| 1 | | | Male (female unknown): T7 with elongate and flat subparallel apical projections, but metasomal flanges absent from other terga; mesoscutal midlobe anteriorly granulate and without median carina but with very strong notauli (Fig. 126) | | | Oxyscelio grandis (Dodd) |
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| – | | | Female, or if T7 with such apical projections (Figs 182, 224), then either mesoscutal midlobe with median carina, mesosoma very tall and steep anteriorly (Figs 177, 219), or notauli absent | | | 2 |
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| 2 | | | |
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| – | | | Gena in lateral view shorter than eye (Figs 177, 331) | | | 3 |
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| 3 | | | T2 and T3 in females with sublateral depressions present, medially defined by sharp carina (Fig. 338). Males T1 midlobe carinae obscured, T7 apex concave but with weakly rounded lateral lobes that are not broad (Fig. 340) | | | Oxyscelio solitarius (Dodd) |
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| – | | | T2 and T3 in females without sublateral depressions. T1 midlobe in males with distinct carinae or T7 apex either truncate (Fig. 7), with elongate spines (Fig. 182), or with broad lobes (Fig. 62) | | | 4 |
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| 4 | | | |
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| – | | | Metasomal depression without setae (Fig. 334) | | | 5 |
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| 5 | | | Metascutellum with a median carina that ends in a granulate area posteriorly (Fig. 348). New Guinea | | | Oxyscelio spatulae Burks, sp. n. |
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| – | | | Metascutellum if with median carina (rare), then without posterior granulate area (Fig. 38) | | | 6 |
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| 6 | | | Metascutellum convex, lateral rims directed ventrally and not visible in dorsal view (Figs 9, 68, 200), rarely very narrow and resting in groove formed by propodeum (Fig. 170) | | | 7 |
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| – | | | Metascutellum concave, with raised lateral rims (Figs 58, 102) | | | 10 |
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| 7 | | | Metascutellum much longer than broad, fitting in groove formed by lateral pronotal areas (Fig. 170) | | | Oxyscelio linguae Burks, sp. n. |
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| – | | | Metascutellum as broad as or broader than long, not in contact with propodeum (Figs 9, 68, 200) | | | 8 |
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| 8 | | | |
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| – | | | Face with oblique carina between eye and frontal depression (Figs 10, 201) | | | 9 |
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| 9 | | | Mesoscutellum with granulate sculpture (Fig. 9). T1 midlobe with 6 separate longitudinal carinae despite presence of anterior T1 horn (Fig. 9). Submedian carina indicated by a single carina (Fig. 10). New Guinea | | | Oxyscelio anfractus Burks, sp. n. |
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| – | | | Mesoscutellum without granulate sculpture (Fig. 200). T1 midlobe carinae obscured, indistinct anteriorly (Fig. 202). Submedian carina indicated by a set of weak rugae (Fig. 201) | | | Oxyscelio mystacis Burks, sp. n. |
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| 10 | | | Interantennal process elongate (Fig. 203). New Guinea, New Britain | | | Oxyscelio nasi Burks, sp. n. |
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| – | | | Interantennal process not elongate (Fig. 11) | | | 11 |
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| 11 | | | Hyperoccipital carina indicated by a sharp carina (Figs 103, 284) and T1 lateral carina not expanded (Fig. 285) andoccipital carina absent medially (Figs 72, 103, 284). Postmarginal vein present and large (Fig. 246): Oxyscelio flavipes group (part) | | | 12 |
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| – | | | Hyperoccipital carina incomplete (Fig. 12), indicated by rounded rugae (Fig. 178), or indicated by a set of 3 or more carinae (Figs 38, 370). If hyperoccipital carina sharp, then T1 with expanded lateral carina (Fig. 326). Postmarginal vein variable | | | 19 |
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| 12 | | | Mesoscutellum with oblique elevated sculpture in female (Fig. 226), extensive granulate sculpture in male | | | Oxyscelio obliquiatis Burks, sp. n. |
