Oxyscelio palati
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Ordo: Hymenoptera
Familia: Platygastridae
Genus: Oxyscelio
Name
Oxyscelio palati Burks sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Description
Female. Body length 2.5–3.4 mm (n=18).
Radicle color and shade: same as scape, both yellowish or reddish. Pedicel color: same as scape. A3: longer than pedicel. A4: longer than broad. A5: broader than long.
Ventral clypeal margin: with slightly convex median lobe. Interantennal process: not elongate. Lower frons at dorsal margin of interantennal process: without transverse carina. Transverse curved rugae extending from frontal depression to eye: absent. Median longitudinal carina in frontal depression: absent. Ventral portion of frontal depression: smooth. Dorsal portion of frontal depression: without transverse carinae. Submedian carina: present only as a weak shift in elevation. Frontal depression dorsally: not hood-like, open dorsally. Upper frons major sculpture: umbilicate foveate; transversely rugose. Upper frons microsculpture: absent. Hyperoccipital carina: indicated by a set of irregular elevations. Carina connecting occipital carina to hyperoccipital carina: absent. Occipital carina: weakly arched dorsally, with sharp lateral corners; omicron-shaped, with sharp corners where median portion meets lateral portions. Occiput sculpture: transversely rugose. Extra carina ventral to occipital carina: absent. Gena length: shorter than eye. Major sculpture of gena anteroventrally: umbilicate foveate. Major sculpture of gena posteroventrally: umbilicate foveate; rugose; absent. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: absent.
Lateral pronotal area sculpture: densely covered with setiferous puncta. Posterior border of central pronotal area: directed anteriorly, protruding at corner of epomial carina and transverse pronotal carina. Mesoscutum anteriorly: very steep and tall, descending at a right angle or protruding anteriorly. Major sculpture of mesoscutal midlobe anteriorly: umbilicate foveate; irregularly rugose. Mesoscutal midlobe sculpture at midlength: not different from nearby sculpture. Major sculpture of mesoscutal midlobe posteriorly: umbilicate foveate; irregularly rugose. Microsculpture of mesoscutal midlobe anteriorly: absent. Microsculpture of mesoscutal midlobe posteriorly: absent. Median mesoscutal carina: present as a vague, occasionally interrupted elevation. Major sculpture of mesoscutellum centrally: umbilicate foveate; irregularly rugose. Major sculpture of mesoscutellum peripherally: umbilicate foveate; irregularly rugose. Microsculpture of mesoscutellum centrally: absent; punctate. Microsculpture of mesoscutellum peripherally: absent. Mesoscutellar rim: not expanded. Mesoscutellar rim medially: without notch. Mesofemoral depression: with slight, indistinct sculpture dorsally, smooth ventrally. Metascutellum shape: deeply emarginate, with the resulting pair of posterior processes subtriangular and directed dorsally. Metascutellar setae: absent. Metascutellum sculpture: with large smooth posterior fovea. Postmarginal vein: absent. Fore wing apex at rest: exceeding metasomal apex. Coxae color brightness: same color as femora. Spines along tibiae: absent. Lateral propodeal carinae: broadly separated, not parallel anteriorly. Setae in metasomal depression: absent. Anterior sculpture of metasomal depression: absent. Median propodeal carina: absent.
T1 horn: absent. Number of longitudinal carinae of T1 midlobe: 5. T1 lateral carina: protruding laterally, visible from ventral view. T2 sculpture: densely foveolate, longitudinal sculpture irregular. T2 sublateral longitudinal foveae: absent. T3 metasomal flanges: absent. T4 sculpture: longitudinally striate to rugose, setal pits spanning interspaces. T4 metasomal flanges: absent. T5 sculpture: longitudinally striate to rugose, setal pits spanning interspaces. T5 metasomal flanges: absent. T6: broader than long. Major sculpture of T6: umbilicate punctate. Microsculpture of T6: absent. T6 medially: slightly emarginate, not separated from apical rim. T6 metasomal flanges: absent. T6 raised peripheral rim: absent. S4 sculpture: longitudinally striate or rugose, setal pits spanning interspaces. S5 sculpture: longitudinally striate to rugose, setal pits spanning interspaces. S5 median carina: absent. S6 peripheral carina: absent. S6 apex in relation to T6: not exposed to dorsal view. S6 apex: rounded or acuminate.
