HEXACOLUS. 181 
1. Hexacolus setosus, sp. n. 
Oblongus, subnitidus, breviter pilosus, brunneo-testaceus, capite, prothoracis plaga apicali, elytrorum lateribus 
nigricantibus, subtus fusco-niger, antennis (clava excepta), coxis, pedibus brunneo-testaceis ; prothorace 
transverso, dorso subequaliter convexo, antice rugulis subasperatis, postice punctis ornato; elytris striato- 
punctatis, punctis brevissime setosis, interstitiis setis longioribus erectis exstructis. 
Long. 1°8 millim. 
Oblong, slightly shining, covered with short cinereous hairs. Head fuscous-black, scarcely convex in front, 
with rather long sparse pubescence, scantily and irregularly punctured and impressed over the mouth ; 
antenne testaceous-brown, the club infuscate, compressed oval, with slightly curved sutures. Prothorax 
distinctly broader than long, the base very finely margined throughout, the sides finely margined and 
subparallel behind the middle, rounded in front, the apex somewhat more obtuse ; disc uniformly convex 
from base to apex, testaceous-brown, with a fuscous apical patch, not reaching the margins and extending 
to the middle, thinly pilose with short decumbent hairs, with moderately strong and close punctuation, 
sparser towards the middle, the apex not asperate, the interspaces closely reticulate. Elytra a little wider 
than the prothorax and nearly twice as long, subtruncate at base with the borders narrowly elevated, the 
sides parallel to the hinder third, then subcircularly rounded ; surface convexly declivous behind the 
middle, brown-testaceous with the sides infusvate, finely punctured in feebly impressed rows, the punctures 
bearing minute decumbent hairs, interstices flat, with a single series each of erect slender setee. Underside, 
behind the prothorax, entirely black, scantily hairy ; legs testaceous-brown. 
Hab. Guatemaua, Cerro Zunil (Champion). 
One specimen. The basal margins of the prothorax and elytra are feeble, but are 
distinct with proper illumination. 
2. Hexacolus melanocephalus, sp. n. (Tab. VII. fig. 5.) 
Oblongus, glaber, subnitidus, supra brunneo-testaceus, capite, prothoracis plaga apicali, elytrorum sutura 
nigricantibus, subtus totus testaceus, vel fusco-niger, abdomine ultimo, coxis, pedibus brunneo-testaceis ; 
prothorace sat convexo, apice rotundato, declivi, anterius rngulis transversis subtilibus asperato, posterius 
sat dense punctato ; elytris lineato-punctatis, interstitiis planis vix subtilius seriato-punctatis, apice oblique 
convexe declivi. 
Long. 1°8—2 millim. 
Mas. Longior, subangustior, fronte impressa, pilosa; prothoracis antica parte subtilius rugulosa. 
Fem. Fronte convexiuscula, subglabra. 
Oblong, slightly shining, glabrous above. Head black, front (d)) impressed, rather thinly pubescent, the 
marginal hairs longer, closer, and directed forwards, the fundus longitudinally subcarinate ; front ( 2 ) 
subconvex, punctured, subglabrous, finely reticulate: mouth rufescent, fringed ; antenne short, scape and 
funiculus testaceous-brown, the latter with joints 2-6 very transverse, the club infuscate, subcompressed 
oval, thinly pubescent, the basal suture alone evident, curved. Prothorax about as long as broad, its 
base transverse, scarcely bisinuate, margined towards the rectangular hind angles, parallel-sided to before 
the middle with a fine lateral margin, thence narrowed and rounded to the apex; disc moderately and 
uniformly convex, testaceous-brown with a fuscous-black patch in front, extending back to the posterior 
third but not attaining the margins, and indistinctly bipartite in immature specimens, very finely asperate 
before the middle with small transverse rugee, obsolescent in the male, posteriorly with close and 
moderately strong punctuation, the interspaces finely reticulate. Scutellum rounded triangular, infuscate. 
Elytra a little wider at their widest point than the prothorax and one-half longer ( Q ), subtransverse and 
not margined at base, the humeral angles obtuse, the sides at first subampliated, then becoming nearly 
straight to the hinder third, thence gradually rounded to the apex, more obliquely in the male, in which 
the elytra are relatively a little longer; surface subconvex to the middle, thence convexly declivons, 
brown-testaceous, with the margins of the suture narrowly infuscate, glabrous, closely punctured in rows, 
