Integrative taxonomy and analysis of species richness patterns of nocturnal Darwin wasps of the genus Enicospilus Stephens (Hymenoptera, Ichneumonidae, Ophioninae) in Japan Author Shimizu, So Laboratory of Insect Biodiversity and Ecosystem Science, Graduate School of Agricultural Science, Kobe University, Rokkodaicho 1 - 1, Nada, Kobe, Hyogo 657 - 8501, Japan & DC and Overseas Challenge Program for Young Researchers, Japan Society for the Promotion of Science, Tokyo, Japan & Depertment of Life Sciences, the Natural History Museum, Cromwell Road, London SW 7 5 BD, UK https://orcid.org/0000-0002-5202-4552 parasitoidwasp.sou@gmail.com Author Broad, Gavin R. Depertment of Life Sciences, the Natural History Museum, Cromwell Road, London SW 7 5 BD, UK https://orcid.org/0000-0001-7223-5333 Author Maeto, Kaoru Laboratory of Insect Biodiversity and Ecosystem Science, Graduate School of Agricultural Science, Kobe University, Rokkodaicho 1 - 1, Nada, Kobe, Hyogo 657 - 8501, Japan text ZooKeys 2020 990 1 144 http://dx.doi.org/10.3897/zookeys.990.55542 journal article http://dx.doi.org/10.3897/zookeys.990.55542 1313-2970-990-1 7B73642C278D40F89091B26213C9A704 9F51F78CD53F5005A305DE65494002C4 Enicospilus kikuchii Shimizu, 2017 Figure 22 Enicospilus kikuchii Shimizu, 2017: 187; HT ♀ from Japan, NIAES, examined. Specimens examined. Total of 6 specimens (5♀♀1♂): Japan (5♀♀1♂). Type series: HT ♀ of Enicospilus kikuchii Shimizu, 2017, Kawamata, Chichibu, Saitama Pref., Kanto-Koshin , JAPAN, 28-30.VIII.2012, N. Kikuchi leg. (NIAES); PT ♂ of Enicospilus kikuchii , Eboshi-dake, Kagoshima Pref., Kyushu , JAPAN, 4.V.1969, K. Kusigemati leg. (SEHU-KUSIG). Distribution. Eastern Palaearctic region ( Shimizu 2017 ; present study). JAPAN: [Hokuriku] Fukui*; [ Kanto-Koshin ] Tochigi* and Saitama ( Shimizu 2017 ; present study); [Shikoku] Ehime* and Kochi *; [ Kyushu ] Kagoshima ( Shimizu 2017 ; present study). *New records. Bionomics. Unknown. Differential diagnosis. As in Fig. 22 , the characteristic colour pattern easily distinguishes this species from other Enicospilus species. Morphologically, E. kikuchii resembles E. melanocarpus , but is distinguishable by the following combination of character states: mesosoma, T1, T2, and T5-8 black (Fig. 22A, E ) (usually most of body yellow-brown with black T5-8 in E. melanocarpus , as in Fig. 28A, E ); and metapleuron roughly diagonally punctostrigose (Fig. 22E ) (uniformly punctate or finely diagonally punctostriate in E. melanocarpus , as in Fig. 28E ). Figure 22. Enicospilus kikuchii Shimizu, 2017 ♀ 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.