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| – | | | Mesoscutellum in female without oblique elevated sculpture (Fig. 102), without granulate sculpture in male | | | 13 |
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| 13 | | | Mesoscutal midlobe with median carina (Fig. 284). Female: fore wing long enough to reach beyond metasomal apex. Male: T1 midlobe with 4 longitudinal carinae anteriorly (Fig. 288) | | | Oxyscelio rugulosus (Dodd) |
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| – | | | Mesoscutal midlobe without a median carina (Fig. 103). If with a weak, indistinct one present (Fig. 320), then in female fore wing not reaching beyond metasomal apex. Male: T1 midlobe with 3 or 4 longitudinal carinae anteriorly (Fig. 106) | | | 14 |
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| 14 | | | Lower face crossed by many curved rugae extending from eye across frontal depression (Fig. 111), weaker in female (Fig. 109). Submedian carina indicated by set of weak rugae (Figs 109, 111) | | | Oxyscelio fluctuum Burks, sp. n. |
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| – | | | Lower face not entirely crossed by curved rugae, any transverse rugae present are restricted to frontal depression. Submedian carina variable, but often indicated by a single elevation (Fig. 73) | | | 15 |
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| 15 | | | Metascutellum with only a small median concave area, laterally with broad longitudinally striate areas (Figs 72, 242) | | | 16 |
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| – | | | Metascutellum with broad median concave area, laterally with narrow or no longitudinally striate areas (Figs 103, 320) | | | 17 |
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| 16 | | | Female: occiput completely smooth (Fig. 241); mesoscutellum with setiferous puncta (Fig. 242). Male: mesoscutellum predominantly longitudinally rugose, but without any strong median carina and without foveate sculpture (Fig. 246) | | | Oxyscelio oculi Burks, sp. n. |
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| – | | | Female: occiput with elevated sculpture (Fig. 72); mesoscutellum densely foveate (Fig. 72). Male: mesoscutellum with a median carina or ruga, otherwise densely foveolate to punctate, without other longitudinal rugae (Fig. 76) | | | Oxyscelio croci Burks, sp. n. |
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| 17. | | | Occiput strongly sculptured, with transverse rugae (Fig. 320). Female: T1 midlobe with raised smooth area obscuring longitudinal carinae anteriorly (Fig. 321) | | | Oxyscelio sepisessor Burks, sp. n. |
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| – | | | Occiput weakly sculptured, almost entirely smooth (Fig. 103). Female: T1 midlobe without raised smooth area, all longitudinal carinae complete anteriorly (Fig. 104) | | | 8 |
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| 18 | | | |
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| 19 | | | T1 lateral carina expanded and laterally lobe-like (Fig. 13), or absent with the area obscured by dense sculpture (Fig. 168). Metasomal flanges present on T5 and/or T6 in male and female of species with an obscured lateral T1 carina (Fig. 168). T7 deeply concave apically in some males (Fig. 62) | | | 20 |
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| – | | | T1 lateral carina simple, not expanded, carina-like (Figs 3, 5). Metasomal flanges absent (Fig. 5). T7 apically truncate or very weakly emarginate in male (Fig. 7) | | | 72 |
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| 20 | | | T6 in female [for male, see couplet 50] with subapical spine-like (cornicle-shaped) dorsally projecting spines (Fig. 180) | | | Oxyscelio livens Burks, sp. n. |
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| – | | | T6 in female either lacking spines or with flat, apical spines (Fig. 222) | | | 21 |
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| 21 | | | Hyperoccipital carina indicated by a strong carina; occiput almost entirely smooth (Figs 226, 326) | | | 22 |
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| – | | | If hyperoccipital carina strong, then occiput densely sculptured (Fig. 86) | | | 23 |
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| 22 | | | Female: mesoscutellum with strong longitudinal carinae and/or rugae (Fig. 326). Male: mesoscutellum with strong rugose sculpture (Fig. 330) | | | Oxyscelio shakespearei (Girault) |
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| – | | | Female: mesoscutellum with oblique raised sculpture (Fig. 226). Male: mesoscutellum granulate, weakly sculptured (Fig. 230) | | | Oxyscelio obliquiatis Burks, sp. n. |
