422 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



rounded off, destitute of a carina ; the posterior margin a little arcuated,, 

 declivously rounded, with the lateral angles prominent, subtubercular, 

 acute. Propleurse punctate, rugulose, tinged with rufous ; meso- and 

 meta-pleurf© impunctate, dull rufous. Coxse and legs yellow, the tibite 

 tinged with rufous. Scutellum chestnut-brown, yellow at tip, finely 

 pubescent, closely, minutely punctate, feebly rugulose. Corium and 

 clavus yellow, with a brown transverse spot at base, omitting the outer 

 margin, and a larger band extending from the middle to the tip 

 obliquely, and omitting the forward part of the costal margin and the 

 basal suture of the cuneus, but covering the cuneus ; the surface min- 

 utely, evenly, densely rugulose and punctate, and finely whitish pubes- 

 cent 5 abdomen rufous or pale brown, finely pale pubescent; membrane 

 dusky, pale at base. 



Length to tip of venter 2-2:^^ millimeters ; to tip of membrane 2^-3 

 millimeters. Width of pronotum 1^-1^ millimeters. 



Two specimens were swept by me from bushes near Manitou, August 

 13. It occurs also in Texas ; Missouri ; Illinois, near Eock Island ; in 

 York County, Pennsylvania, in Jane, on hickory. In Maryland, it be- 

 longs to the central faunal district, and may be found in July, some- 

 times abundantly, on the Carya alba Mich. It varies very much in the 

 depth and distinctness of the colors, and in the size of the brown bands 

 of the hemelytra. The specimens from Colorado are lighter but more 

 clearly colored than the average of specimens from Maryland. One 

 specimen from Manitou, July 16, collected by Dr. A. S. Packard, jr. 



Plagiognathus Fieber. 

 P. ohscuriis. 



Flagiognathus oisciirus Uhler, Fifth Ann. Rep.U. S. Geol. Surv. for 1871, 1672, p. 418. 



Found in the American Pork CaSou, Utah, by Dr. Packard, on 

 July 22. 



Comparison with sufficient series of the European species may show 

 that this is only a form of one of them. It agrees in many respects 

 with P. hohemanni Fallen, belonging to Switzerland and other parts of 

 Central Europe, but the only specimens of that species in my collection 

 are too much damaged to admit of full comparison. 



PffiCiLOSCYTUS Fieber. 

 P. sericeiis, new sp. 



A little less robust than P. unifasciatus Fab., with the sides of the heme- 

 lytra straighter. Clay-yellow, more or less tinged with brown or rufous, the 

 upper surface, excepting the head, minutely and closely scabrous, finely 

 punctate, golden sericeous pubescent. Head almost vertical, gently 

 curved in front ; eyes large, dark brown, the tylus curving down, prom- 

 inent, with the incision of the base and sides very deeply cut, black or 

 piceous, highly polished, narrowing iuferiorly; the surface yellow, 

 smooth, golden pubescent with a series of oblique wrinkles, colored 

 brown, each side of a central, longitudinal, low ridge; vertex and cheeks 



