1899] 



ENTOMOLOGICAL NEWS. 



NEW SPECIES OF PEMPHUS AND TRAGOSOMA 



( Coleoptera) . 

 By Thos. L. Casey. 

 The tribe Cyelirini of the Carabidae has ever been a favorite 

 with coleopterists, because of the large size and elegant form 

 of the species, although the colors are usually not so brilliant 

 as in Carabus — in fact throughout the entire genus Brennus, 

 excepting marginatus and a few allied forms, the species are of 

 an intense black, Pemphus is similar in this respect, the lus- 

 tre however being invariably dark and not shining as in Bren- 

 nus. The genera of the books are, in my opinion, valid and 



not subgenei'a. 



Pemphus Motsch. 



The following species belongs near longipes, and Mr. Rick- 

 secker, to whom I am indebted for a fine, pair, writes me that 

 the habits are similar to those recorded under my description 

 of the latter (Col. Xot., VII, p. 339), the motions being rather 

 sluggish and the gait deliberate. 

 Pemphus opacus, n. sp 



Moderately convex, the elytra somewhat ventricose, broadening 

 to about apical third, black throughout and dull in lustre. Head 

 elongate, the eyes small ; vertex feebly convex, very slightly wrin- 

 kled transversely ; antennae long and slender, the basal joint thicker, 

 claviforra, 2.7-3 mm. in length. Prothorax apparently very 

 slightly longer than wide, dilated and broadly rounded at the sides 

 distinctly before the middle, the sides sinuate toward base; surface 

 very feebly convex, the side margin moderately reflexed. Elytra 

 about a third longer than wide, nearly two and a half times wider 

 than the prothorax; sides broadly arcuate, the humeri not well 

 marked; surface finely and irregularly punctate throughout, each 

 elytron with two or three discal intervals which are nearly regular ; 

 side margins feebly cone ive, colrsely and unevenly punctate, the 

 reflexed edge smaller than that of the prothoi-ax. Under surface 

 more shining than the upper, the legs long and slender. Length 

 24.5-27.0 mm. ; width 9 5-11.4 mm ; length of head and mandibles 

 6.0-6.7 mm.; length of hind tibia 9.5-11.0 mm. 



California (Sonoma Co.). 



The male is smaller and less ventricose than the female and 

 has the anterior tarsi moderately dilated, with the basal joint 

 densely pubescent beneath in distinctly less than apical half. 



Since completing my revision of Brennus (1. c, p. 305), I 

 have received a pair of B. fulleri Horn, from Mr. Wickham, 