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| 23 | | | Female: Main body of T6 forming a complete ledge above apical rim, hiding it from dorsal view, instead usually concave and revealing apex of S6 to dorsal view (Figs 190, 368). Male: T5-T7 with metasomal flanges (Fig. 192): Oxyscelio mirellus species group (part) | | | 24 |
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| – | | | Female: Main body of T6 either not forming ledge, or with ledge interrupted medially and descending to a clearly visible apical rim, not revealing S6 to dorsal view (Fig. 46). Male: T5, T6 of most species without metasomal flanges (Fig. 132), but with sharp corners in some species in which T7 also has elongate, narrow metasomal flanges (Fig. 282) | | | 35 |
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| 24 | | | Female: T6 with complete peripheral ledge formed by thin cuticle (Fig. 210). Male: All flagellomeres between A3 and A12 broader than long (Fig. 211) andcoxae same color as rest of leg andT6 with only tiny metasomal flanges (Fig. 212) | | | Oxyscelio nigriclava (Dodd) |
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| – | | | Female: T6 with lateral metasomal flanges or a posterior metasomal flange that is interrupted medially (Fig. 190). Male: if flagellomeres transverse then coxae dark or T6 metasomal flanges elongate (Fig. 192) | | | 25 |
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| 25 | | | Mesoscutal midlobe with transverse carinae (Fig. 114). Metasomal flanges flat and elongate, acuminate, with irregular edges (Figs 116, 118) | | | Oxyscelio foliorum Burks, sp. n. |
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| – | | | Mesoscutal midlobe without transverse carinae (Fig. 188). Metasomal flanges not as elongate (Figs 164, 192) | | | 26 |
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| 26 | | | Frontal depression with transverse carinae present in dorsal portion (Fig. 121), although these carinae may be medially interrupted (Fig. 395); submedian carina weakly developed or absent (Figs 121, 395). Coxa always darker than rest of leg (Fig. 119) | | | 27 |
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| – | | | Frontal depression without transverse carinae in dorsal portion; submedian carina strong, sharp (Fig. 161). Coxa color variable | | | 32 |
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| 27 | | | Female: A4 longer than broad, A5 as long as or longer than broad (Fig. 121). Male: T6 metasomal flanges with strong corners and hardly projecting (Fig. 124) | | | Oxyscelio funis Burks, sp. n. |
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| – | | | Female: A4 not longer than broad, A5 broader than long. Male: T6 metasomal flanges (when male known) with rounded projecting lobes (Fig. 148) | | | 28 |
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| 28 | | | Mesoscutellar rim without median notch (Fig. 366) | | | 29 |
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| – | | | Mesoscutellar rim with median notch (Fig. 144) | | | 30 |
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| 29 | | | Metascutellum tiny (Fig. 394). Apex of S6 exposed to dorsal view (Fig. 396) | | | Oxyscelio velamenti Burks, sp. n. |
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| – | | | Metascutellum broad (Fig. 365). S6 hidden from dorsal view by large apical rim of T6 (Fig. 368) | | | Oxyscelio truncationis Burks, sp. n. |
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| 30 | | | Female: T5 without metasomal flanges, T6 weakly or not at all emarginate apically (Fig. 354) | | | Oxyscelio stipulae Burks, sp. n. |
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| – | | | Female: T5 with metasomal flanges, T6 deeply emarginate apically (Figs 18, 146) | | | 31 |
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| 31 | | | Mesoscutal midlobe with strong, coarse foveate sculpture, without smooth areas (Fig. 144) | | | Oxyscelio incisurae Burks, sp. n. |
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| – | | | Mesoscutal midlobe with weaker sculpture and with smooth area near midlength (Fig. 16) | | | Oxyscelio bellariorum Burks, sp. n. |
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| 32 | | | Female: T6 deeply emarginate but medially truncate (Fig. 190). Male: A11 broader than long (Fig. 191). Coxa darker than rest of leg (Fig. 187) | | | Oxyscelio mirellus (Dodd) |
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| – | | | Female: T6 V-shaped or rounded medially if deeply emarginate (Figs 162, 168, 304). Male: A11 longer than broad (Figs 163, 305). Coxa usually (2 out of 3 species) same color as rest of leg (Fig. 159) | | | 33 |
