372 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



compressed, subtriquetral when viewed from the edge. Venter obesely 

 convex, the segments beset with long, remote bristles; connexivum 

 compressed, sharp-edged, interrupted at the incisures, closely ciliated. 



T. conformis. 



Tricliocoris conformis Uhler, Bull. U. S. Geol. Siirv., vol. ii, No. v, p. 11. 



Oval, blackish-piceous, moderately convex above, hirsute, with long, 

 close, ferruginous hairs, those on the sides more dense ; the sides almost 

 parallel. Head flat, coarsely punctate in more or less oblique lines, or 

 irregularly punctate and wrinkled, clothed each side with long, remote, 

 erect hairs ; teeth of the submargin close-set, short, erect ; the tip of the 

 tylus armed with two teeth; apex of the clypeus quadrately emargin- 

 ate ; lateral margin and eyes reddish-brown. Antennse rust-brown, the 

 basal joints tinged with piceous, the third, fourth, and fifth joints partic- 

 ularly clothed with fine yellow pubescence ; basal j'oint barely reaching 

 the tip of the head ; second more slender, shorter, and more slender than 

 the third ; third somewhat long, gradually wider toward the tip ; fourth 

 aud fifth subequal, long ovate, stouter than the third. Eostrum ferru- 

 ginous, tinged with piceous, reaching behind the intermediate coxse. 

 Pronotum blackish-piceous, almost twice as broad as long, sometimes 

 tinged with rufo-piceous on the lateral margins, the anterior angles 

 curved forward, a -little rounded, the lateral margins straight, a little 

 oblique, the edge sharp, slanting downward, densely clothed with long 

 ferruginous hairs ; posterior margin subtruncate, the angles almost rect- 

 angles, a little rounded; surface variolosely punctate on the posterior 

 lobe and sides, the punctate portions invested with close, long hairs ; 

 the anterior lobe almost bald and destitute of punctures. Pronotum 

 with coarse, irregularly placed, mostly remote punctures, those of the 

 sides confluent in a broad, depressed line next the margin. Sides of 

 the prosternum anteriorly a little raised ; medio- and post-pectus coarsely, 

 remotely punctate. Corium broad, broader behind, finely, remotely, 

 obsoletely, on the exterior area more densely and deeply, punctate, in- 

 vested with long, remote hairs ; the lateral edge densely hirsute ; mem- 

 brane brownish. Legs rufo-piceous; the tarsi ferruginous and vefy 

 slender, the second joint being very small; anterior femora on the 

 upper side and exterior to the middle line with a series of broad, 

 shallow pits; the femora and tibise ciliated with long ferruginous bris- 

 tles. Venter obesely convex, polished, invested with long ferruginous 

 bristles, finely, remotely punctate ; sides of the segments more closely 

 punctate, and with a submarginal series of variolose punctures ; the 

 disk broadly impunctate. 



Length 5^-Gi millimeters. Width of base of pronotum 3-3| milli- 

 meters. 



From California, aud from near San Francisco. 



This form is much more hairy than any other that has thus far been 

 found upon this continent, and that character will at present readily 



