246 Illinois State Laboratory of Ifatural History. 



anterior margin of the striated area, resting on the- 

 lower lateral line; remaining upper lateral areas of thorax 

 much more coarsely and sparsely striate and shining; 

 middle and lower thoracic areas— often much reduced, or 

 even entirely covered, by the lateral stripes— with dis- 

 tinctly finer and closer striation, but still shining; ab- 

 dominal lateral areas with still finer striation, nearly as 

 fine as that of the prothorax and feebly shining; dorsal 

 and ventral areas all smooth and shining, rarely a few 

 broken striae about their margins, at thebase of the 

 prothorax or on the anal segment. 



Dark annuli distinct, broad, including false feet, trans- 

 verse pale spot immediately in front of dorsal tubercles 

 narrow or closed up in the mature larva; on the ab- 

 domen above, each annulus usually extends back on the 

 median line in a triangular prolongation, often nearly 

 attaining the next annulus, less developed in younger 

 larvae. Prothoracic lateral space occupied in front of 

 the striated area by a dark opaque quadrate spot, ex- 

 tending from the anterior annulus. Lateral stripes of 

 meso- and metathorax broad, at least the upper ones 

 widened posteriorly, the lateral edges of the dorsal 

 areas therefore parallel behind the middle of the seg- 

 ment, as seen from above; lateral stripes of abdomen, 

 especially the intermediate ones, more or less abbi-eviated 

 and broken up posteriorly except on the segment 

 next the last. In these stripes the punctures of the 

 upper and lower rows are indicated by rounded pale 

 dots, and those of the inner rows by elongate dots. 

 Last segment with broad dark annuli about base of re- 

 spiratory tube and around anal prominence, with lateral 

 connections; also more or less invaded above by the 

 basal annulus, often leaving there only a pair of pale 

 spots posteriorly. Often a dark spot in the anterior 

 angles of the ventral space on the seventh abdominal, 

 and one behind the anal dark ring. 



False feet moderately elevated, with coarse whitish 

 pubescence more or less tipped with fuscous or with 



