Vulgichneumon okinawae sp. nov.

(Figs 69–74)

Holotype. (♀) [Japan] Okinawa Pref., Okinawajima Isl., Kunigami Vil., Yona, 20. V. 2007, K. Watanabe leg. (Kanagawa).

Etymology. The species name refers to the collection site, Okinawajima Island.

Description. Female. Body length 8.3 mm. Fore wing 5.9 mm.

Head. Flagellum with 27 flagellomeres, filiform; 1 st flagellomere 2.4× as long as wide, 8 th flagellomere square, widest flagellomeres about square. Temple rather short, distinctly and roundly narrowed behind eye. OED 1.0× and OOD 1.0× ocellar diameter. Frons coarsely rugose-punctate. Face densely punctate, shining. Clypeus slightly convex, with sparse punctures; apical margin almost straight. Mandible with two teeth; ventral tooth much smaller than dorsal tooth, not bent inwards. MI 0.8. Genal carina reaching hypostomal carina far from mandibular base, both carinae low.

Mesosoma. Notaulus impressed in frontal 0.2 of mesoscutum. Mesoscutum densely punctate, punctures finer in anterior half and larger in posterior parts, shining. Mesopleuron densely rugose-punctate and with coarse longitudinal ridges; speculum punctate. Metapleuron densely rugose-punctate; juxtacoxal carina present. Scutellum moderately and roundly elevated, as long as wide, with rather dense punctures, without lateral carina. Propodeum completely carinate, without apophysis; spiracle slit-shaped. Area superomedia hexagonal, 1.4× as long as wide; costula reaching its middle. Hind coxa densely punctate and with large scopa (0.5× coxal length) ventrally. Hind femur finely punctulate, 3.5× as long as wide. External surface of hind tibia without denticular spines. Claws simple. Areolet pentagonal, frontal distance between veins 2rs-m and 3rs-m 2.0× their width; vein 2m-cu slightly distal to its middle. Vein 1cu-a interstitial.

Metasoma. Oxypyygous. Postpetiole moderately widened and coarsely punctate, without latero-median carina, median field moderately elevated. Gastrocoelus weakly impressed, with lateral longitudinal ridge. Thyridium small, transverse, 0.4× as wide as interval between thyridia. 2 nd tergite 1.2× as wide as long. 2 nd and 3 rd tergites densely rugose-punctate, dull. 4 th tergite densely punctate; following tergites with very fine setiferous punctures, shining. Ovipositor sheath reaching beyond metasomal apex by half length of 7 th tergite.

Color. Black. Palps and flagellomeres 8–11 dorsally ivory. Clypeus and median mandible dark reddish. Collar with ivory spot. Scutellum yellowish, reddish-brown basally. Tergites black; postpetiole and 2 nd tergite with reddish suffusion; 5 th tergite with small apical ivory spot, 6 th and 7 th tergites widely ivory dorsally. Legs brown; fore and mid coxae and trochanters with frontal ivory spots; fore tibia with yellow stripe frontally. Wings almost hyaline; pterostigma brown.

Male unknown.

Distribution. Japan (Okinawajima Isl.).

Remarks. In the key of the Vulgichneumon species of the Ryukyu Islands (Momoi 1970), this new species runs to V. taiwanensis (Uchida, 1927) but differs by its smaller size, distinct scopa of hind coxa, ivory palps, and ± reddish suffusion of basal tergites.