Yezoceryx purpuratus Sonan, 1936

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 : 360

Yezoceryx purpuratus Sonan, 1936

( Figure 11 )

Yezoceryx purpuratus Sonan, 1936: 250 . Holotype: ♀, Formosa: Mekaran in Chikuto-gun in Shinchiku Prefecture ( TARI).

Diagnosis. Blue purple; occipital carina down-curved dorsally; clypeus without median tooth, apical margin distinctly up-curved; propodeum with dense, irregular wrinkles; metasomal first tergite about 2.0× as long as its apical width; first sternite with anteriorly projecting hook; ovipositor 3.6–4.0× as long as hind tibia.

Material examined. Vinh Phuc, Tam Dao NP: 1♀ ( OMNH), 3.v.1998 ; 1♀ (OMNH), 4.v.1998, 900– 1000 m a.s.l., hand net, R. Matsumoto leg.; 1♀ ( IEBR), Hoa Binh, Mai Chau, Tan Son , 20–25, v.2009, 850– 900 m a.s.l., Malaise trap, L. D. Khuat leg.

Distribution. Previously known from Taiwan ( Sonan, 1936), these are the first records of this species from Vietnam.

Remarks. The Vietnamese specimens have partly yellow inner orbits (at the level of the upper face).

Figures

FIGURE 11. Yezoceryx purpuratus Sonan from Tam Dao NP, Vinh Phuc Province: a. lateral view; b. face; c. dorsal view of head; d. dorsal view of mesonotum; e. dorsal view of propodeum.