1. O. czernyi (Duda, 1918)

(Fig. 1)

Limosina (Scotophilella) Czernyi Duda, 1918: 123 [male, illustr.]. Type locality: Austria, Admont .

Leptocera (Scotophilella) Czernyi. — Duda, 1925: 156 [generic combination].

Limosina (Limosina) Czernyi. — Duda, 1938: 117 [subgeneric combination, redescription, illustr.].

Opalimosina (Hackmanina) czernyi .— Roháček, 1983: 143–144 [generic combination, redescription, phylogenetic notes]; Roháček, 1985: 162–163 [illustr.].

Limosina czernyi .— Papp, 1984: 97 [Palaearctic catalog].

Limosina (Scotophilella) Lambi Duda, 1928: 143 [both sexes]. Type locality: England, New Forest . [synonymy].

Leptocera (Limosina) lambi .— Richards, 1930: 294 [generic combination].

Opalimosina (Hackmanina) czernyi .— Hayashi, 2010: 309–319 [diagnosis, illustr.].

Opalimosina (Hackmanina) czernyi .— Dong, 2016: 52–81 [illustr.].

Diagnosis: An additional small inclinate setula present between inner occipital bristles and outer occipital bristles; mid femur basally with a group of setae (Roháček, 1985, Fig. 983); hind tibia without ventral preapical spur; S5 posteromedially with a large oval area, densely covered by small blunt cuticular projections (Roháček, 1985, Fig. 1001).

Material examined: CHINA: Liaoning: Fushu: 1♂, Donggualingcun, 1232 m, 10.vii.2022, Tao Li (M); 1♂, Laotudingzi, 1376 m, 28.v.2022, Tao Li (M). (all EMCAU) .

Comments: O. czernyi (Duda) is reported as a widespread Palaearctic species. Chinese records of this species are from Liaoning and Zhejiang previously (Cong et al., 2017; Dong et al., 2016). The record from Zhejiang suggests that it distributes in Oriental region, too. It is the only Opalimosina known from China that lacks hind tibial spur.