Enicospilus puncticulatus Tang, 1990

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 puncticulatus Tang, 1990 Figure 37

Enicospilus puncticulatus Tang, 1990: 128; HT ♀ from China, FAFU, not examined.

Specimens examined.

Total of 31 specimens (24♀♀7♂♂): Japan (22♀♀6♂♂), Taiwan (2♀♀1♂).

Distribution.

Oriental region ( Tang 1990); new to the Eastern Palaearctic region.

Newly recorded from Japan.

JAPAN: [ Hokkaidô]; [Hokuriku] Niigata; [ Kantô-Kôshin] Tochigi, Nagano, Yamanashi, and Saitama; [Kinki] Hyôgo; [Shikoku] Kôchi; [ Kyûshû] Fukuoka.

Bionomics.

Unknown.

Differential diagnosis.

This species is most similar to E. pseudopuncticulatus sp. nov., but easily distinguished by the rounded central sclerite and more or less curved fore wing vein 1cu-a, as in Fig. 37F . Furthermore, E. puncticulatus resembles E. melanocarpus , but can be distinguished by the usually separated proximal and distal sclerites (Fig. 37F ) (proximal and distal sclerites strongly confluent in E. melanocarpus , as in Fig. 28F ) and entirely testaceous metasoma (Fig. 37A ) (posterior metasomal segments almost always black in E. melanocarpus , as in Fig. 28A ).

Remarks.

Specimens with various shapes of sclerites of the fore wing fenestra but which are very similar in sculpture are identified as this species by the key provided by Tang (1990). It has proved impossible to segregate morphospecies based on discrete differences in sclerites, and our DNA barcodes differ by less than 1%; if E. puncticulatus represents a species complex, it seems that the CO1 gene is not useful for delimiting species in this complex.

Figures

Figure 28. Enicospilus melanocarpus Cameron, 1905 ♀ 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.

Figure 37. Enicospilus puncticulatus Tang, 1990 ♀ 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.