SUBFAMILY XIII. CALANDRIN^E. 561 



recognized species in our fauna." On account of the great con- 

 fusion of names, it is impossible to decide from the records what 

 the food plants of the species really are. 



GROUP D. 



This group comprises the eastern species having the third 

 joint of all the tarsi slender, scarcely wider than first or second 

 and either wholly glabrous or pilose along the edges beneath. 

 The species are in many instances not closely related and in a 

 natural classification several distinct groups are indicated, but 

 in the present confused state of the nomenclature, they are placed 

 in one key as follows: 



KEY TO EASTERN SPECIES OF GROUP D. 



a. Elytral intervals all flat, (rarely, scoparius, subequally feebly alter- 

 nating,) no single one of them in part or wholly distinctly elevated 

 above the others. 

 &. Beak curved, usually slender; front tibiae straight. 



c. Thorax punctured nearly equally over the entire surface, some- 

 times with a smooth median, not elevated line or space, but 

 never with trace of lateral vittse. 



d. Femora coarsely foveate-punctate; surface with dense gray or 

 velvety coating; thorax and elytra nearly equal in width. 



e. Thorax broadest behind the middle, densely, regularly and 



rather finely punctate, median line absent or very narrow; 



length 56.5 mm. 87C. PARVULUS. 



ee. Thorax broadest in front of middle, sparsely, irregularly and 



very coarsely punctate, median line absent or short; length 



5 c mm. 877. MINIMUS. 



dd. Femora sparsely and finely punctate; surface black without 



coating above. 



f. Thorax distinctly narrower than elytra, densely, confluently, 



very irregularly and deeply punctate, median line narrow, 

 irregular, often interrupted; length 4.8 6 mm. 



878. MARINUS. 



ff. Thorax large, not distinctly narrower than elytra. 



p. Beak with an oval fovea on side in front of eye; thorax 

 very coarsely and unevenly punctate and with large ir- 

 regular median smooth space. 879. CHITTENDENI. 

 gg. Beak without fovea on side of base; thorax not exceedingly 



coarsely punctured. 



)i. Thorax with a median fusiform smooth space; length 



8_10 mm. 880. RETUSUS. 



hh. Thorax shining, unevenly, not coarsely punctate, and 



without median smooth space; elytra strongly narrowed 



at tip; length 7.5 mm. 881. GAGATINUS. 



cc. Thorax with more or less distinct raised vittae or smooth spaces. 



i. Median thoracic vitta, when present, not forked in front. 



