470 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



below ; the anal end with a small black spine extending back, which is used by -the 

 larva in pushing itself forward. Body quite flat and the segments deeply notched. 

 Length 9™™. (Gillette.) 



52. Chrysomela pallida Say. 



Mr. Coquillet has foimd the larvae living in communities on the 

 leaves. Several were observed in Illinois to enter the earth to pupate 

 June 1, the beetles issuing about June 19. 



iarva.— Body black, elongated, much wrinkled and roughened ; the sutures of the 

 segments and the under side of the body sometimes tinged with brown ; head and 

 cervical shield polished black. Length 8"™. (French.) 



Beetle. — Pale rufous ; elytra pale testaceous, immaculate. Body very pale rufous, 

 head obsoletely punctured ; an indented, abbreviated line or spot on the vertex ; 

 thorax with small punctures which are sometimes obsolete ; elytra pale testaceous, 

 with strise of punctures which become obsolete before the tip; beneath pale. Length 

 15™". (Say). 



/ 



Fig. 169.— Mine in a poplar leaf.— Bridghaui del. 

 53. Crepidodera helxines (Linn.). 



This beetle is very plentiful in New York, according to Mr. Dev- 

 ereaux, feeding on the foliage of the poplar. 



