THE LEAF BEETLES. 



1149 



Tig. 494. (After Chit- 



Southwestern portion of the State; scarce. June 12-July 28. 

 Occurs on the greater ragweed, Ambrosia triftda L., in low, moist 

 places. The larger size, more truly oval form and coarsely punc- 

 tured sides of metasternum readily distinguish this from tristis. 



2130 (6778b). Nodonota puncticollts Say, Journ. Phil. Acad. 

 Ill, 1826, 444; ibid. II, 212. 

 Oblong, nearly parallel. Bluish, greenish or bronzed, 

 moderately shining; basal joints of antennae, and rarely 

 the legs, reddish-yellow. Head and thorax distinctly alu- 

 taceous, the latter more than twice as wide as long, sides 

 feebly curved, front angles acute; surface with rather 

 dense, elongate punctures. Elytra coarsely and irregular- 

 ly punctate, the punctures in rows near apex. Umbone 

 marked with a distinct impression and with usually a 

 shoit raised line or costa behind it. Length 3.5-4.2 mm. tenden in Bull. VII, New 



(Fig. 494.) Per., U. S. DL. Ent ) 



Southern half of State ; frequent, May 28-July 4. Occurs on 

 the flowers of wild rose and the foliage of various herbs. 



Chrysodina globosa Oliv., broadly oval, convex, bronze-blue or 

 brassy, length 2.5 mm., is said to occur from the "Middle States to 

 Colorado and Arizona," 



Tribe VIII. CHRYSOMELINI. 



Oval, convex, rarely oblong beetles of moderate, rarely small 

 size, usually variegated in color. They have the antenna* of mod- 

 erate length, widely separated at base, the outer joints somewhat 

 enlarged ; eyes feebly emarginate, not prominent ; thorax with w<ell- 

 defined side margins ; front coxa? transverse and widely separated ; 

 elytra with distinct epipleura? and covering the abdomen; third 

 tarsal joint entire (except in Gastroidea and Una) . Representa- 

 tives of nine of the 13 genera composing the tribe have been taken 

 in the State, Avhile those of one other may occur. 



The only papers treating especially of the North American 

 genera comprising the tribe are as follows : 



Rogers, W. F.~" Synopsis of the Species of Chrysomela and 



Allied Genera Inhabiting the U. S.," in Proc. Phil. Acad. 



Nat. Sci., VIII, 1856, 29-39. 

 Linell, Martin L. — ''A Short Review of the Chrysomelas of 



North America," in Journ. N. Y. Entom. Soc, IV, 1896, 



195-200. 



