440 



INJURIOUS AND BENEFICIAL INSECTS OP CALIFORNIA. 



THE OBLIQUE-BANDED LEAF-ROLLER 311 



Archips rosaceana Harris (Family Tortricidse) 

 [Cacaecia rosaceana (Harris)] 



(Fig. 448) 



Description. — The moths are delicate reddish-brown in color, very 

 flat, and when the wings are folded appear bell-shaped in outline 

 (Fig. 448). The front wings are light cinnamon-brown with many 



short darker cross-lines, very fine 

 and irregularly arranged. Near 

 the middle is a wide, dark, oblique 

 band and a large area of the same 

 color near the tips. The hind wings 

 are plain ochre-yellow, with dusky 

 areas near the body. The length is 

 about \ inch, the wing expanse 1 

 inch. The caterpillars are light 

 green or pinkish with head and part 

 of prothoracic shield black or dark 

 brown. Sometimes the dorsum is 

 slightly darker than the remainder 

 of the body. The spine areas on the 

 dorsum often appear light, as shown 

 in Pig. 448. When full-grown, they 

 measure f inch in length. 312 The 

 chrysalis is found in the rolled leaf 

 and is of a rich dark-brown color 

 and \ inch long. The eggs are laid 

 in flat, oval, greenish masses, each 

 mass containing, on an average, over 

 100 eggs. 



Life History. — It appears that no 

 one has studied definitely the stage 

 in which this insect passes the winter 

 find the suggestions of Sanderson and 

 Jackson 313 that the larvae hibernate 

 in rolled leaves or other sheltered 

 places is yet to be definitely proven. 

 Larvae do appear early in the spring 

 and begin to feed upon the leaves 

 and young fruit, if present, and to 

 tie the leaves together for a place of 

 abode, as does the fruit-tree leaf- 

 roller. Pupation takes place within 

 the rolled leaves and requires from 

 five to eight days. Adults begin to 

 appear in the latter part of April and the first of May. Most of the 

 eggs are laid in August and September and hatch in a little over a 



'"Saunders. W.. Ins. Inj. to Fruits, pp. 90-92, 1911. 



312 Only part of the dorsum of the prothorax of the caterpillars of A. rosaceana is 

 dark while the entire dorsum of the prothorax of A. argyrospila is dark. 

 ""Sanderson, E. D.. and Jackson, A. D., Jr. Ent. II, pp. 391-403, 1909. 



-The oblique-banded leaf- 



Fig. 448. 

 roller, Archips rosaceana Harris. 

 and adult female. Enlarged 

 (Original) 



Larvse 

 twice. 



