South African Coleopterous Fauna. 251 



male, much less so in the female, sub-parallel, strongly declivous 

 behind, very little convex in the dorsal part, strongly costate, the 

 costae sub-tectiform with the intervals bluntly striate-punctate, these 

 punctures, however, are broad, deep, and impinge transversely on 

 the posterior part of the sixth and eighth costae. In the female 

 the prothorax is less broad, more evenly rounded laterally, and the 

 elytra are wider at the base. 



Allied to C. transvaalensis, P6r., but more robust ; the costae of 

 the elytra are much more tectiform, and the seriate punctures are 

 much less plainly defined. In my female example of C. trans- 

 vaalensis the punctures on the prothorax are much more closely set 

 than in the same sex of C. manicanus. C. intermcdius, Gah., seems 

 to me to be still more closely allied to the preceding species, and the 

 two might prove to be one. The description is unfortunately so 

 short that no comparison is possible. The species in the Collec- 

 tion which I identify as Mr. Gahan's species are, however, either 

 brassy-green or have violaceous elytra, and the punctures on the 

 prothorax of the male are numerous in the median part of the 

 disk. 



Length 20-21 mm. ; width 8-9 mm. 



Hob. Southern Ehodesia (Manica), F. C. Selous ; (Unitali), A. 

 Bodong. 



CATAMERUS GASANUS, n. sp., 

 Plate XIII., fig. 12. 



Very dark blue, like the preceding species, but not so dark on the 

 upper side, and shorter ; the head is very roughly punctured ; the 

 prothorax, which in the female is not so small as in the same sex of 

 C. manicanus, is more crenulate laterally, and the emargination 

 above the basal angle is more deeply incised, especially in the male, 

 the disk bears two broad impressions equi-distant from the median 

 and the basal parts, and is deeply and closely punctured in both 

 sexes, the punctures being coarser than in C. manicanus ; the elytra 

 are also wider and shorter in proportion to the width, the much- 

 raised costae are very sharply tectiform, and the much deeper striate 

 punctures of the intervals impinge greatly on the sides of each, the 

 sixth, and especially the eighth costae being interrupted by trans- 

 verse impressions in the posterior part. 



Length 20 mm. ; width 9^-10 mm. 



Hab. Mozambique (Gazaland). G. A. K. Marshall. 



