BUFFALO SOCIETY OF NATURAL SCIENCES 481 



Largidea marginata Uhler, MS. 



Dark castaneous. Head piceous-black with a rufous spot against the 

 inner margin of the eves. Second joint of the antennae sometimes tinged 

 with castaneous. Pronotum rufous; callousities black, the impressed line 

 behind them polished ; generally the whole disk behind the callousities is 

 dark castaneous leaving a broad rufous or red margin. Seutellum rufous 

 with a blackish spot on its base. Elytra dark castaneous; the cuneus and 

 sometimes the broad inner margin of the corium rufous. Membrane black- 

 ish fuscous; the nervures black. Beneath mostly rufous becoming black 

 on the sternum. Legs nearly black, the femora sometimes rufous beneath. 



Described from thirteen examples taken by me on scrub 

 oak at Salida, Colorado, July 24th, 1900. At that time I sent 

 specimens to Dr. Uhler which he determined as Largidea mar- 

 ginata Uhler, but the description seems never to have been 

 published. 



Genus Qanocapsus n . gen. 



Body glabrous, oblong, subelongate; head nearly vertical, 

 more elongated than in Garganus, clypeus strongly convex, pas- 

 sing the cheeks by one-half its length, vertex distinctly impressed 

 between the inner angles of the eyes. Antennae long and 

 slender, attenuated toward the apex; first joint thickest, nearly 

 as long as the pronotum; second joint filiform, not at all thick- 

 ened. Pronotum longer than in Garganns, strongly narrowed 

 anteriorly, and the sides distinctly but not deeply sinuated; 

 surface transversely wrinkled, impunctate, collum distinct. 

 Elytra polished, impunctate, strongly shagreened. Rostrum 

 attaining the hind edge of the metasternum. Posterior femora 

 long, terete, scarcely flattened and but little narrowed to the 

 apex; first tarsal joint not longer than the second; arolia large 

 and divaricate as in the allied genera. 



This genus is closely allied to Gajganus but differs in having 

 the second antennal joint filiform, the head more produced with 

 a longer and more convex clypeus, the vertex more distinctly 

 impressed at base, and the pronotum longer with the sides 

 obviously sinuated. 



Type Ganocapsus filiformis n. sp. 



Qanocapsus filiformis n . sp. 



Form of Grarganus fusiformis. Color pale sanguineous, 

 elytra black, commissural and costal margins and legs pale 

 yellowish. Length, male 5, female 6 mm. 



