Oxyscelio verrucae
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Ordo: Hymenoptera
Familia: Platygastridae
Genus: Oxyscelio
Name
Oxyscelio verrucae Burks sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Description
Female. Body length 3.5–4 mm (n=11).
Radicle color and shade: same as scape, both dark brown. Pedicel color: at least partially darker than scape. A3: longer than pedicel. A4: longer than broad; as long as 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: with some transverse carinae. Submedian carina: present. Frontal depression dorsally: not hood-like, open dorsally. Upper frons major sculpture: umbilicate foveate; irregularly rugose. Upper frons microsculpture: absent. Hyperoccipital carina: present as a single carina. Carina connecting occipital carina to hyperoccipital carina: absent. Occipital carina: present laterally, absent medially. Occiput sculpture: irregularly sculptured. Extra carina ventral to occipital carina: present, complete. Gena length: shorter than eye. Major sculpture of gena anteroventrally: umbilicate foveate; umbilicate punctate. Major sculpture of gena posteroventrally: umbilicate foveate; umbilicate punctate. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: absent.
Lateral pronotal area sculpture: smooth anteriorly, densely setose posteriorly. Posterior border of central pronotal area: directed posteriorly, epomial carina absent or meeting transverse pronotal carina at arch on lateral surface of pronotum. Mesoscutum anteriorly: very steep and tall, descending at a right angle or protruding anteriorly. Major sculpture of mesoscutal midlobe anteriorly: transversely rugose; umbilicate punctate. Mesoscutal midlobe sculpture at midlength: not different from nearby sculpture. Major sculpture of mesoscutal midlobe posteriorly: umbilicate foveate; longitudinally rugose. Microsculpture of mesoscutal midlobe anteriorly: absent. Microsculpture of mesoscutal midlobe posteriorly: absent. Median mesoscutal carina: absent. Major sculpture of mesoscutellum centrally: umbilicate foveate; obliquely rugose. Major sculpture of mesoscutellum peripherally: umbilicate punctate. Microsculpture of mesoscutellum centrally: absent. Microsculpture of mesoscutellum peripherally: absent. Mesoscutellar rim: not expanded. Mesoscutellar rim medially: without notch. Mesofemoral depression: longitudinally striate 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: darker than femora. Spines along tibiae: absent. Lateral propodeal carinae: broadly separated, but parallel for a short distance 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: 4. T1 lateral carina: protruding laterally, visible from ventral view. T2 sculpture: anteriorly longitudinally rugose with setal pits spanning interspaces, posteromedially sparsely foveate. T2 sublateral longitudinal foveae: absent. T3 metasomal flanges: absent. T4 sculpture: densely foveate, longitudinal sculpture irregular. T4 metasomal flanges: absent. T5 sculpture: densely foveate, longitudinal sculpture irregular. T5 metasomal flanges: absent. T6: broader than long. Major sculpture of T6: umbilicate punctate. Microsculpture of T6: absent. T6 medially: flat and tapering to a rounded apex, not separated from apical rim. T6 metasomal flanges: absent. T6 raised peripheral rim: absent. S4 sculpture: smooth, with tiny umbilicate foveae. S5 sculpture: smooth, with tiny umbilicate foveae. 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 3.15–3.8 mm (n=17). A3: longer than pedicel. A5 tyloid shape: narrow, linear. A6: broader than long. A11: longer than broad. Major sculpture of mesoscutal midlobe anteriorly: transversely rugose; umbilicate punctate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate foveate; longitudinally rugose. Microsculpture of mesoscutal midlobe anteriorly: absent; granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Major sculpture of mesoscutellum centrally: umbilicate foveate; umbilicate punctate. Major sculpture of mesoscutellum peripherally: umbilicate punctate. Microsculpture of mesoscutellum centrally: absent. Microsculpture of mesoscutellum peripherally: absent. Fore wing apex at rest: exceeding metasomal apex. T1 midlobe longitudinal carinae: 5. T3 metasomal flanges: absent. T4 metasomal flanges: absent. T5 metasomal flanges: absent. T6 metasomal flanges: absent. T7: truncate.
Diagnosis
Both sexes: Frontal depression small and shallow, transverse carinae absent; submedian carina sharp. Hyperoccipital carina indicated by a set of sharp carinae. Occipital carina complete or incomplete, sometimes gradually becoming indistinguishable medially; occiput with many transverse rugae. Mesoscutum and sometimes mesoscutellum with deeply sunken midline, causing surrounding areas to apparently protrude. Metascutellum broad and deeply concave, laterally with only a narrow longitudinally striate area, weakly emarginate or truncate apically, projecting dorsally. Postmarginal vein absent or extremely short. T1 lateral carina not expanded laterally. Female: A3 longer than pedicel. A4 longer than broad, A5 nearly as long as broad. T1 midlobe with 4 longitudinal carinae that may be obscured by a smooth raised area. Fore wing long enough to reach middle of T6. T6 broader than long. Male: All flagellomeres past A3 about as long as broad. T1 midlobe with 5 longitudinal carinae (submedian pair weak). Fore wing long enough to reach beyond T7. T7 tiny, truncate or weakly convex.
Etymology
Latin noun, genitive case, meaning “wart.”
Link to distribution map
[http://hol.osu.edu/map-full.html?id=307118]
Material examined
Holotype, female: AUSTRALIA: NSW, Point Lookout, New England National Park, 30°29'S, 152°25'E, 12.II–22.II.1984, malaise trap, I. D. Naumann, OSUC 442343 (deposited in ANIC). Paratypes: AUSTRALIA: 11 females, 17 males, Australian Museum K245261 (AMSA); OSUC 438815-438817, 438820-438824, 442342, 442345-442354 (ANIC); OSUC 227558, 462571, 462573-462574 (CNCI); OSUC 438818-438819, 438825, 442344 (WINC).
Comments
Oxyscelio verrucae is unusual in having a deep median impression on the mesoscutum, such that submedian areas apparently protrude. It is also unusual in having a large number of strong transverse rugae on the occiput, making it difficult to determine if the occipital carina is present medially or not. This species otherwise resembles Oxyscelio concoloripes, and is provisionally placed in a group with it. Some specimens exist with a completely dark brown body, including antennae and legs. These are considered to be melanistic specimens of the same species.
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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