LEPIDOPTERA. 363 



dal part, of recumbent hairs. The wings are dusky gray, 

 crossed by white lines as shown in the figure. The figure 

 represents the male ; the female is much larger. The moths 

 are found in August and September. The larva feeds upon 

 the leaves of apple, poplar, and syringa. Its body is bluish 

 gray, with many faint longitudinal lines ; and across the back 

 of the last thoracic segment there is a narrow velvety-black 

 band. The larva reaches maturity during July. The cocoon 

 is brownish gray, and is usually attached to one of the 

 branches of the tree on which the larva has fed. 



The second species of this genus is known as the Larch 

 Lappet, Tolypc laricis (T. lar'i-cis). This is a smaller species, 

 the females being about the size of the male of the preced- 

 ing species, and the males expanding only about one and 

 one fourth inches. The wings of the females are marked 

 much like those of T. velleda, except that the basal two 

 thirds of the front wings are much lighter, and the dark 

 band on the outer third is narrower and much darker than 

 the other dark bands. The males are bluish black, with the 

 markings indistinct. The larva feeds upon the larch. When 

 mature it is of a dull brown color and less than one and one 

 half inches in length. When extended the front of the first 

 thoracic segment is pale green, and the incision between 

 the second and third is shining black. The larva matures 

 during July. The cocoon is ash-gray, flattened and moulded 

 to the limb to which it is attached, and partially surround- 

 ing it. The moths appear in August or September. The 

 winter is passed in the egg state. 



The genus PJiyllodcsma includes 

 three Califcrnian and two Eastern 

 species. The more common one of 

 the latter is the American Lappet, 

 P. americana (Fig. 444). The moth 

 is reddish brown, with the inner angle FlG . 444 ._ 

 of the front wings and the costal 

 margin of the hind wings deeply notched. Beyond the mid 



