176 MUSIC. PUBLICATION 1 47 0, U. S. DEPT. OF AGRICULTURE 



Male. — Rather broadly elongate, slightly convex above, moderately shining, 

 piceous on the elevated spaces, bronzy green, with a slight cupreous tinge in the 

 depressed areas ; beneath purplish brown, becoming more or less bronzy green 

 on the legs, and more strongly shining than above. 



Head uniformly bright green, with two small, smooth callosities on front, and a 

 rather broad, smooth, longitudinal carina on occiput; front flat; surface finely, 

 confluently punctate, rather densely clothed with long, erect, inconspicuous hairs, 

 clypeus broadly, deeply, angularly emarginate in front, broadly rounded on each 

 side. Antenna green, slightly brownish at outer margins of segments, gradually 

 narrowed to apex ; intermediate segments subtriangular, about as long as wide, 

 subtruncate at outer margins ; third segment nearly as long as following two 

 segments united. 



Pronotum twice as wide as long, wider at base than at apex, widest near 

 apex; sides abruptly converging at apical angles, slightly, arcuately converging 

 from near apical angles to posterior angles; anterior margin broadly, deeply, 

 arcuately emarginate, with an obsolete, rounded, median lobe; base arcuately 

 emarginate on each side, median lobe slightly produced and broadly rounded; 

 disk slightly convex, more or less uneven, with a broad, shallow, longitudinal, 

 median depression, which is wider in front than behind, and limited on each 

 side by a slightly elevated, irregular, smooth space, between which and the 

 lateral margin are a number of transverse, smooth plicae ; surface between ele- 

 vations densely, finely, irregularly punctate, sparsely clothed with short, erect, 

 inconspicuous hairs. 



Elytra slightly wider than pronotum, nearly twice as long as wide ; sides nearly 

 parallel from humeral angles to apical third, then arcuately converging to tips, 

 which are separately narrowly rounded; lateral margins finely serrate; basal 

 and humeral depressions broad and rather shallow; surface glabrous, uneven, 

 finely, densely, irregularly punctate between the elevated, smooth spaces. Each 

 elytron with four more or less distinct, smooth costae, but these irregular, more 

 or less interrupted, and irregularly connected to one another by transverse, ele- 

 vated, smooth lines. 



Abdomen beneath coarsely, sparsely, irregularly punctate, sparsely clothed 

 with short, recumbent, whitish hairs, without lateral callosities, intervals finely 

 granulose; last visible sternite deeply, arcuately emarginate at apex, without a 

 submarginal ridge, lateral margins serrate ; eighth tergite densely, coarsely punc- 

 tate, thickened at apex, upper margin broadly, angularly emarginate at apex, 

 and projecting over lower margin, which is broadly rounded at apex, Prosternum 

 coarsely, densely punctate, rather densely clothed with long, erect, white hairs; 

 anterior margin subtruncate, without a distinct median lobe. Anterior femur 

 with a short, obtuse tooth, which is slightly dentate on outer margin. Anterior 

 and middle tibiae strongly arcuate, the former with a rather long, rounded dila- 

 tion along apical fourth, the latter gradually expanded at apex; posterior tibia 

 slightly arcuate. 



Length 10.5 mm., width 4.5 mm. 



Redescribed from a male in the United States National Museum 

 from the White Mountains, N. H. (Hubbard and Schwarz collection) . 



Female. — Differing from the male in having the front of the head uniformly 

 brownish cupreous, more coarsely punctured, and sparsely pubescent, the antenna 

 uniformly bronzy green or brownish cupreous, the last visible sternite more 

 elongate and more shallowly, narrowly emarginate at apex, the eighth tergite 

 deeply, confluently punctured, rounded or slightly emarginate but not thickened 

 at apex, the anterior tibia unarmed at apex, and the posterior tibia straight. 



Type locality. — Of scabripennis, proxima^ and consimilis, North 

 America; type of proxima in British Museum, but present location 

 of the types of scdbripennis and consimilis is unknown to the writer. 

 Of scabra, "Amerique du Sud"; type supposed to be in the Natural 

 History Museum, Geneva, Switzerland. 



