Oxyscelio liminis
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Ordo: Hymenoptera
Familia: Platygastridae
Genus: Oxyscelio
Name
Oxyscelio liminis Burks sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Description
Female. Body length 3.75–5.65 mm (n=20).
Radicle color and shade: darker than scape. Pedicel color: same as scape. A3: longer than pedicel; as long as pedicel. A4: broader than long. A5: broader than long.
Ventral clypeal margin: uniformly convex. 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: with transverse carinae. Dorsal portion of frontal depression: without transverse carinae. Submedian carina: present. Frontal depression dorsally: not hood-like, open dorsally. Upper frons major sculpture: umbilicate foveate. Upper frons microsculpture: absent. Hyperoccipital carina: absent. Carina connecting occipital carina to hyperoccipital carina: absent. Occipital carina: weakly arched dorsally, with rounded lateral corners. Occiput sculpture: irregularly sculptured. 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. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: absent.
Lateral pronotal area sculpture: with a series of arched carinae, posterodorsal corner with weak longitudinal rugae. 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. Mesoscutal midlobe sculpture at midlength: with large smooth areas. Major sculpture of mesoscutal midlobe posteriorly: umbilicate foveate. Microsculpture of mesoscutal midlobe anteriorly: absent; granulate. Microsculpture of mesoscutal midlobe posteriorly: absent; punctate. Median mesoscutal carina: present as a ruga. Major sculpture of mesoscutellum centrally: umbilicate foveate. Major sculpture of mesoscutellum peripherally: umbilicate foveate. Microsculpture of mesoscutellum centrally: punctate. Microsculpture of mesoscutellum peripherally: punctate. Mesoscutellar rim: not expanded. Mesoscutellar rim medially: without notch. Mesofemoral depression: longitudinally striate dorsally and ventrally. Metascutellum shape: not emarginate, concave but elevated posteriorly. Metascutellar setae: absent. Metascutellum sculpture: with large smooth posterior fovea. Postmarginal vein: absent. Fore wing apex at rest: not reaching base of T5. 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: 6. T1 lateral carina: protruding laterally, visible from ventral view. T2 sculpture: with longitudinal striae or rugae, setiferous puncta present between them. T2 sublateral longitudinal foveae: absent. T3 metasomal flanges: present. T4 sculpture: longitudinally striate to rugose, setal pits spanning interspaces. T4 metasomal flanges: present and strongly protruding. T5 sculpture: longitudinally striate to rugose, setal pits spanning interspaces. T5 metasomal flanges: present as strongly protruding acuminate flanges. T6: broader than long. Major sculpture of T6: umbilicate punctate; longitudinally striate. Microsculpture of T6: absent. T6 medially: with deep emargination that is V-shaped medially, separated from apical rim. T6 metasomal flanges: present, very broadly rounded, with rounded apices. 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: present. S6 peripheral carina: present, posteriorly complete. S6 apex in relation to T6: exposed to dorsal view by T6 emargination. S6 apex: truncate.
Male. Unknown.
Diagnosis
Both sexes: Frontal depression deep, all carinae complete medially; no carinae present above dorsal separator, submedian carina sharp. Hyperoccipital carina absent. Occipital carina complete, medially weakly convex. Mesoscutellar rim not expanded, but sometimes rugose, without median notch. Metascutellum scoop-like, projecting dorsally. Coxa same color as rest of leg. Postmarginal vein absent. Female: A3 longer than pedicel. A4, A5, A6 broader than long. T4, T5, with sharp metasomal flanges. T6 with flat, expanded lateral margins. T6 apically shallowly emarginate, with a short incision medially. S6 exposed to dorsal view, truncate apically. Oxyscelio liminis is very similar to Oxyscelio limbi, but differs in having smaller, less rounded T6 metasomal flanges and a very shallowly and weakly emarginate T6. The mesoscutellar rim in Oxyscelio liminis is not expanded as in Oxyscelio limbi, but can have strong sculpture.
Etymology
Latin noun, genitive case, meaning “apex.”
Link to distribution map
[http://hol.osu.edu/map-full.html?id=307087]
Associations
On flowering Eucalyptus L’Hér.: [Myrtales: Myrtaceae]; collected on Eucalyptus populnea F. Muell.: [Myrtales: Myrtaceae]; collected on Eucalyptus redunca Schauer: [Myrtales: Myrtaceae]
Material examined
Holotype, female: AUSTRALIA: WA, Carnarvon Shire, Gascoyne Research Station, 3.X–7.X.1969, H. E. Evans & R. W. Matthews, OSUC 376712 (deposited in MCZC). Paratypes: AUSTRALIA: 66 females, OSUC 436006, 436010, 436041-436048, 436050, 436053, 437855, 437858-437859 (ANIC); OSUC 462738-462745 (CNCI); OSUC 376684, 376704-376705, 376707, 376710-376711, 376713-376715, 376722, 376733-376734 (MCZC); OSUC 436040 (MVMA); OSUC 148486 (QMBA); OSUC 448603 (QPIM); OSUC 148613-148614, 148616 (SAMA); OSUC 436039 (UQIC); OSUC 436038, 436049, 436051-436052, 437856, 449063-449080, 453990 (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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