classification and description of common insects 213 



Phycitid^ 



Apple Leaf Crumpler {Mineola indigenella Zeller).— A widely 

 distributed moth but injurious mainly in the Central States on 

 buds in early spring. 



Adtilt. — Wing expanse ^^ inch; fore wings brown with patches 

 and streaks of silver. Emerges in June. 



Eggs. — Laid in midsummer and hatch in about a week. 



Larva.- — Three-fifth inch long when full grown; greenish brown, head 

 and thoracic shield dark brown; young larva brown, feeding on leaves 

 of tender shoots; construct crooked cornucopia-like cases of fras 

 and silk. Winters as half grown larva. Injures the buds in spring. 

 Full grown in June. 



Pupa. — Reddish-brown. 



Control. — Early spraying with arsenate of lead. 



Apple Leaf Skeletonizer {Psorosina hammondi Riley). — Sometimes 

 injurious in Mississippi Valley especially on nursery stock, but not 

 common northward and eastward. 



Adult. — A pyralid moth, }/i mch wmg expanse; fore wings glossy, 

 purplish-brown, marked with two transverse silvery grey bands. 

 Two broods a season. May-June and August. 



Larva. — Small, Y2 iiich long, greenish or brownish, with 4 black 

 shining tubercles on back behind the head, and with a broad darker 

 stripe along each side of back. Feeding singly, or in groups, in July 

 and Sept.-Oct., on upper surface of leaves under a silken web, skeleton- 

 izmg them and giving them a rusty blighted appearance. 



Pupa. — Formed among the leaves in a slight cocoon; pale brown, 

 }y'i inch long. 



Mediterranean Flour -moth {Ephestia kuehniella Zeller) . A dull.- — A 

 pyralid moth, Ig inch wing expanse. Fore wings grey with transverse 

 black zigzag lines; hind wings greyish white with a darker border. 

 Both wings fringed. New generation every two months; lives about 

 a week (Fig. 133). 



Eggs. — White, elongate oval; a female depositing as many as 200 

 eggs singly in flour, in cracks, and about machinery; hatch in about 

 a week. 



Larva. — Cue-half inch long; white with fine black dots, sparsely cov- 

 ered with hairs. Feeds within a silken tube and spins a silken web, 



