Goleopterological Notices, V. 3t3 



lands and lowlands. In outward appearance it bears a striking 

 resemblance to Calodera, but possesses none of the essential char- 

 acters of that genus. From Hygronoma it is at once distinguish- 

 able by the very long subfiliform antennas and abruptly bent tarsal 

 claws, resembling Diglossa in this latter peculiarity. 



Gyronycha is allied also to the Central American Bamona of 

 Sharp, but differs in its much more slender linear and depressed 

 form, wider neck, longer, relatively narrower elytra and short 

 tarsi, with a distinctly shorter basal joint. It is probable that 

 some of the species assigned to Bamona by Dr. Sharp should be 

 referred rather to the present genus ; in fact the sexual spine near 

 the base of the abdomen in Bam. robusta Shp., proves almost con- 

 clusively that this at any rate is a Gr3"ronycha. The falagrioid 

 form of the body in Bamona is especially alluded to in the original 

 diagnosis, but in Gyronycha there is no vestige of such a facies. 



The following species will serve as types of the genus : — 



Head narrower than the prothorax ; antennse very long. 



Third antennal joint obconical, elongate, fully as long as the second. 



Dorsal plates two and three broadly impressed and subimpanctate at base 

 through about one-half of their length ; male with dorsal carinse. 

 Prothorax wider than long, laterally rounded and narrowed in apical 



third Taleiis 



Prothorax nearly as long as wide, rounded and narrowed only in apical 



fourth ; body much narrower ; antennae more slender texana. 



Dorsal plates throughout feebly impressed only very near the base, fiat 

 and strongly, evenly punctate throughcnt ; male apparently without 



abdominal carinse OllSClira 



Third antennal joint shorter than the second fusciceps 



Head equal in width to the prothorax ; antennae more incrassate. 



Antennae long, the outer joints barely perceptibly wider than long ; third 



elongate, slightly shorter than the second lineata 



Antennae much shorter, more compact and strongly incrassate, not much 

 longer than the head and prothorax ; second antennal joint subequal 

 in length to the next two together ; eyes much smaller. 



Neck rather more than one-half as wide as the head ....attenuata 



Neck slightly more than one-third as wide as the head pertenuis 



G. ValeilS n. sp. — Parallel, depressed, somewhat wider than usual, 

 piceous-black, the elytra paler, clouded near tlie scutellum ; abdomen dark 

 rufo-testaceous, clouded with blackish near the tip ; legs very pale throughout ; 

 antennae black, paler toward base ; head and pronotum extremely minutely, 

 closely punctate, feebly shining, the former more sparsely punctate toward 

 the front ; elytra rather less finely, more strongly and much more excessively 

 densely punctate and alutaceous ; abdomen with the first four segments closely, 



