490 Transactions SontJt African Pliilosophical Society, [vol. xii. 



often nearly obsolete, but not altogether wanting ; the head is 

 scrobiculate right to the basal margin ; the scutellum is aciculate, 

 the colour of the head and thorax is less infuscate, and the punctures 

 on the elytra are deeper and a little larger ; anterior tibiae seven- 

 dentate. 



Length 8-9|- mm. ; width 5^-7 mm. 



Hah. Natal (Durban), 



BOLBOCERAS MACULICOLLE, Boliem., 



Plate XXXVI., fig. 28 ; Plate XXXIX., fig. 9. 

 Insect. Caffrar., ii., p. 375. 

 ?5. dorsualc, Boh., loc. cit., p. 376. 



Testaceous red, with the head, a wide longitudinal patch in the 

 centre of the pro thorax, and the suture of elytra, black ; head covered 

 with broad, deep, foveate punctures, scrobiculate on the clypeus ; 

 labrum emarginate ; clypeus truncate at tip, a little diagonally 

 attenuate and sinuate laterally, basal angles raised in the shape of a 

 sharp triangle, in the median part of the head there is a transverse, 

 distinctly tri-dentate carina in a line with the apical part of the 

 eyes; prothorax not very sinuate at apex, median part of apical 

 margin simple, it is covered all over with scattered punctures which 

 are a little more numerous and slightly more closely set in the 

 female, there is a shallow impression in the anterior part, and an 

 ill-defined, sulcate, longitudinal median line in the posterior half of the 

 disk ; scutellum deeply and moderately closely punctured ; elytra 

 deeply and closely punctato-striate, eight and ninth intervals reaching 

 the humeral callus, intervals impunctate and convex ; under side and 

 legs densely pubescent; anterior tibitB nine-dentate. 



Female similar to male. 



Length 9-10 mm. ; width 5|-6 mm. 



Hah. Natal (Frere). 



I believe that B. dorsualc is the same species as B. macidicolle ; in 

 the former the sutural band on the elytra is broadly dilated in the 

 apical part. Boheman says that the anterior tibia? have eight teeth 

 instead of nine. I omitted to verify this character when I examined 

 the type. 



BOLBOCERAS ORXATELLUM, n. speC. 



Pale testaceous, head black, prothorax with a quadrate, black 

 median patch, scutellum as well as the suture of elytra black ; labrum 



