2o6 ECONOMIC ENTOMOLOGY 



Control. — Spray with arsenate of lead just after the leaves unfold; 

 band trees with burlap in fall. 



ENNOMIDiE 



Pepper-and-salt Currant Moth (Amphidasis cognataria Guen.). — 

 Injures leaves of currant, gooseberry, plum, Spirea and maple. 



Adult. — Body grey, with black dots; wing expanse 2 inches, grey 

 with dark brown dots and two wavy brown cross bands on the outer 

 third. May and August. 



Eggs. — Cylindrical, with surface marked with rows of hexagonal 

 depressions; }/3o inch long. 



Larva. — A geometrid or measuring caterpillar, 2 inches long; green 

 to brownish-black in color, with indistinct green or yellow lines and 

 spots. Full grown in July. 



PupcB. — Pupae dark brown, ^ inch long, formed in the ground. 

 Some change to moths in August, but others do not change until 

 following May. 



Lime Tree Winter Moth (Erannis tiUaria Harris).— Occasionally 

 injurious to the leaves of elm, basswood, hickory, apple, etc. 



Adult. — Male, with rusty-bufif body and fore wings, and lighter 

 hind wings. Female wingless, light brown to grey with markings. 

 Oct.-Nov. 



Eggs. — Cream colored, cylindrical with ends blunt-rounded. 

 Hibernate. 



Larva. — A bright-yellow looper, with rust-colored head, and 

 ten crinkled black lines along the back. Full grown larva \Y4.~'^Y2 inches. 

 June. 



Pupa. — July-Oct. 



Currant Span Worm {I tamer a rihearia Fitch). Adult. — A pale 

 yellowish geometrid moth with brownish spots, 13^^ inches expanse; 

 markings on wings variable and often with one or two cross bands. 

 Mid-summer. 



Eggs. — Laid on twigs about July; hatch the following spring when 

 leaves are full grown. 



Larva. — A yellow striped and black spotted looper, a little more 

 than an inch long; full grown in 3 to 4 weeks. 



Pupa. — Formed just beneath the surface of ground; duration 2 to 

 3 weeks. One brood each season. 



Control. — Spray with arsenical or pyrethrum. 



