1904. ] Catalogue of the Coleoptera of South Africa. 31 
the male, but not in the female; basal joint of hind tarsi much 
longer than the second ; the double row of bristles lining the inner 
part of the hind tibiz very long and closely set. 
Evidently allied to Trzodonta, but distinguished by the extra- 
ordinary shape of the anterior tarsi of the male. 
The four South African species included in this genus are so 
closely allied that their identification is very difficult. 
Key to the Species. 
A3. The longer spur of the hind tibie half the length of the basal 
tarsal joint. : 
Whole body light testaceous 50 (OG =00 100 |G | ber wom Foe RORIHODS. 
Head and abdominal segments fuscous .. .. .. .. .. «. Yrhodesiana. 
A?. Spur of the hind tibiz one-third of the length of the basal tarsal joint. 
Body somewhat elongato-ovate .. .. .. .. .. .. «. «. modesta. 
A‘. Spurs of hind tibizw very short, especially in the male. 
Wholly pale testaceous or fusco-testaceous  .. .. .. .. .. sebakuana. 
EURONYCHA SERICANS, Fahr., 
Insect. Caffr., ii., p. 140. 
Very pale testaceous, but the clypeus testaceous, the whole body 
is covered with a whitish silky appressed pubescence; clypeus with 
a faint suture at the junction with the head, diagonally narrowed 
laterally from the base to the anterior part where it is only half 
the width of the base, arcuately emarginate in front with the outer 
angles moderately sharp, eyes large, canthus not deep; prothorax 
moderately convex, deeply punctured, the punctures equi-distant and 
bearing each a silky appressed hair; scutellum sharply ogival, 
deeply punctate; elytra very little ampliated laterally, slightly 
convex in the posterior part and rounded at apex, plainly striate 
although the striz are not deep, intervals plane, closely punctured ; 
anterior tarsi of the male short, joints triangular dilated outwardly, 
and increasing in width from the basal to the ante-penultimate one 
and wider than long, last one as long as the three preceding taken 
together, claws moderately divaricating, laminato-lobate underneath 
for half the length, and produced thence into a fine hook; inter- 
mediate and posterior ones deeply cleft, the upper tooth longer and 
more slender than the lower; anterior tibizw tri-dentate; abdomen 
very compressed laterally ; pygidium triangular, slightly convex; the 
