AMERICAN COLEOPTKRA. 157 



3. A. sagiiiatus Casey.— "Elytra much shorter, three-fourths longer than 

 wide; eyes more convex and better developed, separated by three times their 

 own width. Body suboblong, moderately convex, dull, blackish, almost similar 

 throughout to pleuralis but shorter, the prothorax relatively rather smaller and 

 the elytra much shorter, not distinctly dilated subapically, and with the minute 

 subgranuliform rugulosity still finer, and the pubescence a little denser, the fine 

 striae distinct to summit of the convex declivity. The hind tarsi are longer than 

 in pleuralis. Length 3.4 mm. ; width 1.25 mm. 



"California — locality not indicated." 



EUCERATOCERUS LeConte. 

 Elongate, cylindrical, a little depressed, clothed with very short, 

 fine grayish pubescence ; elytra finely and feebly striate-punctate. 

 Terminal joint of palpi elongate, pointed, a little dilated at middle. 

 Autenna3 pectinate in the male, serrato-pectinate in the female. In 

 other respects and indeed in some of those mentioned above this 

 genus is substantially identical with Actencbium. The basal joint 

 of tarsi and the first ventral segment are a trifle shorter in Eucera- 

 tocerus, but the difference is not very noticeable. 



1. E. Iiornii Lee. — Elongate, parallel, piceous brown, antennae and feet only 

 slightly paler; pubescence very short, moderately plentiful but not dense. "An- 

 tennae ( % , fig. 29) longer than half the body, the first joint nearly as long as the 

 third, second small, third and following subequal, about three times as long as 

 wide, each with an oblique basal process longer [than] and as broad as the joint 

 itself, except that of the second, which is shorter and broader." Head and pro- 

 thorax finely subgranulate and dull, the latter as wide as or slightly wider than 

 the elytra at base, disk a little more prominent at middle posteriorly ; sides dis- 

 tinctly but not widely margined, the margin finely serrulato-crenulate, hind 

 angles quite broadly rounded. Elytra with fine, feebly punctate striae. Tarsi 

 slender and as long as or slightly longer than the tibiae. Length 4 mm. 



Texas. Type collected by Belfrage. 



With the type in the LeConte collection is a second specimen — 

 evidently a female — which differs from the male type in being en- 

 tirely black, the antennae and feet not paler; prothorax with nar- 

 rower side margin which is scarcely or very feebly crenulate ; the 

 hind angles less broadly rounded, thus giving the thorax a more 

 quadrate appearance; tarsi apparently less slender, the second joint 

 more evidently shorter than the first, the whole tarsus barely as long 

 as the tibia. This second specimen is mounted in typical Belfrage 

 style and is doubtless from the same source as the type. It seems 

 best therefore to regard the two as sexes of the same species at least 

 for the present. 



TRANS. AM. ENT. SOC. XXXI. MAY, 1905. 



