Yezoceryx umaculosus Wang, 1982

Achterberg, Cornelis Van, 2017, First record of the genus Yezoceryx Uchida (Ichneumonidae: Acaenitinae) from Vietnam, with descriptions of nine new species, Zootaxa 4311 (3), pp. 345-372 : 368-369

Yezoceryx umaculosus Wang, 1982

( Figure 17 )

Yezoceryx umaculosus Wang, 1982b: 204 . Holotype: ♀, China: Yunnan ( IZCAS).

Diagnosis. Yellow with black marks; mesoscutum with U-shaped black mark; scutellum usually with black spot posteriorly; first tergite about 1.4–1.6× as long as its apical width; first sternite with anteriorly projecting hook; ovipositor about 1.8× length of hind tibia.

Material examined. Vinh Phuc, Tam Dao NP: 1♀ ( IEBR), 2.vi.1997, 900– 1000 m a.s.l. ; 1♂ (OMNH), 7.v.1998, 3♂ (OMNH), 8.v.1998, hand net, R. Matsumoto leg.; Ninh Binh, Cuc Phuong NP: 1♂ ( OMNH), 26.iv.1998 ; 1♀1♂ (OMNH), 27.iv.1998, 200– 300 m a.s.l., hand net, R. Matsumoto leg.; Thua Thien Hue , Phong Dien NR: 5♀ 8♂ ( RMNH, IEBR), 15 km W Phong My, 23.iii–6.iv.2001, 80– 210 m a.s.l. ; 1♀ 2♂ ( RMNH), 12 km W Phong My , 24.iii-6.iv.2001, 60 m ; 1♀ ( RMNH), 15 km W Phong My , 23.iii–6.iv.2001, 50– 60 m a.s.l. ; 1♀ ( RMNH), 19 km W Phong My , 23.iii-6.iv.2001, 50- 100m ; 1♀ ( RMNH), 15 km W Phong My , 23.iii–6.iv. 2001, 150m, Malaise trap, C. v. Achterberg & R. de Vries leg. ; Thua Thien-Hue, Nam Dong, Thuong Lo : 1♂ ( IEBR), 1-4.ix.2005, Malaise trap, T.Q. Nguyen leg. ; Hoa Binh, Xa Linh, Pa Co : 1♂ ( IEBR), 23.iv.2002, 1100 m a.s.l., hand net, T.V. Hoang leg. ; Bac Can, Ba Be NP: 1♂ ( OMNH), 1.v.2006, 20.23 0 N 105.37 0E, 200 m a.s.l., R. Matsumoto leg.

Distribution. Previously known from China (Yunnan Province) ( Wang, 1982b), these are the first records of this species from Vietnam.

Figures

FIGURE 17. Yezoceryx umaculosus Wang from Thuong Lo, Nam Dong, Thua Thien-Hue Province, Vietnam: a. dorsal view of head and mesoscurum; b. face.