Hymenura nigra ( Heinrich, 1930 )

Kikuchi, Namiki, 2021, The first record of Hymenura Townes, 1965 (Hymenoptera: Ichneumonidae) from Japan, Zootaxa 5040 (2), pp. 296-300 : 297-299

publication ID	https://doi.org/ 10.11646/zootaxa.5040.2.9
publication LSID	lsid:zoobank.org:pub:74A14C6A-3D55-4358-BB70-10E5858FE271
persistent identifier	https://treatment.plazi.org/id/AD5C87E0-6F7B-FFD8-7EB4-FE863944FD2B
treatment provided by	Plazi
scientific name	Hymenura nigra ( Heinrich, 1930 )
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Treatment

Hymenura nigra ( Heinrich, 1930) View in CoL

( Figs 1–3 View FIGURE 1 View FIGURE 2 View FIGURE 3 )

Neopyga nigra Heinrich, 1930: 546 , ♀, Type locality: “Sutschansk, Sibirien” [= Partizansk , Primorsky Krai, Russia] Hymenura nigra: Townes et al, 1965: 426 View in CoL ; Jeong & Lee, 2008: 17–19, ♀ ♂ ; Tereshkin, 2009: 1374–1375, ♀.

Specimens examined: [Honshû] Saitama Pref.: 1♀, Chichibu City, Onagata, 24–26. VIII. 1995, A. Shimizu ( KPMNH

[ KPM-NK 55272], Fig. 2C View FIGURE 2 ). Tokyo: 1♀ , Mt. Takao , 22. IX. 1963, J. Minamikawa ( NIAES, Fig.1B View FIGURE 1 ). Toyama Pref.: 1♀ ,

Toyama City, Kamegai , alt. 330 m, 15–26. IX. 2009, MT, M. Watanabe ( KPMNH [KPM-NK 55273], Fig. 3C View FIGURE 3 ). Shi-

zuoka Pref.: 1♀, Dainichi-toge, 16. VI. 1957, J. Minamikawa ( NIAES). [Kyûshû] Kagoshima Pref.: 1♀, 32º8’28.9” N ,

130º33’15.1” E, Isa City, 7. IX. 2012, MT, Y. Matsubara & K. Fukuda ( KPMNH [KPM-NK 55274], Figs. 1A View FIGURE 1 , 2A, D–G View FIGURE 2 ,

3A, B View FIGURE 3 ). [Yakushima Is.] 1♀, Han’yama, alt. 250 m, MT, T. Yamauchi et al. ( KPMNH [KPM-NK 55275], Fig. 2B View FIGURE 2 ) .

Description of intraspecific variation. Whitish yellow marks on head: present as a pair of marks on vertex ( Fig. 2C View FIGURE 2 ); a pair on vertex and a pair on clypeus ( Fig. 2A View FIGURE 2 ); on vertex, supra-clypeal area, clypeus and gena ( Fig. 2B View FIGURE 2 ) [both of HT ( Tereshkin, 2009) and Korean specimens (Jeong & Lee, 2008) have only a pair of marks on vertex]. Whitish yellow marks on mesosoma: present only as a small mark on posterior edge of scutellum; present on collar and posterodorsal margin of pronotum, subalar ridge ( Figs 2E, F View FIGURE 2 ) and a large mark on scutellum [both HT and Korean specimens have marks on collar and posterodorsal margin of pronotum, subalar ridge and scutellum]. Areolet: varies from quadrangular (anteriorly pointed, Fig. 2G View FIGURE 2 ) to pentagonal (anteriorly truncate) [both HT and Korean specimens have pentagonal areolet]. White mark on hind tarsus: varies from completely lacking ( Fig. 1B View FIGURE 1 ) to most of 2 nd tarsomere and whole of 3 rd and 4 th tarsomeres [both HT and Korean specimens have white mark on apex of 1 st tarsomere and whole of 2 nd to 4 th tarsomeres].

Description of female sternites ( Fig. 3C View FIGURE 3 ). Laterosternites of S2–5 separated from median sternites by crease; laterosternites of S2–4 strongly sclerotized, S5 weakly sclerotized. Sclerites of median S2–4 separated by median membrane, S5 and 6 not separated; sclerite of median S2 with wide weakly sclerotized area and rounded sclerotized area, opposite to thyridium and para thyridium respectively. S6 (hypopygium) with apical margin weakly protrude.

Distribution: Japan (Honshû, Kyûshû and Yakushima Is.); Korea, Russia.

Remarks. This is the first record of this species from Japan.