310 STUDIES IN ALAUDES (cOLEOPTERA; TENEBRIONIDAE) 



Elytra slightly more than three times as long as the pronotum, base equal to 

 the pronotal base ; sides moderately arcuate and parallel, arcuately convergent 

 in apical third, apex obtusely ogival; disk evenly and moderately convex, punc- 

 tures coarse and round, distinctly serial in arrangement and separated by a 

 distance equal to their diameter or a little less, sutural series shghtly impressed, 

 sutural interval feebly convex and passing more or less on to the scutellar 

 dechvity, surface punctate to base, punctures somewhat obsolescent behind 

 the scutellum, the latter narrow and transverse; marginal scales almost widest 

 at apex, triangulo-clavate in form, those of the central area clavate and more 

 rounded at apex, becoming more hnear about the scutellar region, scutellar 

 hairs few, long and slender. 



Measurements. — Length, 1.6 mm.; width, 0.6 mm. 



Habitat. — Goldfield, Esmeralda County, Nevada. Collected 

 October 18, 1907. Found in ant's nests by Mr. F. W. Nunen- 

 macher. 



Type in the author's collection. Paratypes in Mr. Nunen- 

 macher's collection. 



Squamosa is more parallel than singularis. The elytral base is 

 equal to the pronotal base in both species. In squamosa the 

 basal angles of the pronotum are not prominent laterally, and are 

 obtuse, including the investing scales; sides moderately rounded 

 anteriorly and frequently subangulate at point where convergence 

 begins. Pronotal margin with short, stout truncate scales which 

 are semi-erect. 



The elytral scales are stouter apically, somewhat rounded or 

 nearly truncate at apex, narrowing more rapidly at base; the 

 marginal series may be described as triangulo-clavate, while those 

 of the central area are more or less clavate to fusiform. The 

 punctures are less perforate than in singularis. 



Alaudes setigera new species 



Form slightly robust, oblong-oval and less depressed. Color brownish cas- 

 taneous. Vestiture consisting of densely placed and appressed scales on the 

 head and pronotum, and of slelader, erect hair-like setae on the elytra. 



Head transverse, about a half wider than long; front moderately and evenly 

 convex, broadly and feebly impressed laterally near the basal angles, the latter 

 subacute and distinctly more prominent laterally than the anterior angulation, 

 sinuation rather sharply subtriangular ; apical margin broadly sinuate at 

 middle, lobes evenly rounded, edge moderately narrowly subdiuphaiious; base 

 broadly arcuate and feebly sinuate laterally, adapted to the pronotal apex. 



Pronotum about twice as wide as long; sides prominent and rather strongly 

 rounded in ajjical half, thence converging and broadly sinuate, becoming 

 parallel in about Imsal fifth; apical angles quite broadly rounded and continuing 



