TENEBRIONID/E 185 



by the strongly reflexed sides, which are narrow anteriorly, becoming 

 very broad basally, the edge thick, perfectly even and finely punc- 

 tate; sides becoming parallel and feebly arcuate behind the middle; 

 surface broadly, evenly convex, very finely and rather sparsely 

 punctulate, the steeply reflexed sides coarsely, subrugosely punctate; 

 scutellum short, very broadly angulate; elytra three-fifths longer 

 than wide, gradually evenly and obtusely ogival and gradually 

 moderately declivous behind, without apical lobe from above, 

 parallel, the sides feebly arcuate, the side margin narrowly and 

 strongly reflexed, becoming very much elevated toward the basal 

 angles, which are covered by the thoracic angles; posteriorly the 

 margin is even and continuous to the apical angles; surface nearly 

 smooth, evenly convex, minutely and sparsely punctulate; abdomen 

 more shining, finely, sparsely punctate; epipleura becoming narrow 

 and concave at the elytral apex. Length (cf) 12.5 mm.; width 

 6.2 mm. Mexico (Colonia Garcia, Chihuahua), C. H. T. Town- 

 send *townsendi n. sp. 



The prosternum is feebly concave between the coxae, gradually 

 strongly declivous posteriorly, descending vertically upon the 

 anterior margin of the mesosternum. 



* Asidopsis n. gen. 



This genus is a large one and somewhat composite in external 

 facies, but the species hold together in many important characters, 

 showing that they constitute a true genus and not one or more 

 arbitrary sections of Asida. The body is generally stout and 

 oblong-oval but may be slender, as in macra, usually convex but 

 sometimes almost flat above, as in some of the opaca group and in 

 planata which is provisionally included, always glabrous or virtually 

 so. The mentum is more or less small, obtrapezoidal, leaving a 

 vacancy between its sides and those of the buccal opening, which 

 becomes wide in some of the polita group, the gular support rather 

 narrow, high and sinuate, the ligula swollen, angularly incised and 

 non-retractile, the eyes of the usual type in this part of the series, 

 having the anterior margin faintly sinuate, and the labrum is 

 narrowly sinuate at tip and moderately transverse. The antennae 

 are more or less stout, gradually broadening through joints eight 

 to ten, black, setose and not much compressed except apically. 

 The legs are moderate in length, slender, with the usual small stiff 

 hairs, the tarsi rather long, slender, much longer in the male than 

 in the female in the quadricollis group, more or less minutely 



