1878.] 433 [Uhler. 



One specimen now remains in the collection. I have seen specimens 

 from Canada West, New Hampshire, Massachusetts and Pennsylvania. 

 S. coriacea. 



Form of* S. littoralls Linn, of Europe. 



Uniform black, highly polished. Cranium broad, densely, minutely 

 shagreened, minutely pubescent, faintly grooved on the middle line; 

 before the ocelli are two raised tubercles, placed far apart ; face hairy ; 

 tylus and labrum yellowish, the rostrum piceous, reaching to the pos- 

 terior coxae; eyes large, prominent, brown, very oblique; antennas 

 black, slender, the second joint sometimes pale piceous, more than 

 twice as long as the basal joint; the third and fourth subequal. Pro- 

 notum trapezoidal, very narrow anteriorly, the sides very oblique, 

 hardly arcuated, the lateral edge broadly recurved ; the surface mi- 

 nutely shagreened, pubescent; callosities obsolete, their locality a lit- 

 tle convex, with an indented, punctured transverse line behind; pos- 

 terior angles acute, the posthumeral margin very acutely oblique. 

 Legs honey-yellow, infuscated on the tip of tibiae and on the ends of 

 the tarsal joints. Pectus highly polished, remotely, minutely pubes- 

 cent, minutely wrinkled. Scutellum minutely, densely granulated. 

 Hemelytra very convex, widest far behind the middle, very highly 

 polished, remotely, coarsely, rather obsoletely punctured; the clavus 

 bounded on the inner submargin and outer suture by an indented line 

 of punctures; membrane coalescing with the corium, indistinctly pice- 

 ous, and with three faint yellowish spots between the longitudinal 

 nervures, near the tip. Venter brilliant black, closely, minutely 

 punctured, clothed with sparse, fine pubescence. Length, 6-7 millims. 

 Humeral breadth, 2 millims. Extreme width across hemelytra, 3\ 

 millims. 



No. 63, Harris' Collection. "Acanthia coriacea Say, MSS.;" named 

 by himself. 



Some specimens have large yellow spots on the posterior margin of 

 the antepectus, and yellow coxae ; the femora have a broad black cloud 

 on the under side. Two specimens now belong to the collection, both 

 of which appear to be males. 



" Cambridge, Mass., June 20, 1834. Salem, Mass., Dr. Picker- 

 ing. Near water in ^Cambridgeport, July 20, 1836. On sand near 

 water." 



This species extends far north in British America, and is not un- 

 common in New England and Pennsvlvania. 



