Eusterinx (Holomeristus) tenuicincta (Förster, 1871)

[SJN: Jyuzuhige-hae-himebachi]

(Figs. 7A–C, 22H, L)

Holomeristus tenuicincta Förster, 1871: 80 .

Mesoleptus fungicola Ashmead, 1894: 50 .

Diagnosis. Eye covered with a few indistinct setae. Inner eye orbit not strongly convergent ventrally (Fig. 7B). Malar space 0.2–0.25 times as long as basal width of mandible. Antenna with 16 flagellomeres. Notaulus sharp and distinct, reached to the centre of mesoscutum (Fig. 22H). Mesopleuron with longitudinal striae ventrally. Propodeum without a pair of spine-like apophysis (Fig. 7A). Anterior transverse carina of propodeum complete. Area superomedia of propodeum elongated and slightly narrowed posteriorly (Fig. 22L). Fore wing with an areolet (Fig. 7A). T II longitudinally striated. T II and T III each not divided into two parts by a transverse groove (Fig. 7C). Ovipositor upcurved (Fig. 7A), 0.2–0.3 times as long as hind wing. Clypeus and mandible tinged with yellow (Fig. 7B). Hind coxa and femur reddish brown (Fig. 7A). Pronotum and posterior parts of T II and T III sometimes tinged with reddish brown.

Material examined. JAPAN: EUM, 2 F, Hokkaido. Sapporo City, Hitsujigaoka, 11–18. VII. 2011, K. Konishi leg. (MsT) ; NARO, 2 F, Hokkaido, Sapporo City, Jozankei, 20–31. VII. 1989, K. Maeto & M. Sharkey leg. (MsT) ; NARO, 2 F, ditto, 21–29. VIII. 1989; NARO, 3 F, ditto, 29. VIII. – 12. IX. 1989; NARO, F, ditto, 12–21. IX. 1989; EUM, 1 M, Hokkaido, Yuni, Kuobetsu-gawa R., 2–12. VII. 2007, N. Kuhara leg. (MsT) ; EUM, 4 F, Hokkaido, Bifue, Kusabue-rindo, 17. VIII. – 1. IX. 2012, N. Kuhara leg. (MsT).

UNREADABLE LOCALITY DATA: ZISP, F (det. Rossem), 20. VIII. 1980, Kasparyan leg.

Distribution. Japan (Kunashiri Is., Hokkaido and Honshu); widely distributed in Holarctic region (Yu et al., 2016).

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