Spilopteron fuscomaculatum Wang, 1988

(Fig. 3)

Spilopteron fuscomaculatum Wang, 1988 . Acta Zootaxonomica Sinica, 13(3): 300. Holotype: ♀, China: Guangxi (IOZAS).

Material examined. Vinh Phuc Province, Tam Dao NP: 1♀ 1♂ (OMNH), 30.v. 1997, 500 m a.s.l., hand net, Y. Arita et al. leg.; 1♂ (OMNH), 1.vi.1997; 2♂ (OMNH), 2.vi.1997, 500– 1000 m a.s.l., hand net, R. Matsumoto leg.; 4♂ (OMNH), 5.v.1998; 1♀ (OMNH), 7.v.1998; 1♀ 2♂ (OMNH), 8.v.1998, 900– 1200 m a.s.l., hand net, R. Matsumoto leg.; Vinh Phuc Province, Tay Thien: 1♀ (IEBR), 18.v. 2004, 500 m a.s.l. T.V. Hoang leg.

Distribution. Previously known from China (Wang, 1988), these are the first records of this species from Vietnam.

Remarks. The black spot below the fore wing pterostigma is distinct, weakly present or even absent in Vietnamese specimens, otherwise agreeing with the holotype female.