NORTH AMERICAN COLEOPTERA. 9 



confusedly roughened near the basal angles ; median line nearly obsolete. 

 Elytra at base as wide as the prothorax, two-thirds as long again as wide, 

 evenly rounded behind, leaving the pygidium exposed ; sides parallel and 

 feebly arcuate ; surface evenly and strongly striate, interspaces moderately 

 convex. Scutellum extremely small, angulated behind. Pygidium finely 

 punctate. Legs moderate, black, tarsi very dark blackish-fuscous, first joint 

 of anterior nearly equal in length to the second and third together, slightly 

 shorter than the last ; posterior tarsi long and slender, first joint distinctly 

 longer than the second and third together, fourth joint very small. Length 

 11.0 mm. 



Eastern Pennsylvania; one specimen, %. 



I have only succeeded in finding one representative of this species, 

 which seems to be very distinct by reason of the structure of tlie hind 

 tarsi ; the mandibles are very large and robust, and are very blunt at 

 the tips, as if worn by long usage. It greatly resembles at first sight 

 several species of Anisodactylus. 



The parasite of this species is very small, as long as the diameter 

 of the first tarsal joint ; it is narrowly oval, moderately convex, highly 

 polished, and cinereo-testaceous in color ; upon each side there is a 

 distinct impressed puncture, and there appears to be a transverse 

 segmentation in the anal region. 



H. manliattailis n. sp. — Form rather slender, very convex. Entire 

 body and legs, with the exception of the tarsi, deep black, the latter dark 

 reddish-testaceous. Head large, convex, and highly polished ; eyes small 

 and rather distant from the posterior angles ; labrnm very feebly and nar- 

 rowly sinuate anteriorly, nearly one-half wider than long; epistoma bearing 

 one large setigerous puncture at each anterior angle, posterior transverse 

 suture very feeble ; antennae as long as the width of prothorax, first joint 

 reddish-testaceous, remaining joints much darker, fuscous, pubescence short, 

 very coarse, close, fulvous in color. Prothorax one-third wider than the 

 head, convex, base and apex equal in width ; median line distinct throughout 

 the length of the pronotum ; anterior angles acutely rounded, posterior 

 broadly and evenly rounded ; punctures at the base rather feeble and con- 

 fused. Scutellum small, triangular. Elytra almost imperceptibly wider than 

 the prothorax, one-half as long again as the head and prothorax together; 

 disk convex, finely, evenly, and distinctly granulate ; striae very fine, inter- 

 spaces flat ; sides parallel and very feebly arcuate. Abdominal segments 

 very unequal in length, the last longer than the two preceding together. 

 Posterior trochanters scarcely more than one-third as long as the femur ; first 

 joint of anterior tarsi nearly as long as the next two together, that of the 

 posterior much longer than the second and third together. Length 10.5 mm. 



Staten Island, near the city of New York ; one specimen, % . 

 This species somewhat resembles fimestns, but it is very much less 

 robust than that species, and differs in several other characters. The 



