FALL AND COCKERELL. 



237 



• The type is a female, and has the fifth ventral broadly evenly 

 arcuate at apex. With the type are associated a male from Soledad 

 Canon (Ckll.), and a female from Fresnal Canon (Knaus), both of 

 which are in not very good condition. In both of these the antennae 

 are distinctly stouter, the outer joints obviously transverse, and it is 

 quite possible that the Fresnal Canon specimen at least represents a 

 distinct species. 



In the type there are a few darker hairs along the middle of each 

 elytron, but they are not sufficiently pronounced to give the effect of 

 adiscal vitta. The species would seem to fall near texanus by 

 Casey's table, the latter species being larger, blacker because of the 

 sparser gray hairs, and more abundant black bristles, and with less 

 slender antennse. 



Tricliochrous mixtus n. sp.-Dark brown, legs bright rufous through- 

 out, anteuiiffi pale at base, piceous externally. Integuments shining through- 

 out; pubescence rather dense, consisting of confusedly mingled ochreous and 

 cinereous hairs, which are subdecumbent in great part; the erect hairs short and 

 inconspicuous, except near the lateral margins, and for the most part ochreous in 

 color; pronotal fringe long, bristling and irregular. Head and prothorax finely 

 sparsely punctate, the punctures separated on the average by about twice their 

 own diameters; elytral punctuation a little coarser and closer. Autennse {%) 

 much longer than the head and prothorax. very strongly acutely serrate ; last 

 joint narrowly fusiform, widest at middle, and about equal in length to the two 

 preceding united. Prothorax very nearly one-third wider than long, narrowed 

 anteriorly, basal angles very obtuse but evident, apical angles not defined. Elytra 

 parallel, twice as long as wide, about one-quarter wider than the prothorax and 

 three-times as long; apex obtusely rounded. Prosternum slightly longer before 

 the coxse than the thickness of the latter. Abdomen finely punctured and with 

 rather dense appressed pale pubescence. Length 3i-4 mm. 



Alamogordo (Viereck). 



In the male the fifth ventral is broadly truncate, the inner spur 

 of the middle tibia is very broad, and that of the front tibiae dis- 

 tinctly enlarged, and the erect hairs of the upper surface are more 

 obvious. In the female the antennae are shorter than in the male, 

 but unusually long for the sex, extending a little beyond the elytral 

 base; the fifth ventral is truncate, with the faintest possible indica- 

 tion of a median angulation, the tibial spurs all slender. 



By Casey's table this species might perhaps best be placed before 

 hirtellus, though conspicuously differing from that and neighboring 

 species by the feebly developed longer hairs of the upper surface 

 especially in the female. 



TKANS. AM. ENT. SOC. XXXIII. JULY, 1907. 



