MOTHS AND BUTTERFLIES. 



465 



Fig. 587. — Hciiiarls thijshe. 



or cells ill which they change to pupie, which are quite remarkable in some species, 

 because of the peculiar tongue-case which stands off from the body like a jug-handle. 

 The pupa3 remain in the ground all winter, and the moths emerge the following sum- 

 mer, though occasionally a specimen remains in the pupal state till the second summer. 

 Not far from five hundred species have already been described in this family. 



The Thysbe clear-wing, Ileinurls tliijshe, is a very common American species, having 

 an exjjanse of wings of about two inches. The head and thorax are dark green mixed 

 with brown ; and the abdomen is yellowisn 

 brown at the base, reddish brown in the 

 middle, and dull yellowish brown with fer- 

 ruginous patches at the extremity. The fore 

 wings are transparent, with blackish veins and 

 a ferruginous spot near the apex. The costa, 

 outer-border, basal portion of the wing, and 

 an oblique stripe across the end of the cell 

 are covered with dark-brown scales, making 

 these jjortions of the wing ojjaque. The hind 

 wings are transparent, with Ijlackish veins. 

 The outer border is dark brown, witli a bright ferruginous base. The caterpillar is an 

 inch and three-fourths long, of a clear green color, lighter on the back. The central 

 stripe along the back is bordered by two white lines, and a white or yellowish-green 



lateral stripe extends from the second 

 segment to the caudal horn which is 

 light blue tijqjed with yellow, and gran- 

 ulated with white on the sides. Lefore 

 transforming to a pupa, it changes con- 

 siderably in color. This species feeds on 

 the leaves of snow-ball ( Viburnum opu- 

 lus), and completes its transformations 

 within an imperfect cocoon comjjosed of 

 a few leaves drawn together by silken 

 threads, in which it passes the winter. 

 The moths fly only in the hot sunshine 

 in the middle of the day, where they may 

 be seen hovering over flowers in com- 

 pany with other species of clear-wings, 

 and also with humble-bees, which the\' 

 somewhat reseml;le while on the wing. 

 The green grape-vine s])liinx (JHcen/x 

 rin/ron) is very generally distributed 

 through the United States. The wings 

 expand about two inches and a half. 

 The head and thorax are dull dark 

 green, and the fore wings are dark olive 

 green, crossed by bands and streaks of 

 greenish gray, shaded on the outer mar- 

 gin with the same color. The hind wings are dull red, -with a patch of greenish gray 

 next the body, shading gradually into the surrounding color. 



VOL. II. — 30 



Fig-. 5t5S. — Euerijx mifroii and larva. 



