Enicospilus insinuator (Smith, 1860)

Shimizu, So, Broad, Gavin R. & Maeto, Kaoru, 2020, Integrative taxonomy and analysis of species richness patterns of nocturnal Darwin wasps of the genus Enicospilus Stephens (Hymenoptera, Ichneumonidae, Ophioninae) in Japan, ZooKeys 990, pp. 1-144 : 1

Enicospilus insinuator (Smith, 1860) Figure 19

Ophion insinuator Smith, 1860: 141; HT ♀ from Moluccas, OUMNH, not examined.

Enicospilus zyzzus Chiu, 1954: 23; HT ♀ from China, TARI, examined; synonymised by Gauld and Mitchell (1981: 353).

Specimens examined.

Total of 36 specimens (35♀♀1♂): Brunei (1♀), China (1♀), Japan (28♀♀1♂), Taiwan (5♀♀).

Type series: HT ♀ of Enicospilus zyzzus Chiu, 1954, Foochow, Fukien, CHINA, 13.II.1948, H.F. Chao leg. (TARI); PT ♀ of Enicospilus zyzzus , Oshima, Kyûshû, JAPAN, V.1930, Takahashi leg. (TARI).

Distribution.

Australasian, Eastern Palaearctic, and Oriental regions ( Yu et al. 2016).

Newly recorded from Taiwan.

JAPAN: [ Kyûshû] Kagoshima*; [ Ryûkyûs] Kagoshima* and Okinawa*. * New records. Chiu (1954) has recorded this species from Japan, but lacking collection locality data. Most Japanese specimens were collected in Yakushima by Malaise traps.

Bionomics.

Unknown.

Differential diagnosis.

This species is closest to E. pallidistigma Cushman, 1937, but distinguished from it by the smaller fore wing fenestra and weaker central sclerite (= quadra) (Fig. 19F ). According to Gauld and Mitchell (1981), this species also resembles E. maai and E. rogus , but is easily distinguishable from them by the mesoscutum colour (i.e., mesoscutum with longitudinal vittae or rarely entirely infuscate in E. insinuator , but only posterior part of mesoscutum strongly infuscate in E. maai and E. rogus ). Furthermore, it differs from E. maai by the shape of fore wing fenestra (i.e., fenestra moderate length and anterodistal corner of fenestra antefurcal to RS by more than 0.7 × length of 2rs-m in E. insinuator , as in Fig. 19F ; but fenestra very long and anterodistal corner of fenestra interstitial to RS in E. maai ) and from E. rogus by the torsion of mandible (i.e., mandible twisted by 15-35° in E. insinuator , as in Fig. 19B, D ; but 75-80° in E. rogus ).

Figures

Figure 19. Enicospilus insinuator (Smith, 1860) ♀ from Japan A habitus B head, frontal view C head, dorsal view D head, lateral view E mesosoma, lateral view F central part of fore wing.