250 GEO. H. HORN. 



middle aud hind feet are all very uearly alike, the tip of the claw being some- 

 what irregular, the tooth at base rectangular or slightly acute. 



The claws of the female are more slender and less curved than the male, and 

 the base is merely slightly broadened without distinct tooth. 



This species resembles Hamiltoni in foim and sculpture, and very 

 nearly in coloration; there is, however, no thoracic piceous space, 

 which seems to be (piite characteristic of Hamiltoni. The males of 

 the two species are distinguishable by the form of the claws, the tooth 

 of the anterior claw being much more everted here than in any other 

 species. As is usual with all pale species the head is much darker 

 in the female than in the male. 



Occurs in Illinois, Dakota, Wyoming, Nebraska and California. 



P. refle.'KipeiiiiiN Zimm. — Oblong, subdepressed, sides of elytra especially 

 near the apex slightly explauate, color yellowish or pale piceo-testaceous, moder- 

 ately shining. Thorax moderately closely punctate, the anterior arcuate and 

 posterior transverse series of larger punctures scarcely evident. Elytra more 

 coarsely punctured than the thorax, less closely near the apex, the usual series 

 of larger punctures discernible, but indistinct. Body beneath and femora pice- 

 ous, tibiffi and tarsi pale. Length .14 — .18 inch ; 3.5 — 4.5 mm. PI. iii, fig. 12. 



The mesosternal lamina is not large, the lower edge oblique, the front edge ob- 

 lique and slightly sinuous, the free angle is somewhat mucronate. 



The claws of the front tarsi of the male are dissimilar, the anterior claw hav- 

 ing a rather long and acute tooth, the posterior strongly angulate at base. The 

 middle claws are like the anterior, but the tooth and angulation are less marked. 

 The posterior claws are dissimilar, and both have a well marked tooth at base, 

 the free portion of the tip forming an angle with the basal portion and is some- 

 what sinuous. 



In the female the claws are dissimilar on all the feet and have merely a slight 

 angulation at base as in the posterior middle claw of male. 



This is the only species at present known to me in which the head 

 is always and entirely pale like the remainder of the surface. 



Occurs on the sea-coast of Delaware and New Jersey (Dr. Ham- 

 ilton). One from Bennington, Vt., has been sent me by Mr. C. H. 

 Roberts. 



HENOCH A RES Mais. 



The differences between this genus and Philydrus are extremely 

 small, and are practically reduced to the form of the pseudo-basal 

 joint of the maxillary palpus. In this genus it is curved with the 

 concavity to the front and the palpi themselves are longer and more 

 slender. PI. iii, fig. 1. 



The cephalic and thoracic sculpture is about the same in the two 

 genera, but we here observe quite commonly, but by no means con- 



