14 MEMOIRS ON THE COLEOPTERA. 



Athetalia n. subgen. 



This subgenus differs from Anepsiota in having the infra-lateral 

 carinse of the head very strongly developed and entire ; the abdomen 

 is narrower and is not always parallel. The middle coxae are 

 contiguous, the mesosternal process acutely angular or prolonged 

 and aciculate, and the metasternal extremely short, very broadly 

 angulate. One of its most salient characters is the very long basal 

 joint of the hind tarsi, so unusual a character in Atheta, this joint 

 being fully as long as the next two combined throughout. The 

 three species at present assignable are as follows: 



Atheta (Athetalia) bicariniceps n. sp. Rather stout and convex, shining, 

 fusoid, testaceous, the head slightly darker, the abdomen, except apically, 

 black; legs pale, the antennae infuscate; head parallel at the sides, the eyes 

 rather prominent, at their own length from the base; antennae long, gradually 

 incrassate, the outer joints not quite as long as wide, the eleventh pointed, 

 not quite as long as the two preceding; prothorax convex, transverse, one- 

 half wider than long, just visibly narrower than the elytra but very much 

 wider than the head, the sides parallel and broadly rounded, the minute 

 punctures sparse, the basal impression well developed; elytra wider than 

 long, the suture much longer than the prothorax, the punctulation only 

 moderately close-set, the micro-reticulation rather feeble; abdomen at base 

 evidently not so wide as the elytra, thence evenly tapering to the tip of the 

 fifth tergite, where it is three-fourths as wide as at base, the tergites flat, the 

 basal impressions fine, the punctulation feeble and sparse, the sixth rounded, 

 becoming gradually sinuate medially at tip, the sixth ventral rather narrow 

 and acutely angular, the apex of the angle slightly blunted ; mesosternal process 

 long and acicular; basal joint of the hind tarsi very long, fully as long as 

 the next two. Length 2.8 mm.; width 0.73 mm. California (Siskiyou Co.). 



The tapering form of the abdomen is remarkably exceptional in 

 the true Athetae and this character alone will serve to isolate this 

 species from its fellow r s; the infra-lateral carinae are very strong 

 and are entire. 



Atheta (Athetalia) repensa n. sp. Moderately stout, more parallel, rather 

 convex, shining, colored as in the preceding, the elytra however in the type 

 having feeble infumation apico-externally and medio-basally; integuments 

 polished between the punctures, without the usual micro-reticulation; head 

 nearly as in the preceding but relatively larger, the eyes not quite so convex; 

 antennae a little more rapidly and strongly incrassate distally but other- 

 wise nearly similar; prothorax not quite so large, slightly narrower than 

 the elytra and distinctly but not so greatly wider than the head as in bicarini- 

 ceps, otherwise similar, except that there is no basal impression, and, instead, 

 a fine even impressed line throughout the length; elytra slightly transverse, 

 much less so than in the preceding and very much longer than the prothorax, 



