Coleojiterological Notices. 341 



antennae slender, the third joint very elongate. Prothorax three-fourths to 

 four-fifths wider than long, the apex slightly narrower than the base, evenly 

 but feebly emarginate, the angles rather acute and prominent ; base trans- 

 verse, feebly bisinuate in the middle, the basal angles slightly obtuse, not in 

 the least rounded ; sides rather strongly, evenly arcuate, more convergent and 

 straighter near the apex ; disk feebly, transversely impressed just before the 

 base, rather longitudinally convex, somewhat finely but strongly, sparsely 

 punctate, the punctures becoming gradually coarser, scabrous and extremely 

 densely crowded laterally. Elytra slightly but distinctly wider than the pro- 

 thorax and about three and one-half times as long, at base but just visibly 

 wider than the contiguous base of the latter, the humeri ver}' slightly exposed, 

 obtusely subangulate ; apex broadly, obtusely rounded ; sides jjarallel and 

 straight, feebly convergent and arcuate toward the humeri ; disk with distant 

 and somewhat uneven unimpressed series of punctures, the latter very fine 

 and not very close-set near the suture, but becoming coarse, rather scabrous, 

 extremely approximate and more irregularly placed toward the sides and 

 especially toward the humeri ; intervals more finely, sparsely and very feebly 

 punctate. Abdomen finely punctate ; metasternura very densely punctate later- 

 ally, fully one-half longer tlian the first ventral segment. Leys slender. 

 Length 1.3-1.1 mm. ; width 3.2 mm. 



Arizona. 



This species is to be placed near muricatiilum, but differs greatly 

 in its more robust and convex form, alutaceous lustre and \-ery 

 much denser, coarser and more coalescent punctuation toward the 

 sides of the body. The lateral eniarg-inations of the epistoma are 

 ver}' feeble ; they are normally developed in muricatiilum. 



En. niliricatullini n. sp. — Oblong, elongate, subparallel, moderately 

 convex, shining, piceous-black ; under surface, legs and antennae dark rufous. 

 Head short and transverse, narrowed from base to a2)ex, the latter truncate 

 and with two very feeble distant emarginations ; surface finely, rather feebly, 

 somewhat densely and submuricately punctate ; eyes moderate, rather dis- 

 tinctly prominent ; antennae long and slender, the third joint very elongate, 

 the fourth shorter. Prothorax three-fourths to four-fifths wider than long; 

 apex slightly narrower than the base, feebly, evenly but distinctly emargi- 

 nate, the angles not at all rounded, slightly obtuse when viewed laterally but 

 acute and prominent vertically ; base transverse, with the two approximate 

 median sinuations rather pronounced ; basal angles obtuse, not rounded ; 

 sides moderately arcuate, more convergent anteriorly ; disk a little wider 

 slightly behind the middle than at base, very finely, sparsely punctata, with 

 a narrow impunctate line, the punctures becoming gradually coarser and 

 muricate but still small and rather well separated laterally. Elytra somewhat 

 distinctly wider than the prothorax and four times as long or slightly less ; 

 humeri exposed, obtuse but not rounded ; sides parallel and feebly arcuate, 

 rather obtusely rounded at apex ; disk with distant series of small, approxi- 