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| 33 | | | Mesoscutellar rim expanded (Fig. 160). Female: T6 deeply emarginate, angular medially (Fig. 162). Male: T5 with metasomal flanges (Fig. 164) | | | Oxyscelio limbi Burks, sp. n. |
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| – | | | Mesoscutellar rim not expanded (Fig. 166). If rim weakly sculptured (Fig. 302) then T6 weakly or not at all emarginate in female (Figs 168, 304). Male T5 phenotype unknown | | | 34 |
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| 34 | | | Coxa darker than rest of leg (Fig. 301). Female: T5 with rounded metasomal flanges (Fig. 304) | | | Oxyscelio scismatis Burks, sp. n. |
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| – | | | Coxa same color as rest of leg (Fig. 165). Female: T5 with sharp metasomal flanges (Fig. 168) | | | Oxyscelio liminis Burks, sp. n. |
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| 35 | | | T6 abruptly narrower than T5 (sometimes T5 also abruptly narrower than T4), these with strong, straight posterolateral corners (Fig. 280). T6 in female with narrow and elongate posterior metasomal flanges or sharp posterolateral corners (Fig. 280) or T5 with subapical protrusion (Fig. 378). Males with strong narrow T7 metasomal flanges (Fig. 282): Oxyscelio rami species group | | | 36 |
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| – | | | If apical terga abruptly narrower than preceding terga, then some of them other than apical tergum with metasomal flanges (Fig. 380). T7 emarginate but without metasomal flanges (Fig. 294) | | | 39 |
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| 36 | | | T5 with subapical rounded protrusions (Figs 378, 380) | | | Oxyscelio umbonis Burks, sp. n. |
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| – | | | T5 without subapical protrusions (Figs 36, 66, 280) | | | 37 |
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| 37 | | | Apical tergum medially blunt or roundly emarginate, with elongate narrow metasomal flanges (Figs 36, 280) | | | 38 |
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| – | | | Apical tergum medially angular, with sharp posterior corners that are not elongate (Fig. 66) | | | Oxyscelio contusionis Burks, sp. n. |
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| 38 | | | |
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| 39 | | | Female: T6 with lateral ledges that medially slope down to the apical rim (Fig. 46), or T6 with subapical metasomal flanges (Figs 80) or a broad shelf (Fig. 368). Male: Fore wing not long enough to reach beyond metasomal apex andT7 deeply emarginate apically but without posterior spines (Fig. 132) | | | 40 |
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| – | | | Female: T6 without lateral ledges, without metasomal flanges (Fig. 140). Male: Either fore wing exceeding metasomal apex orT7 truncate or hardly emarginate apically (Fig. 142) or T7 with narrow, spine-like posterior projections (Fig. 182) | | | 48 |
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| 40 | | | Female: T6 with tiny sharp subapical metasomal flanges, tergum abruptly narrowed posterior to them (Fig. 80). Male: A11 broader than long (Fig. 131) and T7 deeply emarginate (Fig. 132) | | | 41 |
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| – | | | Female: T6 with lateral margins forming shelf-like areas (Fig. 215, 368). Male: A11 longer than broad (Fig. 293) | | | 42 |
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| 41 | | | Coxa darker than rest of leg (Fig. 77). Female: A3 longer than pedicel, T1 midlobe with 6 longitudinal carinae (Fig. 80). Males unknown | | | Oxyscelio cuspidis Burks, sp. n. |
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| – | | | Coxa same color as most of femur (Fig. 127). Female: A3 not longer than pedicel, T1 midlobe with 5 longitudinal carinae. Males with A4 and A11 broader than long (Fig. 131) | | | Oxyscelio gressus Burks, sp. n. |
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| 42 | | | Female: T6 apex with strongly protruding posterior rim, main body of tergum anterior to it forming a narrowed shelf laterally, median carina extending from main body of tergum to apical rim; all this together forming an almost trident-shaped apex (Figs 46, 50). Submedian carina sharp (Figs 45, 49) | | | 43 |
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| – | | | Female: T6 with hardly protruding posterior rim, main body of tergum forming broad shelf laterally that is partially raised above apical rim and does not have a median carina; all this together forming an essentially truncate apex (Figs 215, 368). Submedian carina weak or absent (Figs 216, 367) | | | 44 |
