370 Ml. C. N. Biuker on 



HypoUthus caffer, Boli., aud H. glaber^ Boh. 



I owe it to the suggestion of Mr. H. E. Andrewes, a well- 

 known authority on Oriental Carabidte, my present con- 

 viction that H. cafftr, Boh., and H. ylaber, Boh., are the 

 sexes of one aud the same species, the former being the 

 female of the latter. Both of these have a wide South 

 African range, and, to the best of my knowledge, in those 

 places where the one occurs the other is also found, and only 

 males of "■ glaber" and females of " caffer" are on record. 



In shape aud sculpture they are alike, except in those 

 slight details which are usual between the sexes ; but the 

 elytra of ^'caffer" are pubescent, those of ^'' glaber," as its 

 name implies, are not so, and this naturally gives them a 

 different appearance. Tliere are, however, in fresh speci- 

 mens of '■'' gldber'^ some sparsely distributed hairs about the 

 posterior margins. 



A very nearly allied species, which I am describing below 

 under the name " legitimus,'^ sp. n., shows identically 

 similar sexual differentiation. 



HypoUthus legitimus, sp. n. 



Length 9:^-10^ mm.; width 3|-3^ mm. 



Black; elytra very iridescent; piceous to piceous red 

 beneath. Legs, antennae, and palpi testaceous yellow ; 

 labrum and margins — narrowly — of prothorax, and the 

 epipleurie of elytra deep red ; elytra of males (except for a 

 little sparse pubescence about the posterior margins) glabrous, 

 of the females briefly pubescent*. 



Head smooth, glabrous, very convex in the posterior part, 

 frontal fovege inconspicuous. 



Prothorax transverse (c? 2| x 2), anterior part smooth 

 or obsolescently aciculate, shallow basal depressions densely 

 aciculate-punctate, front shallowly bisinuate with the median 

 part convex, angles obtusely prominent, sides ampliated, 

 widest about middle, nearly evenly rounded from apex to 

 the rounded posterior angles ; base a little wider than apex, 

 median line sliort, intercepted aljove by the usual transverse 

 arcuate sulcation, the space between it and the front marg:n 

 distinctly raised to meet a corresponding convexity of base 

 of head. 



* One female in my possession is as devoid of pubescence as the 

 average male. 



