Oxyscelio concoloripes (Dodd)

Burks, Roger A., Masner, Lubomir, Johnson, Norman F. & Austin, Andrew D., 2013, Systematics of the parasitic wasp genus Oxyscelio Kieffer (Hymenoptera, Platygastridae s. l.), part II: the Australian and southwest Pacific fauna, ZooKeys 331, pp. 1-266 : 50-53

Oxyscelio concoloripes (Dodd) Figures 51-56; Morphbank37

Sceliomorpha concoloripes Dodd, 1914: 104 (original description); Kieffer 1926: 303, 308 (description, keyed); Naumann et al. 1994: 71 (holotype transferred to ANIC).

Oxyscelio concoloripes (Dodd): Dodd 1931: 75 (generic transfer); Galloway 1976: 99 (type information).

Description.

Female. Body length 3.55-4.15 mm (n=20).

Radicle color and shade: same as scape, both dark brown. Pedicel color: same as scape. A3: shorter than pedicel; as long as pedicel. A4: broader than long. 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. Frontal depression dorsally: not hood-like, open dorsally. Upper frons major sculpture: umbilicate foveate; irregularly rugose. Upper frons microsculpture: absent. Hyperoccipital carina: indicated by a set of irregular elevations. Carina connecting occipital carina to hyperoccipital carina: absent. Occipital carina: uniformly rounded dorsally; weakly arched dorsally, with rounded lateral corners. 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 punctate; absent. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: granulate.

Lateral pronotal area sculpture: anteriorly smooth, posterodorsal corner with dense microsculpture, ventral corner with irregular carinae. 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: umbilicate foveate. Mesoscutal midlobe sculpture at midlength: not different from nearby sculpture. Major sculpture of mesoscutal mid lobe posteriorly: umbilicate foveate; irregularly rugose. Microsculpture of mesoscutal midlobe anteriorly: absent. Microsculpture of mesoscutal midlobe posteriorly: absent. Median mesoscutal carina: present as a ruga. Major sculpture of mesoscutellum centrally: absent; umbilicate punctate. Major sculpture of mesoscutellum peripherally: umbilicate foveate; 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: slightly emarginate posteriorly, concave but elevated posteriorly. Metascutellar setae: absent. Metascutellum sculpture: with large smooth posterior fovea. 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. Postmarginal vein: present. Fore wing apex at rest: reaching middle of T6. Coxae color brightness: same color as femora.

T1 horn: absent. Number of longitudinal carinae of T1 midlobe: 5; obscured by other raised sculpture. T1 lateral carina: straight. 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; longitudinally striate. 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: 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: absent. S6 apex in relation to T6: not exposed to dorsal view. S6 apex: rounded or acuminate.

Male. Body length 3.2-3.65 mm (n=20). A3: longer than pedicel. A5 tyloid shape: narrow, linear. A6: broader than long. A11: broader than long; as long as broad. Major sculpture of mesoscutal midlobe anteriorly: umbilicate foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate foveate; irregularly rugose. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Major sculpture of mesoscutellum centrally: absent. Major sculpture of mesoscutellum peripherally: umbilicate foveate. Microsculpture of mesoscutellum centrally: absent. Microsculpture of mesoscutellum peripherally: absent. Fore wing apex at rest: exceeding metasomal apex. T1 midlobe longitudinal carinae: 3; 4. T3 metasomal flanges: absent. T4 metasomal flanges: absent. T5 metasomal flanges: absent. T6 metasomal flanges: absent. T7: weakly emarginate.

Diagnosis.

Both sexes: Body, including antennae and legs, entirely dark brown. Frontal depression small and nearly flat, transverse carinae absent; submedian carina indicated by weak rugae. Hyperoccipital carina indicated by one or more sharp rugae. Occipital carina incomplete, weakly convex medially; occiput with many transverse rugae. Metascutellum deeply concave, emarginate apically, projecting dorsally. Postmarginal vein absent or extremely short. T1 lateral carina not expanded laterally. Female: A3 longer than pedicel. A4, A5 broader than long. T1 midlobe with 5 longitudinal carinae that may be obscured by a smooth raised area. Fore wing long enough to reach middle of T6 or beyond metasomal apex. T6 broader than long. Male: A4, A11 about as long as broad. T1 midlobe with 4 longitudinal carinae. Fore wing long enough to reach beyond T7. T7 truncate or weakly concave.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=5011]

Material examined.

Holotype, female, S. concoloripes: AUSTRALIA: NSW, no date, ANIC DB 32-012463 (deposited in ANIC). Other material: AUSTRALIA: 76 females, 99 males, OSUC 438799-438808, 438811-438814, 439384-439387, 439389-439395, 439409-439442, 439445-439481, 439483-439485, 445326 (ANIC); OSUC 462587-462589 (CNCI); OSUC 438810, 439388, 439396-439408, 439443-439444, 439482, 439486-439539 (WINC).

Comments.

Our concept of this species suggests that it is variable in female metasomal length. The holotype has a shorter metasoma, in which T6 is broader than long, but some specimens have a longer metasoma, where T6 is longer than broad. Specimens of both forms have been found from the same collection events, and some specimens appear to be intermediate between the two states. Several other Australian species are entirely dark brown, but these species differ in many other respects, and do not appear to form a monophyletic group.