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| 43 | | | Female: T4 with broad, flat metasomal flanges (Fig. 50) | | | Oxyscelio clupei Burks, sp. n. |
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| – | | | Female: T4 without metasomal flanges, or with very tiny and sharply pointed metasomal flanges (Fig. 46) | | | Oxyscelio clivi Burks, sp. n. |
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| 44 | | | Frontal depression without carinae in dorsal portion (Figs 216, 367) | | | 45 |
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| – | | | Frontal depression with some carinae in dorsal portion, which may be interrupted medially (Fig. 99, 353) | | | 46 |
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| 45 | | | Female (males unknown): Fore wings not long enough to extend beyond T5 (Fig. 368) | | | Oxyscelio truncationis Burks, sp. n. |
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| – | | | Female: Fore wings extending beyond T5 (Fig. 215). Male: A11 broader than long (Fig. 217); T7 tiny, not deeply emarginate apically (Fig. 218) | | | Oxyscelio nigricoxa (Dodd) |
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| 46 | | | Female: A4 broader than long. [Males unknown] | | | 47 |
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| 47 | | | Female: T6 only shallowly emarginate medially, not sloping to apical rim (Fig. 354) | | | Oxyscelio stipulae Burks, sp. n. |
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| – | | | Female: T6 deeply emarginate medially, with a median slope leading down to apical rim (Fig. 100) | | | Oxyscelio exiguitatis Burks, sp. n. |
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| 48 | | | Males only: T7 with long posterior spines (Fig. 182) | | | 49 |
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| – | | | Male or female: apical tergum without spines (Fig. 142) | | | 51 |
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| 49 | | | A4 longer than broad (Fig. 223). Body without metallic color (Fig. 220), legs yellowish | | | Oxyscelio nitoris Burks, sp. n. |
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| – | | | A4 broader than long (Figs 181). Either body with some metallic color (Fig. 178), or entirely dark brown including legs (Fig. 381) | | | 50 |
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| 50 | | | Head and mesosoma weakly metallic blue or green (Fig. 178). Legs yellowish (Fig. 177) | | | Oxyscelio livens Burks, sp. n. |
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| – | | | Entire body non-metallic dark brown, including legs (Fig. 381) | | | Oxyscelio uncinorum Burks, sp. n. |
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| 51 | | | Frontal depression deep and nearly parallel-sided, with many transverse carinae above and below dorsal separator, but submedian carina weak or absent medially (Fig. 59). Female: Fore wing long enough to reach middle of T4 or T5; T6 apically steep and not emarginate (Fig. 60). Male: Fore wing long enough to reach middle of T5, T7 broadly emarginate (Fig. 62), A11 longer than broad (Fig. 61) | | | Oxyscelio conjuncti Burks, sp. n. |
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| – | | | Frontal depression, if with many carinae, then strongly broadening ventrally and not deep (Fig. 135). Other features variable, but rarely as above | | | 52 |
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| 52 | | | Tibiae with spines (Figs 341) | | | 53 |
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| 53 | | | Frontal depression very broad, with strong submedian carina (Fig. 343) | | | Oxyscelio sordes Burks, sp. n. |
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| – | | | Frontal depression not very broad, submedian carina weak or absent (Figs 135) | | | Oxyscelio hamorum Burks, sp. n. |
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| 54 | | | |
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| – | | | Mesoscutal midlobe posteriorly with few or no longitudinal rugae | | | 55 |
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| 55 | | | Hyperoccipital carina indicated by sharp carina (Fig. 314). Female: submedian carina indicated by a set of weak rugae or carinae (Fig. 315). Mesoscutellum with elevated sculpture, including weakly indicated oblique elevations (Fig. 314) | | | Oxyscelio scutorum Burks, sp. n. |
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| – | | | If hyperoccipital carina sharp and submedian carina accompanied by additional carinae, then mesoscutellum without elevated sculpture (Fig. 86) | | | 56 |
