Key to the species of Scaphidium grande -complex

1. Mesofemora and metafemora black with reddish fascia ............................. 2

– Mesofemora and metafemora totally black without reddish fascia ............. 6

2 Distinctly elongated body form; male profemora slender (Fig. 22), FW/ FL=0.14. Habitus (Figs 4, 5), aedeagus (Figs 19, 20). BL: 7.5–9.9 mm. China (Hainan) ................................................................................. S. longum

– Stout body form; male profemora stout, FW/FL>0.155............................ 3

3. Smaller body size, BL<7.4 mm; male profemora (Fig. 26) with an acute angle at apical third, protibiae (Fig. 26) with a blunt angle before apical angle. Habitus (Figs 6, 7), aedeagus (Figs 23, 24). 5.9–7.3 mm. China (Anhui).... S. spinatum

– Larger body size, BL> 8.4 mm .................................................................... 4

4. Wider body form, PL/PW of male no more than 0.75, PL/PW of female no more than 0.69; lateral sides of pronotum shallowly incurved near antebasal row of punctures; male protibia incurved................................................... 5

– Narrower body form, PL/PW of male: 0.79–0.84, PL/PW of female: 0.75– 0.77; lateral sides of pronotum almost straight near antebasal row of punctures; male protibia (Fig. 18) almost straight. Habitus (Figs 1–3), aedeagus (Figs 14–16, also see Fig. 71 in Löbl, 1992 and Fig. 10 in He et al., 2008). BL: 8.4–9.4 mm. China (Yunnan, Guangxi, Guangdong, Fujian, Hunan, Guizhou, Sichuan, Chongqing, Hainan, Taiwan), Burma, India, Indonesia, Laos, Malaysia, Thailand, Vietnam ................................................ S. grande

5. Male profemora strongly swollen at basal 2/3 forming a blunt angle at apical third, protibiae = 2.8 mm (Fig. 30). Habitus (Figs 8, 9), aedeagus (Figs 27, 28). BL: 8.9–9.4 mm. China (Yunnan).......................................... S. laxum

– Male profemora not swollen, protibiae = 3.6 mm (Fig. 34). Habitus (Figs 10, 11), aedeagus (Figs 31, 32). BL: 10.1 mm. China (Yunnan) .... S. inflexitibiale

6. Last antennal segment (Fig. 41) light brown in about apical third. Habitus (Fig. 2 in He, 2009, regarded as S. dureli), aedeagus (Figs 39, 40). BL: 8.0– 9.1 mm. China (Xizang).............................................................. S. liui

– Last antennal segment (Fig. 37) entirely blackish. Habitus (Figs 12, 13), aedeagus (Figs 35, 36). BL: 6.8–9.5 mm. China (Guizhou) .................. S. reni