Copelatus weymarni J. Balfour-Browne, 1947

(Figs 25, 62–66)

Copelatus weymarni J. Balfour-Browne, 1947: 440; Zeng 1989: 6 (Shanghai); Li 1992: 35 (Liaoning); Nilsson 1995: 42 (Hebei: Beidaihe).

Type locality. “Manchuria: Djalantun” [China, Nei Mongol, Zalantun, ca. 48°00′N 122°44′E] .

Type material. Holotype ♂, deposited in BMNH (not studied).

Material examined. CHINA: Liaoning: 1 ♂, 92 km SE Benxi, 200 m, 29.ix.1994, Ji & Wang leg. (NHMW) ; Shanghai: 6 spec., Shanghai (IZCAS) .

Diagnosis. Medium sized (TL: 5.1–5.5 mm), oblong-oval species. Head reddish-brown, clypeus somewhat paler – testaceous; pronotum reddish-brown with broadly testaceous anterior margin and lateral sides; elytra dark brown, basal margin and especially lateral sides paler – testaceous. Pronotum with short longitudinal strioles laterally. Each elytron with six complete discal striae and one submarginal stria: all striae beginning at base and ending close to apex, only stria 6 shorter and ending at apical fourth; submarginal stria long, beginning at about elytral mid-length (Fig. 25). Median lobe of aedeagus in lateral view sickle-shaped with apex slightly turned dorsally, with large irregular process on dorsal side near mid-length (Fig. 65). Parameres moderately broad, ‘C’-shaped; apex rather slender; apical lobe long, club-shaped (Fig. 66). Female similar to male, strioles on pronotum more numerous.

Distribution. A species described from Inner Mongolia (not Heilongjiang, as stated by Nilsson 1995), and subsequently recorded also from Hebei, Shanghai and Liaoning in northeastern China (Zeng 1989, Li 1992, Nilsson 1995) (Fig. 83). In addition to China, C. weymarni occurs in the Far East of Russia, Japan and Korea (Satô 1985, Nilsson 1995, Park et al. 2008).