Kusigematia, Watanabe, 2019

Watanabe, Kyohei, 2019, A review of the Japanese species of the genus Xanthocampoplex Morley, 1913 (Hymenoptera, Ichneumonidae, Campopleginae), with description of a new genus, Zootaxa 4661 (3), pp. 579-586 : 580-582

Kusigematia gen. nov.

Type species: Xanthocampoplex kumatai Kusigemati, 1982

Description. Body covered with silver setae, its length shorter than 4.5 mm. Inner margin of eye not notched opposite antennal socket. Apical margin of clypeus simply arched, thin and narrowly reflexed. OOL longer than OD ( Fig. 1 ). Occipital carina complete ( Fig. 1 ), its lower end joined with hypostomal carina at mandibular base. Flagellum covered with long setae and with an erect, very long seta on apex of ventral surface ( Figs 2–4 ). All flagellomeres longer than wide. Upper tooth of mandible slightly longer than lower tooth. Ventral margin of mandible with a narrow flange. Propleuron without a forward-projecting flange. Mesoscutum mat ( Fig. 11 ). Scutellum weakly convex in lateral view. Mesopleuron largely reticulate or mat. Epicnemial carina complete, its dorsal apex joined with an- terior margin of mesopleuron. Posterior transverse carina of mesosternum complete. Propodeum nor quite elongate and very short. Propodeal spiracle circular. Propodeal carinae complete or sometimes longitudinal carina(e) partly absent. Fore wing shorter than 3.6 mm. Areolet absent. Postero-distal corner of second discoidal cell in form an obtuse angle to right angle (90–95°). Nervellus not intercepted, subvertical or vertical. Discoidella absent. Hind tibia without some long, robust setae dorsally ( Fig. 5 ). Hind tarsus with a continuous, straight, median vertical row of very closely spaced small hairs of first to fourth tarsomeres ( Figs 5, 6 ). Tarsal claws small ( Fig. 5 ) and simple. Glymma present and small. Median area of T II to T IV with a large smooth or polished area ( Fig. 13 ). Apex of dorsal valve of ovipositor with a distinct convexity behind of narrow subapical notch ( Figs 7–9 ). Ovipositor at most a little longer than apical depth of metasoma ( Figs 10, 12 , 14).

Coloration ( Figs 10 –14). Body (excluding wings and legs) black to blackish brown, without large yellow markings. Metasomal tergites sometimes tinged with reddish brown.

Distribution. Eastern Palaearctic region ( Japan and Far East Russia).

Etymology. The generic name is from Dr Kanetoshi Kusigemati, who is a taxonomist of Ichneumonidae and his studies of ichneumonidae contribute Asian ichneumonology.

Bionomics. The host is Gracillariidae ( Kusigemati, 1982) .

Remarks. This genus contains the following three species.All of them can be distinguished by the key provided Kusigemati (1982) with descriptions of each species.

Figures

FIGS 1–9. Kusigematia caloptiliae (Kusigemati) (2, 7), K. kumatai (Kusigemati) (1, 3, 5, 6, 8) and K. spulerinae (Kusigemati) (4, 9), paratypes, females from Japan—5, head, dorsal view; 2–4, left antenna, lateral view; 5, 6, left hind leg, anterior view, arrows indicate a continuous, straight, median vertical row of very closely spaced small hairs; 7–9, apex of ovipositor, lateral view, arrows indicate a convexity. FL: flagellomere.

FIGS 10–13. Kusigematia caloptiliae (Kusigemati) (10, 11), K. kumatai (Kusigemati) (12, 13) and K. spulerinae (Kusigemati) (14), holotypes, females from Japan—10, 12, 13, lateral habitus; 11, T II and T III, dorsal view; 13, mesoscutum, dorsal view.