UHLER ON INSECTS. 439 



Head long-, anteriorly oblique, moderately long- and narrow, the eyes 

 very obliquely prominent; vertex a little rugulose, the front dull, some- 

 what shagreened and flattened; the tylus a little prominent, cylindrical, 

 highly polished ; the throat concave. Antennte short, stout, the basal 

 joint short, stout, black, yellow at tip ; the second joint yellow, about as 

 long' as the third and fourth united, much more slender than either of 

 the others, a very little thicker at tip ; third joint much thicker, both 

 third and fourth joints subfusiform, black, more conspicuously hairy 

 equally thick, much longer than the basal one, the last a little longer 

 than the preceding. Eostrum reaching to the tip of the posterior coxae, 

 rufo-piceouS, paler at tip. Pronotum sub-campanulate, long and narrow, 

 ■with the disk much elevated, very convex, occupying all of the surface 

 excepting the very narrow posterior lobe, twice indented in the center, 

 bounded behind and each side by a deep, transverse, coarsely punctate 

 line, the posterior lobe consisting of only a slightly elevated linear tablet 

 on the posterior margin, the margin proper moderately concave, the 

 angles produced, acute ; the sides deeply decurved, with the edge nar- 

 rowly recurved, thinning out anteriorly, and bending down at the ante- 

 rior end; the anterior margin truncate; the submargin with an im- 

 pressed, punctate line. Scutellum strongly elevated at base, a little 

 rugulose, deeply depressed on the middle and posteriorly. Legs and 

 coxsB bright yellow, the femora faintly tinged with brown, and the tips 

 of tibise and tarsi piceous. Venter black, minutely pubescent, the apex 

 a little tinged with piceous. Corium and membrane coalescing, both 

 coriaceous, long and narrow, convexly arched, deflexed on the sides, the 

 part representing the membrane running off to an oblique rounded tip, 

 with the nervures almost effaced. 



Length to tip of venter 4^ millimeters ; to end of hemelytra 4| mil- 

 limeters. Width of base of pronotum 1^ millimeters. One specimen 

 from the vicinity of the Saskatchewan Eiver, collected by Robert Ken- 

 nicott. 



This is surely only the dimorph of the form with perfectly developed 

 membrane. In the preceding species, parallel forms occur, the one with 

 a distinct membrane and the other with the membrane thickened and 

 almost as coriaceous as the corium proper; also, the bounding nervure 

 is foint and almost obliterated, almost the same as in this form of S. 

 crassicornis. 



In the present specimen, the nervules of the membrane are very in- 

 distinct. 



1). Membrane distinct fromthe corium ; 'pronotum semilunately trapezoidal 

 and wide : 



10. S. Uttoralis. 



Civiex Uttoralis Linn., Fauna Suec, 246, No. 915 ; Syst. Nat., 481, No. 14. 

 Salda Uttoralis Fieb., Europ. Ilemipt., 147, No. 15. 



Ovate, rather dull black, clothed above and beneath with closely 



