Coeloides ungularis Thomson, 1892 (Figs. 36–38)

Coeloides ungularis Thomson, 1892, Opusc. Ent. 17: 1846; Yang, 1996, Parasitic wasps on bark beetles in China, 23.

Material studied. 1Ψ, CHINA, Shaanxi, Zhouzhi, 9. vi. 1983, Dang Xin­de, No. 831904 (CAFB); 33ΨΨ 7ɗɗ, CHINA, Heilongjiang, Heiwuying forest reserve, 11. vii. 1989, Yang Zhong­qi, ex. Scolytus butovitschi Stark and Scolytus esuriens Blandford (CAFB).

Diagnosis: This species is similar to Coeloides qinlingensis Dang & Yang, but can be separated from the latter by the key mentioned above. It has antennae with 46–48 segments, first flagellomere slightly longer than the second one, weakly protruding apically; second and third flagellomeres strongly flared apico­ventrally; notauli of mesoscutum deep and wide anteriorly, and absent posteriorly; veins 2­SR: SR1 of fore wing = 1: 2.6; first metasomal tergite with narrow and shallow grooves laterally; second metasomal tergite with narrow and deep longitudinal grooves laterally; and ovipositor sheath relatively long, 1.2 times as long as abdomen.

Biology: Parasite of the larvae of Scolytus butovitschi Stark and Scolytus esuriens Blandford of family the Scolytidae (Coleoptera) . The other known hosts are the larvae of Dendroctonus armandi Tsai & Li, Ips spp., Dryophilus pusillus (Gyllenhal), Ips typographus L., Scolytus ratzeburgi Janson Scolytus amurensis Eggers, Scolytus dahuricus Chapuis on Ulmus pumila L. of family the Scolytidae (Coleoptera) (Capek, 1972; Capek et al., 1982; Haeselbarth, 1967; Hedqvist, 1998; Skrzypczynska, 1978; Tobias, 1986; Tobias, 1976; Yang, 1996).

Distribution: China (Heilongjiang and Shaanxi province), Sweden, Germany, Russia, Czechoslovakia, Finland, Poland and France.

Note: Yang (1996) once reported this as a subspecies, Coeloides ungularis watanabei Haeselbarth, in Heilongjiang province of China, but the subspecific name is not adopted in this study.