Coleopterological Notices, IV. 663 



the vestiture extremely unevenly distributed, consisting- of a cluster 

 of elongate fulvous squamules among the deep coarse punctures 

 occupying the lateral portions of the anterior thoracic constriction, 

 also at the base before the scutellum and along the margin toward 

 the sides, also with a few similar squamules near the base of the 

 third and fifth elytral intervals; elsewhere on the upper surface, 

 with the exception of the few widely scattered white scales of the 

 elytra, the setge are very minute. Head almost impunctate, the beak 

 sparsely but deeply so, separated from the head by a transversely 

 arcuate shallow but sharply defined groove. Protborax finely, fee- 

 bly and very sparsely punctate, as long as wide, convex, the sides 

 feebly convergent from the base nearly to the apex and straight; 

 base strongly, anteriorly oblique from the scutellum to each basal 

 angle, the median lobe nearly obsolete. Elytra about one-half 

 wider than the prothorax and nearly twice as long; sides about 

 equally and strongly convergent anteriorly to the base of the pro- 

 thorax, and posteriorly to the very narrow subtruncate and con- 

 jointly arcuate apex, the sutural notch completely obsolete. Length 

 4.8 mm. ; width 2.5 mm. 



Texas — Cab. LeConte. But two specimens are known, one of 

 which is in the cabinet of Dr. Horn. 



ZYGOBARIS. 



LeConte— Proc. Am. Phil. Soc, XV, p. 317. 



A single widely isolated subtropical species, with coarsely punc- 

 tured elytral striae and very long .slender strongly arcuate beak, 

 alone constitutes this genus as far as known. LeConte placed here, 

 also, several other small and obscure forms ; these, however, belong 

 to widely diverse genera, and have been described under the preced- 

 ing Oligolochus and Idiostethus, and Catapastus which follows. 



Zygobaris may be distinguished easily by the structure of the 

 tarsal claws, which are moderate in length and completely connate, 

 without trace of suture, through at least one-third of their length. 

 The mandibles are small, thick, arcuate, notched at apex and strongly 

 decussate. Prosternum flat, separating the coxa? by about their 

 own width, the subapical constriction feeble and only visible later- 

 ally, represented in the middle by a small, moderately deep, sub- 

 transverse fovea, limited at each side by a small longitudinal ridge. 

 Other i-eneric characters are mentioned below : — 



