Xanthopimpla stemmator (Thunberg, 1824)

Pham, Nhi Thi, Broad, Gavin R., Matsumoto, Rikio & Wägele, Wolfgang J., 2011, 3056, Zootaxa 3056, pp. 1-67 : 33

Xanthopimpla stemmator (Thunberg, 1824)

Ichneumon stemmator Thunberg, 1824 . Mem. Acad. Imp. Sci., St. Peterbourg , 8: 262. Holotype: ♂, China (UUZM). Xanthopimpla stemmator: Roman (1912) .

Diagnosis. Hind side of head with two black spots; hind tibia with 9–11 preapical bristles; propodeum and metasomal tergites each with two black spots (except tergite 6 entirely yellow); ovipositor sheath about 1.1x hind tibia.

Distribution. Previously recorded from North, Central and South Vietnam by the Plant Protection Research Institute (1976), Pham (1997) and Pham & Le (2007). Outside Vietnam, X. stemmator is known from Pakistan, China, India, Sri Lanka, Laos, Thailand, Malaysia, Singapore, Indonesia, the Philippines, Taiwan, Japan, Mauritius and South Africa ( Yu et al. 2005).

Remarks. In Vietnam, this species has been reared from pupae of Chilo suppresalis ( Lepidoptera : Pyralidae ) on rice ( Pham 1997). Xanthopimpla stemmator has been extensively studied for its potential as a biocontrol agent against lepidopteran pests of rice.

Material examined. Hoa Binh, Yen Thuy, Lac Thinh : 1♀ ( IEBR), 10–20.iv.2002 ; 1♂ ( IEBR), 10–20.viii.2002, L. D. Khuat leg. ; Ha Noi, Thach That, Tan Xa : 1♂ ( IEBR), 25.vii–05.viii.2002 ; 1♀ ( ZFMK), 05–15.viii.2002, L. D. Khuat leg. ; Thai Nguyen, Cat Ne, Dai Tu : 1♀ 1♂ ( IEBR), 15–20.xi.2006, L. D. Khuat leg. ; Phu Tho, Xuan Son NP: 1♂ ( IEBR), 300 m a.s.l, 24.ix.2005, T. V. Hoang leg. ; Nghe An, Pu Mat NP: 1♀ 3♂ ( IEBR), 250 m a.s.l, 12.ix.2005, N. T. Pham leg. ; Thanh Hoa, Thuong Xuan, Tan Thanh : 1♂ ( IEBR), 01.vi.2008, T. V. Hoang leg. ; Dong Nai, Cat Tien NP: 1♀ ( RMNH), 100 m a.s.l, 03–08.x.2005, R. de Vries leg.