1900.] Catalogue of the Colcoptera of South Africa. 73 



obliquely from there to the base where the upper carina is 

 produced in a sharp recurved angle ; elytra extremely shagreened, 

 with the grain running lengthwise, narrowly but deeply striate, and 

 plicate at middle on the second interval ; pygidium roughly sha- 

 greened ; metasternum produced in a moderately sharp triangular 

 process, closely granulose all over and having a deep transverse 

 impression at base, and an elongate one at a short distance from the 

 apical process ; anterior legs neither ampliate nor emarginate 

 inwardly, tooth of anterior femora set nearer to the apex than to 

 the median part ; anterior tibiaB not dilated inwardly, similar in 

 both sexes. 



Length 10-13 mm. ; width 7-9 mm. 



Easily distinguished from its South African congeners by the 

 impressions on the prothorax. Examples from Cape Colony are of 

 a redder coppery hue on the upper side than those from beyond. 



Hah. Cape Colony (Knysna, Port Elizabeth, Somerset East, 

 Graham's Town), Natal (Durban, Newcastle, Maritzburg), Transvaal 

 (Potchefstroom, Boksburg). 



Gymnopleueus humeealis, Klug, 

 Monatsb. Berl. Acad., 1855, p. 650; Peter's Eeis., 1862, p. 216. 



Dark cyaneous, turning sometimes to green, opaque ; head very 

 finely and equally shagreened, anterior part sub-foveate and granulose ; 

 prothorax finely aciculate, lateral margin sub-aculeate at about three- 

 fourths of the length, not grooved, and produced at the base in a 

 very distinct angular process ; there is hardly any sign of a longi- 

 tudinal line in the centre of the disk ; elytra attenuate laterally 

 towards the apex, and having the upper angle of the lateral emargi- 

 nation sharply aculeate, intervals aciculate, some of the punctures 

 shining more than the background ; pygidium shagreened ; meta- 

 sternum produced in a moderately sharp triangular process impressed 

 slightly at times at a short distance from the apex, and very closely 

 granulose, sides less densely granulose, median part closely aciculate, 

 and with an indistinct longitudinal line stopping at some distance 

 from the apical process. 



Length 11-14 mm. ; width 6-9 mm. 



This species is very closely allied in shape and colour to 

 G. moclestus ; the difference consists in the sculpture of the upper 

 surface, which, wdth the exception of the head, is aciculate instead 

 of being shagreened, the elytra are much more attenuate laterally 

 towards the apex, and the upper angle of the lateral emargination 

 is sharply angular instead of being rounded. 



