Key to the Chinese species of Chlamydatus Curtis

1 Body length shorter than 2.00 .............................................. C. pachycerus Kiritshenko

­ Body length more than 2.10 .......................................................................................... 2

2 Fore­ and middle femora entirely yellow, never basal infuscation, hind femora dark brown to nearly black, pale distally, in marked contrast to fore­ and middle femora (Fig. 17) .................................................................................... C. sichuanensis sp. nov.

­ Coloration of femora not as above, coloration of hind femora not strongly contrasting with that of fore­ and middle femora (Figs. 13–16)...................................................... 3

3 Femora yellow, with dark spots (Fig. 13); phallotheca with a lobelike projection dorsally (Fig. 19) ................................................................................ C. laminatus sp. nov.

­ Femora dark, with pale distal bands or not (Figs. 14–16); phallotheca not as above ... 4

4 Smaller species, length less than 2.40; vesica tapering towards apex (Fig. 24); apical portion of phallotheca tapered (Fig. 25) ............................................. C. pullus (Reuter)

­ Larger species, length longer than 2.65; vesica greatly elongated and not tapering towards apex (Fig. 21); apical portion of phallotheca greatly elongate and slender (Fig. 22) ................................................................................................. C. pulicarius (Fallén)