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| 56 | | | Frontal depression with carinae or transverse elevations, which may be medially interrupted, above dorsal separator (Figs 14, 83) | | | 57 |
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| – | | | Frontal depression smooth dorsally (Fig. 25) | | | 61 |
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| 57 | | | Coxa darker than rest of leg (Fig. 11), or entire body dark brown including legs | | | 58 |
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| – | | | Coxa not darker than rest of leg, apical part of legs yellowish (Fig. 193) | | | Oxyscelio montanus (Dodd) |
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| 58 | | | Female only (male cannot be reliably keyed past this point): A4 longer than broad | | | 59 |
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| – | | | Female: A4 broader than long | | | 60 |
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| 59 | | | Submedian carina complete medially as a distinct carina (Fig. 14) | | | Oxyscelio atricoxa (Dodd) |
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| 60 | | | Postmarginal vein present, venation reaching or nearly reaching anterior wing margin (Fig. 410) | | | Oxyscelio wa Burks, sp. n. |
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| – | | | Postmarginal vein absent, venation not closely approaching anterior wing margin (Fig. 298) | | | Oxyscelio sarcinae Burks, sp. n. |
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| 61 | | | Entire body dark brown, including antennae and legs | | | 62 |
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| – | | | Some part(s) of legs and antennae yellowish | | | 64 |
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| 62 | | | Occipital carina with flat transverse sections connected median arch to lateral areas (Fig. 382). Male: T7 with apical spines (Fig. 386) | | | Oxyscelio uncinorum Burks, sp. n. |
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| – | | | Occipital carina nearly uniformly arched, without flat transverse sublateral sections. (Figs 258, 360). Male: T7 without spines (Figs 262, 364) | | | 63 |
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| 63 | | | Female: T1 midlobe longitudinal carinae obscured by smooth area anteriorly. Male: most flagellomeres between A4 and A11 broader than long, T7 blunt apically and without lobes | | | Oxyscelio pollicis Burks, sp. n. |
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| – | | | Female: T1 midlobe with 4 distinct longitudinal carinae. Male: all flagellomeres longer than broad, T7 emarginate apically and with rounded posterior lobes | | | Oxyscelio tenuitatis Burks, sp. n. |
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| 64 | | | Coxa darker than rest of leg (Figs 81, 183, 213) | | | 65 |
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| – | | | Coxa not darker than rest of leg (Fig. 137) | | | 67 |
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| 65 | | | Female: fore wing not long enough to exceed metasomal apex; A4 longer than broad; T6 not concave apically (Fig. 84) | | | Oxyscelio densitatis Burks, sp. n. |
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| – | | | Female: fore wing long enough to reach or exceed metasomal apex, A4 as broad or broader than long; T6 at least mildly concave apically (Figs 186, 215) | | | 66 |
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| 66 | | | Female: mesoscutellum very sparsely foveate, with broad smooth areas between foveae (Fig. 184); T6 only slightly concave apically (Fig. 186); A3 not longer than pedicel | | | Oxyscelio magniclava (Dodd) |
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| – | | | Female: mesoscutellum densely foveate (Fig. 214); T6 distinctly concave apically (Fig. 215); A3 longer than pedicel | | | Oxyscelio nigricoxa (Dodd) |
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| 67 | | | Occipital carina omicron-shaped, with narrow and strongly convex median section connected to lateral sections by a transverse carina (Fig. 220) | | | 68 |
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| – | | | Occipital carina broadly rounded, with no differentiation medially (Fig. 138) | | | 69 |
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| 68 | | | Metanotum and posterior rim of mesoscutellum pale, in contrast with surrounding areas (Fig. 248). Female: A4 longer than broad. Male: T7 without posterior spines (Fig. 252) | | | Oxyscelio palati Burks, sp. n. |
