AMERICAN COMPONENTS OF THE TENTYRIINyE 33I 



the frontal margin without trace of emarginations ; prothorax 

 nearly four-lifths wider than long, slightly wider behind the middle 

 than at base, strongly narrowed anteriorly and deeply sinuate, 

 with rather acute and prominent angles, tlie sides almost evenly 

 and broadly arcuate ; punctures only moderate in size but strong 

 and rather close-set, becoming only slightly larger but deeper and 

 coalescent laterally, each puncture with an exceedingly minute 

 yellow seta; scutellum moderate; elytra but little more than one- 

 half longer than wide, about three and one-half times as long as 

 the prothorax but only very slightly wider, evenly, obtusely ogival 

 in apical third, the sides parallel and nearly straight ; punctures 

 in even impressed series, continuing to the apex and becoming 

 coarse and approximate laterally, the interstitial punctures very 

 minute, sparse and more or less confused ; abdomen finely but 

 distinctly, sparsely punctate. Length 7.2 mm.; width 3.2 mm. 

 Texas texanus Lee. 



Form narrower, moderately convex, slightly alutaceous, deep black in 

 color, the legs dark rufous ; head as in texantis but rather less 

 coarsely or closely punctate ; prothorax formed nearly as in tex- 

 anus but rather less transverse and with the punctures medially 

 rather finer, becoming much coarser and close-set laterally but 

 not as dense as in texafitis ; scutellum small, subparallel, trun- 

 cate ; elytra more elongate, two-thirds longer than wide, similarly 

 about three and one-half times as long as the prothorax but scarcely 

 wider, more gradually and acutely ogival in about apical third, 

 the sides parallel and nearly straight, the sculpture similar but 

 with the serial punctures less coarse laterally and the eighth stria 

 less impressed and less coarsely punctured toward base than in 

 that species. Length 6.6-7.7 mm. ; width 2.65-3.0 mm. Texas 

 (Brownsville), — H. F. Wickham angularis n. sp. 



The impression of the eighth stria toward base, it being there 

 more coarsely and closely punctured, is a rather distinct feature 

 in this, as well as in some species of the following genus. The 

 descriptions of texantis and angularis given above are both 

 drawn from the male, but there are no striking secondary 

 sexual characters observable, except that the head in the 

 female is slightly smaller than in the male. 



Hylocrinus n. gen. 

 While this genus is readily distinguishable from Arnialia by 

 the unlobed epistoma and simple or much less strongly toothed 

 right mandible, it resembles it closely in the elongate form of 

 the body, in its slender antenna?, feebly bifid apex of the man- 

 dibles, well developed and moderately prominent eyes, in hav- 



