44 MAINE AGRICULTURAL EXPERIMENT STATION. 1917. 



cles without any outer margin, the openings elliptical; cre- 

 master (Fig. 4, F) with two large spines and six smaller ones. 



Length 15 to 18 mm.; greatest width 3.5 to 4 mm. 



The larvae of this species are pale yellow with some narrow 

 dark brown or black stripes and marked with conspicuous black 

 spots near the spiracles and on the lower part of the body. They 

 feed on numerous plants, and specimens were collected from 

 larch and sweet fern August 8. They pupated shortly after, 

 spinning a very loose open cocoon through which the pupa could 

 be easily seen. The cocoon was attached either to a leaf or a 

 stem. The adults are white, and also conspicuously marked 

 with black. They emerge in September. 



Genus SICYA Guenee. 



Body of usual type; surface smooth with a few punctures 

 on the abdomen ; labial palpi represented by a small triangular 

 area caudad of the labrum ; maxillae seven-eighths the length of 

 the wings, the proximo-lateral angles scarcely reaching to the 

 eye-pieces ; antennae elevated, extending to the caudal margin of 

 the wings, their greatest width slightly greater than that of the 

 prothoracic legs, and meeting or approaching each other on the 

 meson; prothoracic legs about two-thirds the length of the 

 wings, extending cephalad between the sculptured eye-pieces 

 and the antennae ; mesothoracic legs nearly as long as the wings, 

 meeting on the meson just caudad of the maxillae ; mesal length 

 of prothorax about half that of the mesothorax, while the meta- 

 thorax is one-fifth of this length ; mesothoracic spiracle slit- 

 like, the cephalic margin slightly elevated ; spiracular furrows 

 not present ; dorsal furrow present between the ninth and tenth 

 abdominal segments, the caudal margin showing two large 

 projections ; cremaster triangular, longer than the tenth segment, 

 two large hooked spines or setae at the end, with three smaller, 

 but heavy hooked setae on each side just cephalad of the others. 



SICYA MACULARIA Haworth. 

 Fig. 2, D and G. 



Color pale yellow and green with silvery and pale green 

 iridescence; surface smooth and polished, the setae rather con- 