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| – | | | Metanotum and posterior rim of mesoscutellum not pale (Fig. 220). Female: A4 broader than long. Male: T7 with posterior spines (Fig. 224) | | | Oxyscelio nitoris Burks, sp. n. |
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| 69 | | | |
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| – | | | Occipital carina present medially | | | 70 |
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| 70 | | | Submedian carina weak and indicated by rounded ruga, frontal depression shallow (Fig. 139). Postmarginal vein present but very short | | | Oxyscelio hyalinipennis (Dodd) |
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| – | | | Submedian carina sharp and strong, and frontal depression deep (Figs 25, 195). Postmarginal vein absent (as in Fig. 298) | | | 71 |
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| 71 | | | Dorsal portion of frontal depression without transverse carinae (Fig. 25). Female: A3 shorter than pedicel (Fig. 25) | | | Oxyscelio brevitas Burks, sp. n. |
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| – | | | Female: Dorsal portion of frontal depression with interrupted transverse carinae (Fig. 195). A3 longer than pedicel | | | Oxyscelio montanus (Dodd) |
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| 72 | | | Hyperoccipital carina and submedian carina represented by several (more than 3) sharp and distinct rugae (Figs 38, 39, 370, 371). Legs, including coxae, bicolored (Figs 37, 369). New Caledonia | | | 73 |
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| – | | | Hyperoccipital carina and submedian carina not both represented by so many rugae (Figs 3, 4). Leg color variable, usually not bicolored | | | 74 |
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| 73 | | | Female: Fore wing long enough to reach middle of T5; T1 with very strong anterior horn; T6 longer than broad (Fig. 372). Male: fore wing long enough to reach apex of T5 | | | Oxyscelio tubi Burks, sp. n. |
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| – | | | Female: Fore wing long enough to reach beyond metasomal apex; T1 with very weak anterior swelling; T6 broader than long (Fig. 40). Male: fore wing long enough to reach beyond metasomal apex | | | Oxyscelio circulorum Burks, sp. n. |
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| 74 | | | Metasomal sterna entirely smooth aside from setiferous puncta (Fig. 157): Oxyscelio leviventris species group | | | 75 |
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| – | | | Metasomal sterna with some longitudinal rugae or carinae (Fig. 136) | | | 76 |
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| 75 | | | |
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| – | | | |
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| 76 | | | Epomial corner projecting laterally (Figs 28, 388). Genal carina expanded in ventral half, with long foveae separating it from gena (Figs 27, 387): Oxyscelio catenae species group | | | 77 |
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| – | | | Epomial corner not projecting laterally (Fig. 3). Genal carina not expanded (Fig. 2) | | | 78 |
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| 77 | | | Submedian carina present, indicated by rounded ruga (Fig. 29). Female: mesoscutellum with smooth area centrally (Fig. 28); fore wing long enough to reach middle of T5. Male: Fore wing long enough to reach middle of T6 | | | Oxyscelio catenae Burks, sp. n. |
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| – | | | Submedian carina absent, the area with some convergent heart-shaped sculpture (Fig. 389). Female: mesoscutellum densely sculptured centrally (Fig. 388); fore wing long enough to reach apex of T5 or middle of T6. Male: Fore wing long enough to reach beyond metasomal apex | | | Oxyscelio valdecatenae Burks, sp. n. |
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| 78 | | | Mesoscutum and mesoscutellum with sunken median longitudinal depression where median carinae would otherwise be; areas lateral to these depressions strongly raised (Fig. 398) | | | Oxyscelio verrucae Burks, sp. n. |
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| – | | | Mesoscutum and mesoscutellum without longitudinal depression, without raised submedian areas (Fig. 3) | | | 79 |
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| 79 | | | Submedian carina and hyperoccipital carina absent (Fig. 406). Mesosoma yellow, with only tiny setiferous puncta dorsally (Fig. 405). Vanuatu, Fiji | | | Oxyscelio viator Burks, sp. n. |
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| – | | | Submedian carina and/or hyperoccipital carina indicated by carinae or rugae (Fig. 4). Mesosomal color variable, but with more sculpture than just setiferous puncta if yellow (Fig. 3) | | | 80 |
