THE CANADIAN ENTOMOLOGIST. 251 



slightly sinuate behind the prominent humeri, feebly broadened behind the 

 middle, basal depressions deep with two very faint impressions behind 

 them ; the junction of the discal flattened portion with the convex sides 

 of the elytra has the appearance of obtuse costas curving inward from the 

 humeri and vanishing near the middle of the elytra ; apices separately 

 rounded, subacute and serrulate ; surface coarsely imbricate-granulate. 

 Body beneath shining aeneous with golden pubescence which is sparse on 

 the middle of the abdomen and becomes very dense on the episterna, 

 sides of the metasternum, outer half of the coxal plates, vertical portion of 

 the abdomen, and a triangular patch on each side of all the abdominal 

 segments. Proster7inm thickened, swollen behind the lobe which is 

 slightly sinuate-truncate in front and with a distinct marginal bead ; inter- 

 coxal process slightly concave, longitudinally with an acute and depressed 

 tip ; surface densely punctate. Meiaster?ium rather densely punctate, 

 becoming rather strigate at the sides. Abdomen with the first segment 

 flattened and rather coarsely densely punctate at the middle, becoming 

 strigate at the sides ; second segment with a deep smooth groove with 

 sharply defined edges narrowmg and vanishing at the posterior third, 

 sparsely coarsely punctate ; last three segments finely and less sparsely 

 punctate ; apex of the last segment subtruncate with a slight tendency to 

 emargination; median carina of the pygidium strong and projecting. Claws 

 cleft alike on the middle and hind tarsi ; nearly bifid on the front pair 

 with the inner lobes less incurved; front and middle tibiae distinctly 

 mucronate. Length lo mm. Width 2.4 mm. at the base of the elytra. 



Three males of this species were taken at Framingham, Mass., May 

 31, 1909. One of these is now in the collection of Prof. H. C. Fall, Pasa- 

 dena, Cal, and to him I am indebted for an examination of this specimen 

 with reference to the above description. There is very little variation in 

 the two specimens in my collection, the type being slightly more cuneate 

 in form. 



A female collection by Mr. A. B. Champlain at Lime, Conn., now in 

 the Experiment Station collection at New Haven, May 29th, 1910, is 

 referred to this species. It differs in bemg more black in colour (but not 

 the opaque black of biliiieatus) and more robust in every way while being 

 only slightly longer — 10.8 mm. The occiput is more impressed, and the 

 granulations of the eyes normal. The carina of the hind angles of the 

 thorax is more distinct ; the prosternai lobe shows a slight emargination 

 in front and is less swollen behind it. The punctuation is more dense 

 beneath and the golden pubescence covers less area. The claws are cleft 

 alike on all the feet, the inner lobe being nearly as long as the outer and 

 somewhat incurved. The last abdominal segment is slightly eroded-gran- 

 ulate and faintly truncate. The thorax at the middle, the elytra at the base 

 and at the enlargement behind the middle measure 3 mm. 



Another female from New Haven, Conn., June 12, 1911, collected by 

 Mr. B. H. Walden is similar to the preceding except in the following 

 details : occiput less impressed ; thorax with a larger and more elongate 



