Descriptive Catalogue of the Coleo2')tera of South Africa. 245 
looking as if divided into two ; mandibles robust, sharply falcate ; labrum 
moderately short, scooped in the centre ; head sub-quadrate, frontal part 
strongly sloping, gibbose ; prothorax longer than broad, with the anterior 
part strongly attenuate and sloping, and the posterior one con,vex ; base 
plainly marginate ; scutellum broadly triangular, but sub-truncate at apex ; 
elytra elongated, sub-parallel, plane past the basal part ; bi-costulate on 
each side, but with the two costse and two other intervening ones highly 
carinate in the basal part for about one- fourth of the length in the ^ ; in 
the $ these intervening costae are not much more raised than the costules: 
five visible abdominal segments in both sexes, the apical one much nar- 
rower in the than in the $ ; legs moderately long ; tarsi with the inter- 
mediate joints very broadly triangular and deeply incised in the ^ , more 
elongated and narrower in the ? ; claws double, the upper tooth strong, 
compressed and dilated at the base, bent almost at right angles there, the 
lower claw in the shape of a stiff bristle ; outer spur of hind tibiae sub- 
spatulate, short, inner one not longer than the outer, moderately acute. 
Few Coleoptera vary more in colouration than the species included in 
this genus. This variation is not restricted to sex only. It is quite 
possible that one of the South African species may prove identical with 
E. rufa, of the Guinea coast. Several species have been described from 
German and British East Africa, and one from Somaliland. 
Key to the Species. 
A^. Prothorax very closely and roughly punctate all over in both sexes. 
Black, with the vertex, a small patch on each side of the prothorax, 
the anterior half of the elytra and the legs yellow s ; elytra black in 
the ? , more or less broadly marginated with cinnabar posticalis. 
Totally black in the male with the exception of the vertex, which is 
yellow var. a. 
A^ Prothorax finely and closely punctulate on the attenuate part and 
almost smooth in the posterior ( c? ) , less sparsely punctulate in the ? . 
Black, with the palps, labrum and vertex and a lateral patch on each 
side of the prothorax yellow ( c? ), elytra cinnabar red, with a more or 
less broad, median black band on each side (?) walilbergi. 
Body totally black, with the exception of the labrum which is 
flavescent var. moerens. 
Black, with a lateral yellow patch on the prothorax ; labrum, legs, 
and whole abdomen yellow var. nigriceps. 
Pectus, anterior frontal part and antennee black ; abdomen, legs, 
vertex, prothorax with the exception of a median black band, 
yellow, the elytra from the base to past the median part cinnabar 
red or yellow ; posterior part of elytra black ; 9 , elytra cinnabar 
red with a broad, longitudinal fuscous band ; legs black . . . , . , cardinalis. 
