1873.] «** [Horn. 



A. 



E. puncticollis, Mann. Bull. Mosc 1843, p. 288 ; Lee. Ann. Lye. V, p. 

 162 ; Proc. Aead. 1853, p. 338. 



Black, moderately shining ; sparsely clothed with erect black pubes- 

 cence. Head coarsely and moderately densely punctured. Thorax 

 slightly longer than wide, sides in front moderately arcuate, surface 

 moderately shining, coarsely and rather densely punctured. Elytra 

 coarsely punctato-scabrous. Body beneath more shining than above and 

 more sparsely punctured. Length .30-.50 inch ; 8-13 mm. 



Occurs aoundantly from Oregon to San Diego, Cal. 



E. oblita, Lee. Ann. Lye. V, p. 162; Proc. Acad. 1853, p. 339. 



Very closely allied to the preceding species and differs by its rather 

 more slender form and much less densely punctured head and thorax, 

 although the punctures are equally coarse in both species. The antenna: 

 also show a tendency to become more slender toward the tip, but this 

 character is more than compensated by the broad eyes, this being especi- 

 ally the character of the group. Length .30-. 40 inch ; 8-10 mm. 



Occurs at San Francisco, Cal., and also in Owen's Valley. 



E. convolvuli, Mels. Proc. Acad. Ill, p. 53 ; Lee. ibid, 1853, p. 339 ; 

 Lee. New Species, p. 157. 



Black, opaque, densely punctulate, clothed with short moderately dense 

 recumbent pubescence. Head behind the eyes red, vertex finely canalicu- 

 late. Thorax rarrower than the head, and more densely punctured, one- 

 half longer than wide, a fine median line. Elytra moderately elongate, 

 surface granulato-scabrous. Length .30-.50 inch ; 8-13 mm. 



Male. Head opaque, punctures less deep and less numerous. Terminal 

 abdominal segment slightly emarginate. 



Female. Head shining, punctures coarse and more densely placed. 

 Terminal segment rounded at tip. 



In the majority of specimens the head behind the eyes is red, but in 

 many the head is intensely black and sometimes attains an unusually 

 large size. The pubescence of the entire surface is usually cineieous 

 varying from this to an almost entire blackness. In the latter case the 

 species resembles E. pensylvn nica, from which it may be distinguished 

 by the form of the eyes and antenna} as well as by the punctuation of the 

 head and thorax being dissimilar. 



Occurs from Pennsylvania to Texas. 



E, strigosa, Sch. Syn. Ins. Ill, App. p. 18 ; Lee. Proc. Acad. 1853, p. 

 341 ; nigricornis, Mels. Proc. Acad. Ill, p. 53. 



Body black. Head densely punctured, at middle finely canaliculate, 

 clothed with cinereous or ferruginous pubescence. Thorax longer than 

 wide, feebly narrowed to the front, surface densely punctured, densely 

 clothed with cinereous or ferruginous pubescence with a dark line on each 

 side of middle. Elytra finely punctato-scabrous, clothed similarly to the 

 thorax and with a moderately broad black vitta near the suture and 

 a. p. s- — VOL. XIII. M 



