2 28 ECONOMIC ENTOMOLOGY 



Laspeyresia molesta Busck. — A new species found injurious to 

 peach in District of Columbia. 



Clover Seed Caterpillar {Laspeyresia inter stinctana Clemens). — 

 (Consult Bull. 134, III. Ag. Exp. St.) Injures heads of red clover, 

 white clover and alsike. 



Adtdt. — A silky dark brown moth, expanding about )^ inch; fore 

 wings with 8 or 9 silvery markings along the front margin, and 2 

 curved markings on hind margin forming two crescents when wings 

 are closed; hind wings dark brown with pale fringes. Probably three 

 broods each season. May-June ; July ; Aug .-Sept. 



Eggs. — At first green, later yello wish- white ; shghtly flattened 

 orbicular; hatch in 5 or 6 days; laid on young clover heads, or on 

 young stems and leaflets near the base. 



Larva. — One-third inch long; dirty- white to orange; head dark brown 

 and polished; thoracic shield yellowish or dark brown with a clear me- 

 dian line; dorsal tubercles arranged in 2 pairs and bearing hairs; body 

 with several pale stiff hairs. Mature in 4 to 5 weeks. 



Pupa. — Brown, 3^^ inch long. Cocoon oval, white, silken, usually 

 with bits of flower tissue and excrement attached. Spun in a clover 

 head or at surface of ground. Duration 14 to 30 days. 



Control.— Cnt and store the clover crop early in June; do not allow 

 clover to run for more than 2 years. 



Grape Berry Moth {Polychrosis viteana Clemens). — (Consult Bull. 

 223, Cornell and Bull. 293, Ohio). A serious grape pest causing wormy 

 grapes. 



Adult. — A purplish-brown tortricid moth, 3^ inch expanse; wings 

 leaden-blue with dark spots. Two broods. 



Eggs. — Minute, whitish and scale-like, laid on stems of flower clusters 

 or later on the green berries; hatch in 4-8 days. 



Larva — ^Mature caterpillar, % inch long, dark green to purpUsh; 

 head light brown; thoracic shield black; body covered with many 

 faint spots bearing whitish hairs; 3 weeks. 



Pupa. — Formed in a thin silk cocoon in a piece of leaf; light green- 

 ish-brown. Duration 10-14 days. 



Life-history.— In June- July the moths appear and lay their eggs 

 in the blossoms and on young grapes. The young larvae feed on the 

 blossoms and young berries, webbing the clusters together. They 

 mature in 3 weeks and pupae are formed in cocoons made from bits 



