1 6 MEMOIRS ON THE COLEOPTERA. 



the eyes at more than their own length from the base; antennae long, very 

 moderately incrassate, the tenth joint obtrapezoidal, about as long as wide, 

 the eleventh pointed, almost as long as the two preceding; prothorax dis- 

 tinctly narrower than the elytra and very much wider than the head, relatively 

 larger than in subplana, moderately transverse, parallel and rounded at the 

 sides, very minutely, not closely punctulate and with a rather large but feeble 

 transverse ante-basal impression; elytra large, wider than long, very much 

 longer than the prothorax, the punctures moderately close-set and distinctly 

 but not very coarsely graniform, less strongly than in granulata; abdomen 

 parallel, narrower than the elytra, minutely, rather sparsely punctulate, 

 much more distinctly and less sparsely than in granulata, where the abdomen 

 is almost sculptureless. Length 3.2 mm.; width 0.78 mm. Alaska (Nome), 



Related to granulata but differing in its smaller head, more 

 rounded sides of the prothorax, more punctulate abdomen and 

 smaller size. 



Liogluta Thorns. 



As represented by the European longiuscula Grav., and nitidula 

 Kr., Liogluta is allied somewhat to Stethusa in the more widely 

 separated middle coxae, with the mesosternal process rather wide 

 and abruptly arcuato-truncate at tip; it differs from Stethusa in its 

 much smaller eyes, smaller prothorax and generally black coloration. 

 The basal joint of the hind tarsi is equal to the second or a little 

 longer; the infra-lateral carinae of the head are feebly developed and 

 abbreviated. The following American species agrees very well in 

 structure with the European, except that the metasternal projection 

 is longer and more angulate: 



Atheta (Liogluta) insolens n. sp. Moderately stout and convex, strongly 

 shining and with obsolescent micro-reticulation, deep black, the antennae 

 black throughout, the elytra and legs piceous, the former blackish basally; 

 head parallel, well developed, the eyes at more than their own length from 

 the base, the basal angles broadly rounded; antennae moderate in length, 

 rather rapidly incrassate, the outer joints distinctly wider than long; 

 prothorax transverse, parallel, rounded at the sides, intermediate in width 

 between the head and elytra, not distinctly punctulate and unimpressed; 

 elytra large, slightly transverse, much wider and very much longer than the 

 prothorax, very minutely, not closely punctulate; abdomen almost as wide 

 as the elytra, parallel, with just visibly arcuate sides, almost sculptureless; 

 first four joints of the hind tarsi equal. Length 2.5 mm.; width 0.7 mm. 

 Queen Charlotte Islands (Massett), Keen. 



Differs from vicina and nitidula in its broader abdomen, from 

 the former also in its larger head and prothorax; the antennae, also, 

 are more rapidly and strongly incrassate than in either. In the 



