1896.] • of the Coleopteia of SoiU/i Africa. 545 



Mentuni with a sharp median tootli ; iiiaxillee hooked at tip ; 

 intermediate joints of antennae elongato-quadrate ; anterior tibise 

 without any terminal outer spines Ejcocus. 



Mentum with a sharp median tooth ; body convex, ovate ; 

 prothorax with very indistinct median and posterior basal groove. Cyiiomoscelis 



Mentum with a short, bifid median tooth ; antennae very 

 slender and short ; head broad, body robust ; anterior tibiae with 

 two terminal outer spines. 



Anterior tarsi of male dilated PtcrosHclius. 



Anterior tarsi of male not dilated Teratotarsus. 



Body broad, depressed ; antennae short ; mandibles long, plane, 

 and projecting ; elytra with a basal stria between the first and 

 second intervals on each side PJiatliynius. 



Gen. ABACETUS, Dej., 

 Spec. Col., iii., p. 195. 



Mentum short, with a broad triangular median tooth as long as 

 the two lateral lobes and bearing a long seta on each side of the 

 basal part, the lateral lobes oblique outwardly, very sharp at tip, 

 and slightly notched outwardly ; ligula long, slightly triangular, 

 broadest and slightly sinuate at tip, bisetose ; paraglossse half as 

 long, moderately slender, disunited from the ligula near the apex ; 

 maxillae curved, very sharp, outer lobe also much acuminate at tip ; 

 last joint of palpi fusiform, acute at tip or truncate ; antennae 

 reaching beyond the shoulders, the three basal joints glabrous, 

 the others pubescent, a little compressed, the apical ones slightly 

 broader than the intermediate ones ; head elongate ; eyes moderately 

 prominent and with two supra-orbital setas ; labrum transverse, 

 subquadrate, frontal sulci more or less deep and arcuate ; prothorax 

 variable in shape, with a deep supra-marginal lateral groove, a 

 median longitudinal one, and a basal one on each side not reaching 

 the median part ; elytra oblong or oblongo-parallel, sinuate laterally 

 behind not much convex, striate but without any scutellary stria, 

 and having in the third interval a distinct puncture ; legs moderately 

 long, tibiaB carinate or grooved inwardly ; carination of the tarsi 

 variable, claws large, slender, simple ; the three basal joints of the 

 anterior tarsi of the male moderately dilated, squamulose and hairy 

 underneath, fourth joint not incised. 



Hab. The genus has representatives in Europe, Morocco, Egypt, 

 Africa (Senegal, White Nile, Guinea, Gaboon, Sierra Leone, Mozam- 

 bique, Angola), Madagascar, India, Burmah, Siam, Ceylon, Australia, 

 and South America (Martaban). 



Synopsis of Species. 



Intermediate and posterior tarsi plurisulcate on the upper part. 

 Inner spur of the anterior tibiae trifid. 



Black ; frontal sulci hardly distinct ; prothorax and intervals of 

 elytra finely punctured imUistris. 