Male. Body length 2.45–3.25 mm (n=19). A3: longer than pedicel. A5 tyloid shape: narrow, linear. A6: broader than long. A11: longer than broad. Major sculpture of mesoscutal midlobe anteriorly: umbilicate foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate foveate; irregularly rugose. Microsculpture of mesoscutal midlobe anteriorly: absent; granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Major sculpture of mesoscutellum centrally: umbilicate foveate; irregularly rugose. Major sculpture of mesoscutellum peripherally: umbilicate foveate; irregularly rugose. Microsculpture of mesoscutellum centrally: absent. Microsculpture of mesoscutellum peripherally: absent. Fore wing apex at rest: exceeding metasomal apex. T1 midlobe longitudinal carinae: 4. T3 metasomal flanges: absent. T4 metasomal flanges: absent. T5 metasomal flanges: absent. T6 metasomal flanges: absent. T7: weakly emarginate.
Diagnosis
Both sexes: Frontal depression shallow; transverse carinae present ventrally, interrupted; submedian carina very weak or absent medially. Hyperoccipital carina indicated by rugae. Occipital carina complete, broadly omicron-shaped medially. Metascutellum deeply concave, emarginate apically, projecting dorsally. Postmarginal vein absent. Coxa not darker than rest of leg. T1 lateral carina expanded laterally. Metasomal flanges absent. Female: A4 longer than broad, A5 almost as long as broad. Mesoscutellum without granulate sculpture. T1 midlobe with 4 longitudinal carinae. Main body of T6 not abruptly separated from apical rim, T6 slightly concave apically. Fore wing long enough to reach beyond metasomal apex. Male: All flagellomeres longer than broad. T1 midlobe with 4 longitudinal carinae. Fore wing long enough to reach beyond metasomal apex. T7 tiny, truncate. Oxyscelio palati is very similar to Oxyscelio hyalinipennis, but differs in having an omicron-shaped occipital carina that has straight connections between the median and lateral portions. It also differs in having a longer antenna, especially in males, and in completely lacking a postmarginal vein. In Oxyscelio hyalinipennis, the venation reaches the wing margin and has a more or less distinct posterior bend indicating the postmarginal vein, but in Oxyscelio palati the venation does not quite reach the anterior wing margin. In known specimens of Oxyscelio palati, the metanotum and posterior rim of the mesoscutellum are amber-colored, in stark contrast to the darker surrounding areas.
Etymology
Latin noun, genitive case, meaning “vault.”
Link to distribution map
[http://hol.osu.edu/map-full.html?id=307096]
Material examined
Holotype, female: AUSTRALIA: QLD, cableway base station, Bellenden Ker Range, 100m, 17.X–9.XI.1981, window trap, OSUC 359578 (deposited in QMBA). Paratypes: AUSTRALIA: 17 females, 19 males, ANIC DB 32-020100, 32-020145, OSUC 359583, OSUC 359584, OSUC 359585, OSUC 359586, OSUC 359587, OSUC 359602, OSUC 359603, OSUC 359604, OSUC 436939 (ANIC); QDPC 0-165695 (QDPC); OSUC 148367, 359582, 359588, 359600-359601 (QMBA); OSUC 359605 (UQIC); OSUC 359575-359577, 359579-359581, 359589-359599, 451356 (WINC).
Original Description
- Burks, R; Masner, L; Johnson, N; Austin, A; 2013: Systematics of the parasitic wasp genus Oxyscelio Kieffer (Hymenoptera, Platygastridae s.l.), part II: the Australian and southwest Pacific fauna ZooKeys, 331: 1-266. doi
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