356 SUBFAMILY X. CURCULIONINJB. 



KEY TO EASTERN SPECIES OF GROUP C. 



a. Upper surface rather thickly clothed with pale brown and white 

 scales. 533. SCOLOPACEA. 



aa. Upper surface without scales. 



b. Abdomen very densely and rugosely punctured throughout its width; 

 punctures of thorax coarse and sparse; length 2.8 3.2 mm. 



534. PUXCTIVENTRIS. 

 b~b. Abdomen less densely and rugosely punctate, at least toward the 



middle. 

 c. Punctures of elytral intervals larger, their diameters always more 



than one-third the width of the narrower intervals. 

 d. Legs red; color piceous, strongly alutaceous. 535. CAN ADEN sis. 

 (Id. Legs black or piceous; color black. 



e. Thorax with sides broadly sinuate in basal two-thirds, its 

 disc densely punctured without trace of median line. 



536. DEFORMIS. 

 ee. Sides of thorax not sinuate, disc usually with a narrow, 



smooth median line. 



f. Thorax longer, one-fourth wider than long, more depressed, 



distinctly converging from base to apex. 537. SOCIAT.IS. 



//. Thorax short, broad, three-fifths wider than long, feebly 



converging from base to apex. 



g. Elytral intervals each with a single row of fine, remote 

 punctures; smaller, 2.8 3.4 mm. 538. CONFINIS. 



gg. Punctures of intervals somewhat coarser, more close-set, 

 those of the third confused; larger, 3.4 4 mm. 



539. SUBSIMILIS. 



cc. Punctures of intervals small, their diameters never more than 

 one-third the width of the intervals; very shining, usually 

 bronzed or brassy species. 



h. Thorax densely punctate, the punctures separated by only one- 

 half their own diameters; length 3 3.5 mm. 



i. Body narrowly oval; sides of thorax converging from the base 



and broadly and evenly curved. 540. AFERTA. 



ii. Body broadly oblong; thorax much wider, its sides abruptly 



rounded and converging in front. 541. ABRUPTA. 



Mi. Thorax more sparsely punctate, the punctures separated by one 



to three times their own diameters. 



j. Form narrow, the thorax but slightly wider than long; sur- 

 face with strong brassy lustre; length 2.5 mm. 



542. DISCIPULA. 



jj. Form more broadly ovate, thorax distinctly wider than long. 

 k. Surface with bronzed or brassy lustre. 



/. Beak very short, % scarcely two-thirds as long as thorax: 

 length 2.32.9 mm. 543. ;EREA. 



77. Beak as long or nearly as long as thorax. 



m. Smaller, less than 2.5 mm.; elytral striae very fine; 

 base of thorax less than three times as wide as head. 



544. SCINTILLA XS. 



mm. Larger, 3.5 or more mm.; striae coarse; base of thorax 

 three times as wide as head, or nearly so. 



