and Central American Malachiidae and Melyridae. 101 



Hab. Mexico, Pinos Altos in Chihuahua {Buchan- 

 Hepburn). 



One male, doubtfully referred by Gorham to T. fuscus 

 (Lee). Separable from the allied Mexican forms by the 

 greatly developed prothorax in the male, the large eyes, 

 the short, stout, strongly serrate antennae, the parallel- 

 sided, comparatively short, densely rugulose, dull elytra, 

 the dense, double vestiture, and the distinctly spinulose 

 tibiae. 



11. Trichochrous fuscovittatus, n. sp. 

 Pristoscelis suturalis, Gorh., Biol. Centr.-Am., Coleopt. iii, 

 2, p. 327 {nee Lee). 



(J. Oblong, robust, shining; black, the mouth-parts, antennae 

 and palpi (except at the tips), and legs, and the epipleura (except 

 at the base) and apical margin of the elytra, ferruginous ; the head, 

 prothorax, and scutellum, and the suture, sides and apex of the 

 elytra, thickly clothed with long, adpressed, cinereous hairs inter- 

 mixed with extremely long, fine, pallid, erect hairs, the disc of each 

 elytron broadly fusco -pilose (thus appearing vittate), the marginal 

 cilia extremely long and fine. Head closely, minutely punctate, 

 the epistoma smooth and tumid in the middle; antennae short, 

 rather slender, joints 5-10 triangular, transverse, 5 much wider 

 than 4 or 6. Prothorax convex, broader than long, strongly 

 rounded at the sides, narrowed anteriorly, the angles obliterated; 

 closely, minutely punctate. Elytra moderately long, much wider 

 than the prothorax, subparallel for some distance below the tumid 

 humeri; closely, finely, asperato-punctate. Fifth ventral segment 

 unimpressed, broadly truncate at the apex. Legs long, rather 

 stout; tibiae spinulose externally, the anterior and intermediate 

 pairs with a stout truncated spur at their inner apical angle ; tarsi 

 elongate, setose, the basal joint of the posterior pair obliquely pro- 

 duced at the apex beneath. 



$. Head smaller; antennae much shorter, joints 5-10 strongly 

 transverse; prothorax smaller, more narrowed anteriorly; elytra 

 shorter, widened posteriorly; legs shorter, the tarsi not nearly so 

 elongate, the posterior pair simple. 



Length 3-3 J mm. (cj$.) 



Hab. Mexico, Northern Sonora (Morrison). 



Six males and one female. Casey (Ann. N. York Acad. 

 Sci. viii, p. 511) has re-described T. suturalis {— conformis), 

 Lee, from San Diego, Cahfornia, and it is obvious that the 

 Sonora insect has nothing to do with that species. The 



