1896.] of the Colcoptera of South Africa. 275 



paraglossse broader than the hgula and singly rounded at the apex ; 

 ultimate joints of maxillary and labial palpi cylindrical; prothorax, 

 elytra, and legs as in Arsinoe. 



Hah. The genus is represented in Senegal. 



Synopsis of Species. 



Elytra with a humeral yellowish-red patch near the base and 

 a sutural one in the posterior part. 



Head and prothorax black, posterior angle acutely recurved triniaculatus. 

 Head and prothorax red, posterior angle not much recurved gentilis. 



LOBODONTUS TRISIGNATUS, Chaud., 



Bull. Mosc, 1842, iv., p. 121.. 



L. trimaculatus, Chaud., I.e., 1848, i., p. 121. 



Head punctulated, black ; labrum, palpi, and antennae reddish, 

 the four basal joints of the latter redder than the rest ; prothorax 

 black, slightly rufescent on the outer margins which are sharp, 

 posterior angle much recurved ; elytra punctato-striate, with the 

 intervals punctured, slightly convex, the third one from the suture 

 with a broad puncture above the apical part, black, shining, outer 

 margin with a series of broad punctures and narrowly edged with 

 reddish brown, and on each side an elongated subhumeral yellow 

 patch reaching from the base to about one-third of the length, 

 extending from the fourth to the eighth interval, and a supra- 

 apical, subquadrate patch as long as the anterior one but not 

 reaching quite the apex extending from the suture to the fourth 

 interval, and coalescing at the suture with the patch on the opposite 

 side ; legs and under side dark red ; abdomen slightly infuscate. 

 Length 7 mm. ; width 3 mm. 



Hah. Cape Colony, Natal. 



LOBODONTUS GENTILIS. 



Head, prothorax, and antennas red ; head deeply punctulated ; 

 prothorax short, punctulated, the outer sides recurved, deeply 

 punctured, the margins acute ; scutellum red ; elytra deeply punctato- 

 striate with the intervals punctured, plane, the third one from the 

 suture with two broad punctures, one in the anterior part and the 

 second one above the apex, black, shining, with the outer margins 

 red, and on each side a red, quadrate patch reaching the base and 

 extending from the third to the seventh interval, also a subquadrate 

 supra-postical one reaching from the third interval to the suture 

 where it coalesces with the patch on the opposite side ; under side 

 iind legs red ; abdomen infuscate. Length 5-7 mm. ; width 3 mm. 



Hah. Natal (Frere), Zambezia (Salisbury). 



Although closely allied in general facies and colouring to the 



M 



