98 MISC. PUBLICATION 4 7 0, U. &'. DEPT. OF AGRICULTURE 



deeply, arcuately emarginate on lower margin at apex (upper margin trans- 

 versely truncate), with a slightly serrate submarginal ridge, lateral margins 

 coarsely serrate ; eighth tergite coarsely, sparsely punctate, lower margin rounded 

 at apex, upper margin angularly produced at apex. Prosternum sparsely, coarsely, 

 irregularly punctate, sparsely clothed with long, semierect, white hairs ; an- 

 terior margin slightly deflexed, slightly rounded at middle, but without a distinct 

 median lobe. Anterior femur with a short, obtuse tooth, which is dentate on outer 

 margin. Anterior and middle tibiae arcuate, the former with a short, broad, 

 angular tooth near apex, the latter slightly expanded at apex; posterior tibia 

 straight. 



Length 6.5 mm., width 2.75 mm. 



Redescribed from the male lectotype, No. 3432, in the Academy of 

 Natural Sciences of Philadelphia, 



Female. — Differing from the male in having the front of the head uniformly 

 reddish cupreous, the abdomen beneath more strongly convex, the last visible 

 sternite more elongate, and shallowly, broadly, arcuately emarginate at apex, 

 the eighth tergite more densely punctured, and rounded or slightly emarginate 

 at apex, the middle tibia straight, and the anterior tibia unarmed near apex. 



Type locality. — Colorado, no definite locality. 



DISTRIBUTION 



From material examined : 



Arizona: Ashfork, June 18; Williams, May 28 to June 16 (Barber and Schwarz). 



Colorado: No definite locality. Lectotype (Horn collection). 



New Mexico: Estancia, 1925 (J. R. Douglass). 



Texas: No definite locality (Horn collection). Alpine, June 10, 1930 (E. G. 



Linsley). 

 Utah : South Creek, Beaver County, June 22. 



Fall (1901) and Chamberlin (1926) record speculifer from Cali- 

 fornia, but no specimens from that State have been examined by the 

 writer, and these records probably refer to helferi Fisher. 



Host. — The larval habits are unknown, but Linsley collected the 

 adults on Jimiperus sp. at Alpine, Tex. 



The sculpture on the dorsal surface of the body is rather constant, 

 but the color on the pronotum varies from reddish cupreous to brown- 

 ish cupreous, the smooth spaces: on the elytra from greenish black to 

 reddish purple, and the densely punctured areas on the elytra are 

 usually more reddish cupreous than the elevated smooth spaces. The 

 head is usually bronzy green on the front, becoming brownish cupreous 

 on the occiput, and occasionally the submarginal ridge is obsolete. The 

 sides of the pronotum are usually parallel and slightly sinuate at the 

 middle, but occasionally the pronotum is widest at the apical third, 

 with the sides obliquely converging posteriorly, and in most of the 

 specimens examined the median sulcus and callosities at base are obso- 

 lete. The prosternum is smooth at the middle in some of the speci- 

 mens. The length is from 5.5 to 10 mm. 



Chamberlin (1926) gives the type locality as California. This is 

 an error, as Horn did not have any specimens from California when 

 he described the species. 



