254 INSECTS INJURIOUS TO THE GRAPE. 



and terminating in a flattened point, with two small thorns at 

 the end. The insect remains in the chrysalis condition until 

 the following spring. 



The moth (Fig. 263) is found on the wing from the early 

 part of April to the end of May, and measures, when its 

 wings are spread, two and a half inches or more across. It 

 is of a dull chocolate-brown color, the front wings becoming 

 pale beyond the middle, and marked with dark brown as in 

 the figure. The hind wings are yellow, with a broad brown 

 border, breaking into a series of short lines as it approaches 

 the body. The abdomen is furnished with tufts along the 

 sides near the extremity, and when the insect is at rest is 

 curved upwards. 



It is scarcely likely that it Avill ever prove destructive; 

 should it at any time become so, it may be subdued by hand- 

 picking. It is preyed upon by a small species of Ichneumon 

 fly, which in the larval state lives within the body of the 

 sphinx caterpillar and finally destroys it. 



No. 136.— The White-lined Deilephila. 



Deilepliila lincaia (Fabr.). 



This handsome moth (see Fig. 264) is a comparatively 

 common insect, and has a w^ide geographical range, being 

 found throughout the greater portion of the United States 

 and Canada, also in the West Indies and in Mexico. It is 

 double-brooded, appearing on the wing early in June, and 

 again in September. Its period of activity begins with the 

 twilight, when it may be seen flitting about with great rapidity, 

 hovering like a humming-bird over flowers while extracting 

 their nectar. The ground color of tiie fore wings is a rich 

 greenish olive, with a pale-buff stripe or bar extending along 

 the middle of the wing from the base to near the tip ; along 

 the outer margin there is another band or stripe nearly equal 

 in width and of a dull-gray color, and the veins are distinctly 

 margined witii white. The hind wings are small, and are 

 crossed by a wide, rosy band, which covers a large portion of 



