Drepanoctonus Pfankuch, 1911

Zheng, Xin-Fang, Reshchikov, Alexey & Liu, Jing-Xian, 2021, Two new species of Drepanoctonus Pfankuch, 1911 (Hymenoptera, Ichneumonidae) from the Oriental region, Journal of Hymenoptera Research 83, pp. 1-19 : 1

Genus Drepanoctonus Pfankuch, 1911

Drepanoctonus Pfankuch, 1911: 688. Type species: Drepanoctonus tibialis Pfankuch. Designated by Horstmann, 1986. Monobasic.

Zonopius Benoit, 1961, 63: 305. Type species: Zonopius bicinctus Benoit. Original designation. Synonymized by Townes 1971.

Generic diagnosis.

Fore wing length 6.0-9.0 mm. Body with punctures rather sharp and dense. Combined face and clypeus weakly convex; upper margin of face produced medially as an acute triangle between bases of antennae (except D. rimdahli sp. nov.). Pronotum posteriorly with a swelling just below its upper margin. Epicnemial carina with upper end far from the front edge of mesopleuron. Mesopleuron moderately convex. Propodeum rather short, latero-median longitudinal carinae complete, anterior transverse carina absent, area superomedia confluent with area basalis; posterior transverse carina complete or interrupted in the middle. Propodeal spiracle elongate. Spurs of middle tibia elongate, approximately equal in length. Fore wing with 1cu-a opposite or distad to M&RS, and 2rs-m nearly opposite to 2m-cu. T1 with an oblique baso-dorsal edge, with latero-median longitudinal carinae strong and sharp to apex. T2 usually with a pair of latero-median longitudinal carinae, either shortly present on base or reaching to posterior margin of tergite. T3 and T4 with or without a single weak, incomplete median longitudinal carina. Laterotergite of T2 vestigial, that of T3 narrowly wedge shaped, and that of T4 to T6 moderately wide and separated from their tergites by a crease ( Townes 1971).

Distribution.

Palaearctic, Oriental, Australian and Afrotropical regions (Fig. 1C ).

Biology.

Parasitoids of Drepanidae ( Lepidoptera ) ( Pfankuch 1911; Yu et al. 2016).

Figures

Figure 1. A distribution of the genus Drepanoctonus Pfankuch, 1911 B type habitat of D. rimdahli Liu & Reshchikov, sp. nov. C D. tibialis Pfankuch, 1911 with its host, Watsonalla binaria (Hufnagel, 1767), Germany, Saxony, Radeburg-Berbisdorf, 18 Oct. 2016, ex. 25 May 2017, Franziska Bauer leg. (pers. comm. Bauer)