42 TIIOS. L. CASEY. 



equal to nearly one-half its width at base, which is broadly, evenly, 

 and rather feebly emarginate. The front tibiae are strongly prolonged 

 anteriorly in both this species and in piceum; in the latter species 

 the interior terminal teeth are slightly curvate, and are arranged in 

 a right line with the point of juncture of the first tarsal joint ; in the 

 present species, however, they are in a straight line, which is at right 

 angles to that position. 



In the present chaotic state of this portion of the Tenebrionidae 

 it seems scarcely warrantable to generically separate these species, so 

 very similar in facies, on such a trivial character. The punctures of 

 the head in the above-described species are very shallow and variolate. 



E. papagoiium n. sp. — Form rather strongly elongated, couvex ; 

 puliesoeuce of elytra consisting of exceedingly short and sparse, erect setae, 

 which are rather fine and arranged serially ; general tint of upper surface 

 piceoiis-black, under surface slightly paler, rufous, legs and antennae rufous. 

 Head distinctly broader than long ; punctures of upper surface round, nearly 

 evenly distributed between the eyes, raoj-e closely crowded anteriorly, vario- 

 late, separated usually by their own widths ; anterior margin transverse or 

 just perceptibly emarginate in the middle, broadly rounded at the sides ; 

 labrum transversely truncate in the middle, sides divergent and slightly 

 arcuate, lateral angles rather pronounced ; supra-ocular ridges strongly 

 developed and curving outward anteriorly ; antennae distinctly longer than 

 the anterior width of prothorax, third joint distinctly longer than the fourth. 

 Prothorax four-fifths wider than long ; anterior margin just perceptibly 

 shorter than the base, the latter transverse and distinctly trisinuate, the 

 former just perceptibly emarginate, sinuate near the apical angles ; anterior 

 and posterior angles very acute ; sides feebly arcuate, straight near the apical 

 angles ; disk very convex, rather distantly and finely punctate in the middle, 

 where the punctures are impressed, becoming much larger, shallower, and 

 elongated at the sides, where they are closely crowded, variolate, and scab- 

 rous ; pronotum margined anteriorly and posteriorly, narrowly rellexed at 

 the sides ; edges acute. Elytra at base slightly wider than the contiguous 

 pronotum ; sides nearly parallel and almost straight for three-fourths of the 

 lengtli from the humeri ; disk very convex, more than three times as long as 

 the pronotum, rather acutely rounded behind, minutely, feebly, and evenly 

 punctate in the middle, punctures arranged in rows, larger and closer at the 

 sides, shallow, round, and variolate ; the surface is also minutely and irregu- 

 larly creased, minutely granulose, minutely undulated, and, at the sides, 

 covered with minute elevated points ; shining. Under surface of the abdo- 

 men minutely punctate, very closely so on the last segment ; prosternum 

 coarsely punctured. Legs rather long; first joint of the posterior tarsi dis- 

 tinctly shorter than the last, longer tlian the second and third together, the 

 latter equal in length. Length (3.5 lum. 



Arizona (IMorrison). 



The mentum of this species is broadly rounded in front, with ex- 

 ception of a sinuation at the immediate apex, equal in length to one- 



