Coleopterological Notices, IV. C05 



with the finely and densely pubescent club, the latter moderate in 

 size, oval, with the basal joint rather large. 



The prosternum is flat, broad between the coxae, the latter sepa- 

 rated by their own width, the external sides of the cavities pro- 

 longed anteriorly for a short distance by deep and conspicuous 

 closed fissures, as noticeable in some other genera of the present 

 tribe; anteriorly, the apical constriction is totall}' obsolete, but in 

 its place there are the two deep and somewhat approximate fovea?, 

 with connecting groove, as in Onychobaris, each fovea being pro- 

 longed posteriorly for a short distance. 



The scutellum is moderate in size, flat and almost circular. Legs 

 moderately robust, the tibia? rather roughly sculptured and feebly 

 fluted externally ; but this character is apparently not very impor- 

 tant from a systematic point of view, as it recurs in several other 

 genera, not especially related, such as Limnobaris. Tarsi robust, 

 with the third joint very large and deeply bilobed, the claws small, 

 rather slender, free and divergent. 



] Pachyl>ai'is porosa Lee. — Proc. Am. Phil. Soc, XV, p. 302. 



Robust, convex, polished, black, the beak, legs and antennae more 

 or less rufo-piceous ; vestiture very sparse, consisting of minute 

 scarcely distinguishable setaj on the prothorax, and longer poste- 

 riorly recumbent and robust setae on the elytra, where they are 

 piceous in color and inconspicuous, very small but whitish on tl)e 

 under surface. Beak slender, strongly arcuate, striato-punctate, 

 lully as long as the head and prothorax in the female and quite 

 distinctly shorter in the male, the antennae moderate, the scape 

 short, first joint of the funicle as long as the next four, second a 

 little longer than wide and slightly longer than the third. Pro- 

 thorax short, two-thirds wider than long, the sides broadly rounded 

 and strongly convergent anteriorly, feebly constricted but not 

 tubulate at apex, becoming nearly parallel toward base, the latter 

 transverse, the median lobe small, prominent and truncate, the 

 truncation feebly emarginate to receive the scutellum; disk rather 

 coarsely, deeply but not closely punctate, without impunctate line. 

 Elytra scarcel}' perceptibly wider than the prothorax and three- 

 fourths longer than the latter, not quite as long as wide; outline 

 }tarabolic; disk with very coarse deep obsoletely crenulate grooves, 

 the intervals about one-half wider than the grooves, each with a 

 single series of very coarse deep rounded and cloiBe-set punctures. 

 Length 3.8-4.0 mm. ; width 2.3 mm. 



