452 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



margin, and a trace on the outer margin, and the tip with a transverse 

 black spot; nervures black; middle areole with an oval spot near the 

 outer nervure, basally, around one a little way behind this, a few specks 

 behind the middle, a dot near the apex inwardly, and a dot near the 

 inner tip of the clavus pale yellow; membrane pale yellow, a little 

 clouded at base and on the apical margin, the apex with a piceous spot 

 on the apex of the outer areole ; nervures piceous ; the areoles with a 

 transverse series of oblong fuscous spots (sometimes the spots are in- 

 terrupted, forming a partially double series). Venter black, clothed with 

 prostrate white pubescence, the posterior margin of the segments slen- 

 derly piceous ; the apical segment of the female broadly white. 



Length to tip of hemelytra 3-3J millimeters. Width of base of pro- 

 notum 1^ millimeters. 



Common in Maryland, within the limits of the metamorphic belt, 

 upon damp sand formed by the disintegration of the rocks, near creeks 

 and brooks, in June and July. It is also common in Northwestern and 

 !N"orthern Florida ; and specimens have been sent to me from Texas, 

 Illinois, and Pennsylvania. I have also collected it in Cambridge, 

 Mass., and in the vicinity of Washington, D. C. It occurs like- 

 wise in Western North Carolina and in Georgia. It is of precisely the 

 same form as S. cincta H. Schf. of England and France, agreeing with 

 that species in most of its details, and, upon sufficient comparison, may 

 prove to be the same species. 



Family VELIID^. 



Hebrus Curtis. 

 H. sohrinus, new sp. 



Kobust, brunneo-fuscous, beneath mostly blackish-piceous, with the 

 sternum, coxae, and legs testaceous. Head stout, not so long nor so 

 tapering as in H. pusillus Fallen ; the vertex and face very convex, at 

 the tip thickly hairy. Antennae dull testaceous, pubescent ; the basal 

 joint thickest, narrowed at base, longer than the second; the third 

 longest, slender, of the same thickness as the succeeding ones. Under 

 side of the head and bucculse dull testaceous; the rostrum slender, 

 reaching upon the venter, dull testaceous. Eyes dark brown, with few 

 and coarse facets. Pronotum broader than long, flattened ; the humeri 

 well defined by a brown sulcus; impressed line between the lobes dis- 

 tinct, as also the three indentations upon the center, those each side 

 less distinct; the surface very minutely punctate. Pleurae darker, 

 having a few, very remote, coarse punctures. Venter smooth, black- 

 piceous, densely sericeous pubescent, margined with dull fulvous. Hem- 

 elytra pale brownish, minutely pubescent; the nervures thick, darker; 

 the costal margin almost straight, a little incurved near the tip ; mem- 

 brane scarcely reaching the tip of the venter, pale, dull brown, slenderly 

 margined with paler brown. Tergum fuscous, whitish, sericeous pubes- 

 cent, the reflexed margins yellow. 



