Agrisius similis Fang, 1991

(Figs 23–26, 38, 46)

Agrisius similis Fang, 1991, Acta Entomologica Sinica, 34 (4): 470 (Type locality: “ Jiping [Jinping], Yunnan, 1700m ”).

Material examined. CHINA: 1 male, 1 female, Yunnan, Yunglong, Fengshuining Mts., 13 km N of Caojian, 2460 m, 20. V.–9. VI.1999, leg. Dr. Ronald Brechlin; 1 male, 2 females, Yunnan, Dali Bai aut. pref. Yunlong, 13 km N of Caojian, Fengshuining Mts., 2460 m, 10–23. VI.1999, leg. Dr. Ronald Brechlin; 1 female, Yunnan (NW), Nuijang Lisu and Dulong auton. pref., Fugong county; Lishadi (= Walo), 42 km N of Fugong, 1390 m, 12–16. V.1999, 27.15°N / 98.55°E, leg./ex coll. Dr. R. Brechlin (all in MWM / ZSM); 1 male, E Yunnan, Baiyanzishan, Yuanyang, 2900m, V.2000, gen. prep. No.: AV1750 (SZMN); NORTH VIETNAM: 424 specimens of both sexes, Mt. Fan-si-pan, W side, Chapa, 22°20′N, 103°40′E, sec. forest, 1600–1800 m, 10. VI.–6.VII.1994, Sinyaev & local collectors leg.; 101 specimens of both sexes, the same locality as previous but 30. VI.–12.VII.1994, Brechlin & Schintlmeister leg.; 49 specimens of both sexes, the same locality as previous but V.1995, local collectors leg.; 12 specimens of both sexes, the same locality as previous but IX.1994, Mong leg.; 25 specimens of both sexes, the same locality as previous but III.1995, V. Sinyaev leg.; 1 male, 2350 m, Mt. Fan-si-pan (North), Cha-pa, primary cloud forest, 22°15′N, 103°45′E, 28–30.X.1994, Sinyaev & local collectors leg.; 192 specimens of both sexes, Mt. Fan-si-pan, Cha-pa, 22°15′N, 103°46′E, 8–29. V.1993, 2400 m, NN, Sinjaev & Simonov leg.; 87 specimens of both sexes, Mt. Fan-sipan, Cha pa, 1700 m NN, 22°15′N, 103°46′E, 5–29. V.1993, Sinjaev & Simonov leg.; 118 specimens of both sexes, the same locality as previous but VI.1994, Sinyaev & local collectors leg.; 25 specimens of both sexes, 1600 m, Mt. Fan-si-pan (Nord), Cha-pa, primary forest, 22°17′N, 103°44′E, 20–30.IV.1995, leg. V. Sinyaev & local collectors leg.; 1 male, Mt. Fan-si-pan, N-Seite, Cha-pa (= Sapa), 1525 m, 22°17′N, 103°40′E, primary forest / agricult., 7, 10.VII.1994, leg. Brechlin & Schintlmeister; 9 specimens of both sexes, Tam-Dao, (secondary forest), 60 km NW Hanoi, 950 m, 21°34′N, 105°20′E, IV.1995, leg. Sinjaev; 1 male, 1400 m, Mai-chau, primary forest, 40 km SE Moc-Chau, 20°50′N, 104°50′E, 07–15.IV.1995, leg. Sinyaev & local collectors leg.; 2 males, 1200 m, Tuan-giao, street Lai-chau to Hanoi, 21°35′N, 103°25′E, secondary vegetation, Schintlmeister leg. (all in MWM / ZSM); 1 female, Lao Cai, Sapa, 20. VI.1999, gen. prep. No.: AV1669 (SZMN).

Diagnosis. The forewing length is 25.0–26.0 mm in males and 26.0–28.0 mm in females. Agrisius similis differs clearly from other congeners in its large size (the largest in the group), and thin pattern elements of the forewing (the thinnest in the group). The male genital capsule of the species differs from other congeners in the narrow basal plate of the uncus (the narrowest in the species-group), and the large dorsal process of the sacculus which is significantly longer than and curved parallel to the ventral process. The female genitalia of the species are characterised by the short, semi-circular postvaginal plate, the straight margin of the ostium bursae, and the long ductus bursae (the longest in the species-group).

Distribution. The species is known from South-West China (Yunnan) (Fang 1991; Dubatolov et al. 2012) and North Vietnam (Dubatolov & Kishida 2013).