Species dealt with in this paper are in bold.

1. Propodus of P.2 not flattened, without an antero-ventral tooth and without pubescent grooves. Anterior margin of fourth antennal segment with two teeth or with one large and a few serrations.............................................................................. 2

— Propodus of P.2 flattened, with a distinct anteroventral tooth and with two pubescent grooves on the outer surface. The short hairs on the body with a golden sheen.................................................................................................. C. aureus n. comb.

2. Pleura of abdominal somites II to IV ending in a sharp posteriorly directed point. Palm of P.3 more than twice as long as high. Abdominal somites II to V of the living animal of a rather uniform reddish brown colour; without conspicuous transverse rows of round spots........................................................ C. cultrifer n. comb.

— Pleura of abdominal somites II to IV bluntly topped, not ending in a sharp point. Palm of P.3 less than twice as long as high. Dorsal surface of the abdominal somites II to V each with two transverse rows of two or four rounded dark red spots.............................................................................................................. C. crosnieri n. sp.