ROLAND HAYWARD. 53 



more or less tinged with rufous; nil the femora with two setigerous punctures 

 along the inner margin ; basal joint of middle and hind tarsi grooved on the 

 outer side. Length .30-. 38 inch ; 7.5-9.5 mm. 



This species resembles very closely wtpwicticollis. The essential 

 character separating the two consists in the earination of the second 

 and third joints of tlie antennae. This character is less developed 

 in this species than in most of the others in which it is observable, 

 and, in fact, in some examples the carina of tlie second joint is 

 scarcely discernable. The thorax is somewhat less deeply eniargi- 

 nate at apex, and the prosternum is more broadly rounded at tip, 

 while the form is slightly less oval. From all our other species of 

 the subgenus, except impxuicticollis and littoralis. it is readily dis- 

 tinguishable by the presence of an ocellate puncture at the base of 

 the scutellar sti-ia of the elyti-a. 



It is known to me from Massachusetts, New York, New Jersey, 

 Pennsylvania, iNIaryland, Illinois, Mi.ssouri, Nebra.ska, Colorado, 

 New Mexico, Utah, Idaho, Nevada and along the Pacific Coast 

 from California to British Columbia. 



39. A. ha««illariM Say. — Form oblong, convex. Color vaiying from seneous 

 to nearly black, shining. Head scarcely narrower than the thorax at apex; 

 antenna shorter than the head and thorax, not carinate, piceous, the three basal 

 joints rufous; paljii piceous. Prothorax snbquadrate, nearly twice as wide as 

 long, narrowed from about the middle to apex, sparsely but distinctly punctate 

 each side of base; apex slightly emarginate; sides rounded in front, nearly 

 parallel behind, the miirgin narrowly reflexed ; transverse impressions obsolete 

 or nearly so, the anterior sometimes feebly marked ; median line very fine; basal 

 impressions usually distinct, the inner longer thftn the outer, rarely somewhat 

 poorly defined ; base very feebly bisiuuous ; hind angles rectangular, not carinate. 

 Elytra moderately deeply striate; stri* punctate, entire, the scutellar stria 

 without ocellate puncture at base, the eighth with the row of ocellate punctures 

 narrowly interrupted at middle; intervals nearly flat. Body beneath dark 

 piceous or black ; prosternum broadly rounded at tip ; sides of metasternum and 

 metasternal episterna sparsely punctured, the sides of the first tliree ventral seg- 

 ments more densely so. Legs rufous or rufopiceous, the femora often darker; 

 anterior and posterior femora with two, the middle femora with three setigerous 

 punctures along the inner margin ; tarsi not grooved. Length .28-. 34 inch; 7- 

 8.5 ram. 



The pubescence of the posterior tihite in the males is somewhat 

 more dense and longer than in most of our species. In the females 

 the surface is scarcely perceptil)ly alutaceous. 



The posterior lateral .setigerous puncture of the thorax is much 

 smaller than usual, and is about equidistant from tiie side and basal 

 margins. 



TBA.NS. AM. ENT. SOC. XXXIV. MAKCH, 1908. 



