1896.] of the Coleoptera of South Africa. 397 



Gen. TiENIOLOBUS, Chaud., 

 Bull. Mosc, 1855, i., p. 30. 

 DisTiCHus, Motsch. 



Lobes of mentum with an intramarginal and nearly straight 

 carina ; maxillae straight, curved at tip and very sharp, last joint of 

 maxillary and labial palpi longer than the preceding one and sub- 

 compressed ; labrum very short, trilobate ; antennae reaching the 

 posterior angle of the prothorax, basal joint slightly arcuate, clavi- 

 form, as long as the two following, the second, third, and fourth 

 small, the others quadrate, gradually increasing in size from the fifth 

 to the last, which is the thickest, and obtusely rounded at tip ; head 

 quadrate, with two long impressions ; prothorax angular laterally 

 behind, median part of the base sinuate, not produced behind ; elytra 

 very little convex or depressed, elongate, winged or not, shoulders 

 dented ; legs moderately long. 



The genus is represented in South America, Europe, Africa (Sene- 

 gal, White Nile, Grand Bassam), and India. 



Synopsis of Species. 



Elytra subcylindrical, three punctures on the posterior part of 

 third interval ; prothorax without any basal angle ; elytra with 

 rounded shoulders ; clypeus quadridentate hicidus. 



Elytra quite plane, four punctures on the third stria ; no wings . . depressus. 



Elytra a little convex, three punctures on the third stria ; wings , . picicornis. 



Elytra convex, no humeral angle, two punctures in the posterior 

 part of the third stria nitidulus. 



TiENiOLOBus LuciDus, Chaud., 

 Monogr., loc. cit., 1880, p. 12. 



Shiny ; head broad, transverse, lateral impressions deep, short, 

 ending in a narrow line that reaches the median part ; clypeus quadri- 

 dentate in the middle of the anterior part ; prothorax subparallel 

 laterally, a little broader than the head, broader than long, posterior 

 angle rounded and without any trace of the small angular tooth ; 

 elytra elongato-ovate, not quite parallel laterally, without any 

 humeral angle, convex, deeply punctato- striate with the intervals 

 moderately convex, the seventh one although not carinate overhangs 

 a little the following one, third interval with three broad setigerous 

 punctures on the posterior part, basal part granulose, outer margin 

 smooth ; anterior tibiae unidentate above the digitation, intermediate 

 ones serrate and with one apical tooth, posterior ones not dentate. 

 Length 15^ mm. ; width If mm. 



Hab. Lake N'Gami, teste De Chaud. 



