44 PEOCEEDINGS OF THE NATIONAL MUSEUM vol. 82 



in front: elytra purplish; beneath dark brown, with a distinct 

 aeneous tinge. 



Head with the front slightly narrower than the transverse diam- 

 eter of the eye, slightly wider at top than at bottom, the lateral mar- 

 gins feebly converging from. top to bottom, moderately, longitudi- 

 nally depressed, the depression extending to the lateral margins, 

 but becoming obsolete on the occiput, and with a narrow, longi- 

 tudinal groove extending from epistoma to vertex ; surface glabrous, 

 feebly, densely reticulate, very sparsely, coarsely, irregularly punc- 

 tate ; eyes moderately convex ; frontal pores large, narrowly separated ; 

 epistoma very narrow between the antennal cavities, strongly ele- 

 vated, the antennae nearly contiguous. 



Pronotum moderately convex, two and one half times as wide as 

 long at base, distinctly narrower at apex than at base, widest at 

 base; when viewed from above, the sides obliquelj^ narrowed from 

 base to apical angles; posterior angles rectangular, not projecting; 

 anterior margin broadly, arcuately emarginate; base feebly, trans- 

 versely sinuate to middle of each elytron, then turning obliquely 

 backward to the scutellum, in front of which it is vaguely, arcu- 

 ately emarginate ; surface uniformly convex, glabrous, vaguely retic- 

 ulate, sparsely, coarsely, irregularly punctate. Scutellum large, 

 triangular, the anterior margin vaguely rounded, the surface smooth. 



Elytra moderately convex, as wide as pronotum at base; humeral 

 angles obtuse; sides arcuately narrowed from the humeral angles 

 to the tips, which are conjointly broadly rounded, the lateral mar- 

 gins vaguely serrate; humeri rather prominent; surface glabrous, 

 slightly rugose at the sides, rather densely, coarsely, irregularly 

 jDunctate, the punctures coarser, more or less arranged in longitu- 

 dinal rows on the basal halves toward sutural margins. 



Abdomen beneath finelj^, densely reticulate, sparsely, finely, irregu- 

 larly punctate, very sparsely clothed with short, recumbent, white 

 hairs ; last segment broadly rounded at apex, with the apical groove 

 deep and following the outline of the lateral margins. Prosternum 

 feebly reticulate, the anterior margin subtruncate or vaguely 

 rounded; prosternal process moderately wide, sparsely, coarsely 

 punctate, clothed with a few white hairs, the sides nearly parallel 

 (vaguely constructed at coxal cavities), broadly rounded at apex. 



Length, 2.5 mm ; width, 1.25 mm. 



Type locality. — Tegucigal])a, Honduras. 



Type and paratype. — U.S.N.M. No. 49577. 



Remarks. — Described from two males (one type) collected at the 

 type locality, June 25, 1918, by F. J. Dyer. 



This species is allied to variabilis Waterhouse, but it differs from 

 that species in coloration and in having the front of the head nar- 



