Enicospilus yonezawanus (Uchida, 1928)*

Shimizu, So, 2020, The Nepalese species of the genus Enicospilus Stephens, 1835 (Hymenoptera, Ichneumonidae, Ophioninae): a preliminary revision and identification key to species, Deutsche Entomologische Zeitschrift 67 (1), pp. 69-126 : 69

Enicospilus yonezawanus (Uchida, 1928)* Figs 2D , 27

Henicospilus yonezawanus Uchida 1928: 218; lectotype ♀, Japan, SEHU, designated by Townes et al. (1965: 337), examined.

Enicospilus microstriatellus Uchida 1956: 95; holotype ♂, Ryûkyû Island, SEHU, examined; synonymised by Gauld and Mitchell (1981: 337).

Material examined.

27♀♀ 8♂♂: Nepal (1♀) , India (10♀♀) , Indonesia (1♀) , Japan (2♀♀ 7♂♂) , Laos (8♀♀) , Malaysia (4♀♀) , Papua New Guinea (1♀) , Taiwan (1♂) .

Type series: lectotype of Henicospilus yonezawanus Uchida , 1928, ♀, Yonezawa, Yamagata Pref., Honshû, Japan, 23.VII.1919, S. Matsumura leg. (SEHU) ; holotype of E. microstriatellus Uchida , 1956, ♂, Sinmura , Amami-ôshima, Kagoshima Pref., Ryûkyûs, Japan, 7.IV.1954, T. Kumata leg. (SEHU) .

Non-type series: 1♀, Godaveri (1,550 -1,700 m), Nepal, IX.1983, M.G. Allen leg. (LT) (Figs 2D , 27 ) ; 10♀♀, Andhra Pradesh, Patanchneru , India, IX.1980, Rhatnagar leg. (LT) ; 1♀, Medan, L. Fulmek , Sumatra, Indonesia (all NHMUK) ; 1♂, Isa (32°8'29.3"N, 130°33'13.7"E), Kagoshima Pref., Kyûshû, Japan, 7.IX.2012, Y. Matsubara & K. Fukuda leg. (MsT) ( NSMT) ; 5♂♂, Isa (32°6'41.8"N, 130°31'38.4"E), Kagoshima Pref., Kyûshû, Japan, 7.IX.2012, Y. Matsubara & K. Fukuda leg. (MsT) ( CNC) ; 1♀, Hiji agricultural road (85 m, 26°43'16.8"N, 128°10'43.4"E), Hiji , Kunigami Vil. , Kunigami County, Okinawa-hontô, Okinawa Pref., Ryûkyûs, Japan, 2-3.VII.2016, S. Shimizu et al. leg. (LT) ( MNHA) ; 4♀♀, Phou Khoun (19.250697 N, 102.254204 E), Luang Phabang, Laos, 21-22.IV.2018, H. Yoshitomi leg. ( EUM) ; 4♀♀, Sala Phou Khoun (19°25'7.57"N, 102°25'41.6"E), Luang Phabang, Laos, 21.IV.2018, K. Yasuda leg. (LT) ( EUM) ; 1♀, Serdang , Malaysia, IX.1979, Khashiyah leg. ; 1♀, Carambola Farm , Serdang, Selangor, Malaysia, XI.1979 ; 2♀♀, Serdang , Selangor, Malaysia, X (1♀) and XI (1♀).1979, I.D. Gauld leg. ; 1♀, Morobe (1,000 m), Wau , Papua New Guinea, X.1979, I.D. Gauld leg. (all NHMUK) ; 1♂, Chihpen , Taitung, Taiwan, 17-18.II.1982, L.Y. Chou & K.C. Chou leg. ( TARI).

Distribution.

Australasian, Eastern Palaearctic, and Oriental regions ( Yu et al. 2016). Newly recorded from Nepal.

Diagnosis.

Head (Figs 2D , 27B-D ): GOI = 2.9-3.2; lower face 0.7-0.8 × as wide as high; clypeus moderately convex in profile, its lower margin impressed; mandible weakly twisted by 10-20°, moderately long, evenly tapered, its outer surface with a diagonal setose groove between its dorsoproximal corner and base of mandibular apical teeth; upper mandibular tooth 1.2-1.5 × as long as lower one; posterior ocellus almost touching eye; antenna with 63-70 flagellomeres and 20th flagellomere 2.0-2.2 × as long as wide.

Mesosoma (Fig. 27E ): mesopleuron punctate to rather closely longitudinally striate; scutellum with lateral longitudinal carinae reaching posterior end and convergent posteriorly; metapleuron punctate to striate; propodeum almost evenly rounded, its posterior area moderately reticulate, outer margin of propodeal spiracle joining pleural carina by a ridge.

Wings (Fig. 27F ): fore wing with AI = 0.3-0.7, CI = 0.2-0.4, ICI = 0.4-0.6, SDI = 1.2-1.3; fore wing vein 1m-cu&M almost evenly curved to very slightly sinuous, 2r&RS almost straight; fenestra and sclerites of discosubmarginal cell of fore wing as in Figure 27F ; fenestra of fore wing not very long and its anterodistal corner distinctly separated from proximal end of vein RS; proximal sclerite triangular, separated from distal one, strongly pigmented; central sclerite absent; distal sclerite absent proximally and weak distally; proximal corner of marginal cell of fore wing uniformly setose; vein 1cu-a antefurcal to M&RS by 0.1-0.3 × 1cu-a length.

Colour (Fig. 27 ): body including interocellar area entirely testaceous; wings hyaline.

Differential diagnosis.

Enicospilus yonezawanus is one of the most common in the Eastern Palaearctic and Oriental regions and more or less distinctive species based on some characters, such as mandibular and clypeal structure, shape of fore wing sclerites, and surface sculpture of mesopleuron, but can be confused with E. kakanicus sp. nov., E. longitarsis , and E. tangi sp. nov. However, E. yonezawanus is distinguishable from E. kakanicus sp. nov. by the complete lateral longitudinal carinae of the scutellum (lateral longitudinal carinae of the scutellum posteriorly absent in E. kakanicus sp. nov., as in Figure 2F ), from E. longitarsis and E. tangi sp. nov. by the scattered spines on the outer fore tibial surface (spines rather dense in E. longitarsis and E. tangi sp. nov.) and the separated proximal and distal sclerites (Fig. 27F ) (proximal and distal sclerites confluent in E. longitarsis and E. tangi sp. nov. as in e.g. Figure 25F ).

Figures

Figure 2. Diagnostic characters for some species of Nepalese Enicospilus. A-D. Outer surface of mandible: A. E. nepalensis Shimizu sp. nov., B. E. tangi Shimizu sp. nov., C. E. tripartitus, D. E. yonezawanus; E-H. Scutellum, in dorsal view: E. E. formosensis, F. E. kakanicus Shimizu sp. nov., G. E. phulchokiensis Shimizu sp. nov., H. E. tangi Shimizu sp. nov.; I, J. Hind tarsal claw: I. E. biharensis, J. E. nikami Shimizu sp. nov.

Figure 25. Enicospilus tangi Shimizu sp. nov., ♂, holotype. A. Habitus; B. Head, frontal view; C. Head, lateral view; D. Head, dorsal view; E. Mesosoma, lateral view; F. Central part of fore wing.

Figure 27. Enicospilus yonezawanus (Uchida, 1928), ♀. A. Habitus; B. Head, frontal view; C. Head, lateral view; D. Head, dorsal view; E. Mesosoma, lateral view; F. Central part of fore wing.