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| 80 | | | Mesoscutellum, posterior portion of mesoscutal midlobe with many strong longitudinal rugae (Fig. 254) | | | Oxyscelio pectinis Burks, sp. n. |
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| – | | | Mesoscutellum especially, and usually mesoscutal midlobe, without longitudinal rugae (Fig. 3) | | | 81 |
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| 81 | | | |
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| – | | | Metascutellum about as long as broad, concave dorsally, without rugae centrally. (Fig. 278) | | | 82 |
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| 82 | | | Postmarginal vein absent or extremely short. Entire body, including antennae and legs, dark brown (Fig. 51) | | | Oxyscelio concoloripes (Dodd) |
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| – | | | Postmarginal vein long, thick. At least part of legs yellowish or reddish (Fig. 2) | | | 83 |
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| 83 | | | Hyperoccipital carina sharp and strongly developed (Fig. 320). Frontal depression without transverse carinae (Fig. 322). Occipital carina incomplete medially (Fig. 320; can be difficult to assess due to rough sculpture) | | | Oxyscelio sepisessor Burks, sp. n. |
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| – | | | Either: hyperoccipital carina irregular or weakly developed, or: frontal depression with transverse carinae that may be interrupted medially (Fig. 4) and occipital carina complete medially (Fig. 3) | | | 84 |
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| 84 | | | Metasomal depression roughly sculptured, with anterior carinae or submedian foveae (Figs 334, 357). Frontal depression deep, without transverse carinae or with very short and broadly interrupted carinae, without median carina (Fig. 333) | | | 85 |
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| – | | | Metasomal depression smooth anteriorly (Fig. 94), sometimes hidden by T1 horn. Frontal depression variable | | | 86 |
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| 85 | | | |
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| – | | | |
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| 86 | | | Occiput concave dorsally, outlined by carinae because of weak connection between hyperoccipital carina and occipital carina (Figs 3, 92, 272) | | | 87 |
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| – | | | Occiput convex dorsally, with no connection between occipital carina and hyperoccipital carina (Figs 174, 268) | | | 89 |
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| 87 | | | Median carina of frontal depression reaching submedian carina (Fig. 93). Mesoscutellum smooth, with only some tiny setiferous puncta; metascutellum tiny, very narrow (Fig. 92). Female: T1 midlobe with 5 distinct longitudinal carinae (Fig. 92). Male: T1 midlobe with 4 longitudinal carinae (Fig. 96) | | | Oxyscelio divisionis Burks, sp. n. |
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| – | | | Median carina of frontal depression not reaching submedian carina (Figs 4, 273). Mesoscutellum densely foveate; metascutellum moderately broad, superficially rugose (Figs 3, 272). Female: T1 midlobe with anterior swelling obscuring longitudinal carinae (Figs 3, 272). Male: T1 midlobe with 3 longitudinal carinae (Figs 7, 276) | | | 88 |
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| 88 | | | Female: T1 horn weakly developed, not nearly reaching metascutellum (Figs 3, 5); fore wing long enough to reach middle of T6; T6 broader than long (Fig. 5). Male: fore wing long enough to exceed metasomal apex; metasoma moderately broad (Fig. 7) | | | Oxyscelio aciculae Burks, sp. n. |
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| – | | | Female: T1 horn strongly developed, nearly reaching metascutellum (Fig. 272); fore wing long enough to reach middle of T5 or base of T6; T6 longer than broad (Fig. 274. Male: fore wing not long enough to exceed metasomal apex; metasoma very narrow (Fig. 276) | | | Oxyscelio radii Burks, sp. n. |
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| 89 | | | Metascutellum medially with a branched ruga (Fig. 174). Lord Howe Island | | | Oxyscelio lintris Burks, sp. n. |
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| – | | | Metascutellum medially with 3 longitudinal carinae between the lateral margins (Fig. 268). Queensland | | | Oxyscelio productionis Burks, sp. n. |
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