SUBFAMILY XIII. CALANDRIN^E. 555 



GROUP C. 



This group comprises 10 rather large eastern species, all agree- 

 ing in having the beak curved, three-fourths to the same length as 

 thorax, dilated and finely grooved at base; thorax usually with 

 three distinct raised vittse, the median one nearly entire, not 

 forked in front, the lateral ones with an outer branch extending 

 from near the middle nearly to the hind angles ; elytral intervals 

 usually unequal in width, varying in convexity; third joint of 

 front and middle tarsi more or less dilated and pubescent along 

 the sides. 



KEY TO EASTERN SPECIES OF GROUP C. 



a. Elytral intervals either flat or alternately elevated throughout their 



entire length; strife rather finely punctured. 

 b. Thorax with three distinct raised vittae or smooth lines. 

 c. Beak subcylindrical, slightly narrowed at extreme base; alternate 

 elytral intervals elevated, convex, irregular and somewhat in- 

 terrupted; thoracic vittae unequal, the outer strongly sinuous; 

 length 11 15 mm. 866. PERTINAX. 



cc. Beak more or less compressed. 



d. Beak moderately subequally compressed, the hind angles of 

 its apex acute or subacute, scarcely produced; thoracic vittae 

 with curved or sinuous outline. 



e. Odd elytral intervals convex, black and shining, the others 

 mostly opaque gray; second abdominal segment of male 

 with a short, transverse brush of brown setae; length 10 

 12.5 mm. 867. SETIGER. 



ee. All the elytral intervals flat or nearly evenly convex, uni- 

 form in color. 



f. Elytra covered with natural, thick clay-yellow coating ex- 

 cept humeri and elevated basal portions of first and third 

 intervals; other intervals subequally and feebly convex; 

 length 14 mm. 868. PENINSTJLARIS. 



ff. Elytra, with natural thin subsericeous gray coating; all the 

 intervals flat and of nearly equal width; length 11 14 

 mm. 869. ROBUSTUS. 



dd. Beak strongly compressed at apical fourth and suddenly bent 

 backward, the front face of its apex flat or slightly concave, 

 the hind or lower angles obtuse; thoracic vittae subparallel. 

 g. Thoracic vittae strongly elevated, nearly straight; elytral in- 

 tervals 1, 3, 5 and 7 elevated and rather broad throughout 

 their length; first ventral of male not uniformly villous; 

 length 7 12.5 mm. 870. COSTIPENNIS. 



gg. Thoracic vittae less elevated, sinuous; elytral intervals 1, 3, 

 5 and 7 with elevated portions narrower, that of 3 and 5 

 short and narrowed toward apex, of 7 still narrower, some- 

 times wanting; male with first and second ventrals uni- 

 formly sparsely villous, fifth with long hairs; length 

 10 12 mm. 871. VILLOSIVENTRIS. 



