334 Coleopterolocjical Notices. 



as long as the elytra, the longer metasternum and free elytra. The 

 three specimens do not indicate any great variation. 



Ell. dllbium Casey. — Cont. Descr. Col. N. A., I, p. 44; carbonatum Gas. ; 

 1. c, p. 43. — Elongate, parallel, convex, polished, the elytra dull toward apex, 

 intense black ; legs and antennae dark rufous. Head nearly as in rufipes, the 

 punctures not quite so dense ; antennae slender, the third joint three times as 

 long as wide, second distinctly. shorter and more robust than the fifth. Pro- 

 thorax nearly as in rufipes, the punctures toward the sides not quite so coales- 

 cent and also distinctly sparser toward the middle, the disk more transverse, 

 fully three-fonrths wider than long. Elytra usually distinctly wider than the 

 prothorax and nearly four times as long ; sides parallel and nearly straight, 

 punctured nearly as in ru^pes. Lenglh 7.6-8.5 mm. ; width 2.8-3.4 mm. 



Arizona. Mr. Morrison. 



This species, while allied to rvfipes, differs in its slightly narrower 

 form, and especially in the relatively smaller, more transverse pro- 

 thorax and longer elytra. The prothorax varies considerably in 

 size and convexity. 



Eu. perforatum n. sp. — Oblong-elongate, parallel, strongly convex, 

 shining, intense black throughout ; legs piceous ; antennae dark rufous. Head 

 short, rather strongly transverse, very coarsely, densely cribrate, the punc- 

 tures circular and generally narrowly separated, not longitudinally confluent; 

 apex transversely truncate, entire ; eyes moderate ; antennje slender, the third 

 joint aboi;t two and one-half times as long as wide, generally but very slightly 

 longer than the fourth. Prothorax from three-fifths to two-thirds wider than 

 long ; apex about five-sixths as wide as the base, evenly, feebly but distinctly 

 emarginate in circular arc, the angles right, not at all rounded and generally 

 slightly prominent, the sides behind them being very broadly, feebly sinuate ; 

 base transverse, very distinctly sinuate for a short distance at each side of the 

 narrow feeble median lobe ; basal angles right, not rounded and just visibly 

 prominent ; sides very feebly arcuate, straight in basal half, convergent ante- 

 riorly ; disk very slightly wider in the middle than at base, very coarsely, 

 deeply perforate, the punctures well separated near the middle but gradually 

 extremely dense and more or less longitudinally coalescent laterally. Elytra 

 just visibly wider than the prothorax and three times as long ; sides parallel 

 and nearly straight, broadly ogival at apex ; disk very coarsely, deeply 

 punctate in very approximate series near the sides, more sparsely, finely and 

 irregularly near the suture. Abdomen rather finely, sparsely punctate, the 

 last segment densely cribrate as in rufipes; metasternum moderately long, 

 coarsely, sparsely punctate. Lerjs long, the posterior tarsi distinctly shorter 

 than the tibiae. Length 6.5-7.7 mm. ; width 2.G-3.2 mm. 



Arizona. 



Allied to rufipes and replacing that species in the mountainous 

 regions of southern Arizona ; the series of fourteen specimens is 



