American Caraboidea 193 



apex; prothorax of nearly similar form and outline, but with the 

 sides apically more gradually rounding, the posterior denticle as in 

 the female of castigata, the anterior incised line and median stria 

 similar; elytra oblong-oval, with strongly rounded humeri, less 

 than one-half longer than wide, between a third and fourth wider 

 than the prothorax; impressed punctureless stride very evident at 

 certain angles of view; anterior tarsi slender, the basal joints almost 

 symmetric, the inner apical angles barely perceptibly more acute 

 than the outer. Length (9) 8.3 mm.; width 2.7 mm. Alabama 

 (Mobile). One example bullata n. sp. 



It is probable that all the above forms are more or less closely 

 related to Icevipennis Lee, from Georgia, but the author states 

 that in the latter the prothorax is feebly, transversely rugose and 

 that it is transversely impressed anteriorly and posteriorly. The 

 type of castigata is a male, this differing unusually from the female, 

 not only in its rather more elongate and parallel form, but still 

 more notably in the size and position of the latero-basal denticle 

 of the prothorax; I am in fact not quite certain that the male and 

 female associated above belong truly to the same species, the very 

 pallid color perhaps being due to immaturity in one or both of 

 them, but, in obsoleta Say, at any rate, the pale coloration seems 

 to be natural. 



Evarthrinus Csy. 



A number of species recently received already necessitate some 

 rearrangement of the genera allied to Evarthrns. Evarthrus enormis 

 Csy., must be removed from that genus and placed in Eumolops, 

 where it is distinguished by a larger head and much shorter and 

 feebler basal sinus of the thoracic sides than in any other species; 

 as nonnitens Lee, is probably allied to enormis, this too may be 

 assigned to Eumolops. 



The genus Evarthrinus was announced (Mem. Col. VIII, p. 357) 

 as a subgenus of Eumolops, more on the possession of three elytral 

 punctures than any other differential feature, but it is in reality a 

 distinct genus and should be so regarded. The prothorax is of a 

 different outline, being much narrower at base than at apex, and 

 the dorsal punctures of the elytra vary from one to three, being 

 rather constantly three in deceptus and impolitus, but one in the 

 others at hand, except in a male of sodalis, where they are two in 

 number. The species of Evarthrinus are all notably narrower than 



T. L. Casey, Mem. Col. IX. Feb. 1920. 



