366 FIFTU REPORT OF THE ENTOMOLOGICAL COMMISSION. 



chrysalids either among the leaves or desert the tree aud seek some 

 retired place, where they spia a slight loose cocoou, within which they 

 remain through the winter, appearing in the imago state by the mid- 

 dle of the following June. 



The butterfly is brown, the fore-wings are brown with a transverse semi-transparent 

 band across the middle, and a few spots towards the tip of a honey-yellow color; 

 hind wings with a short ronnded tail on the hind angles, and a broad silvery 

 band across the middle of the under .side. The wings expand from 2 to '2J inches. 

 (Harris.) 



Remedies. — Nearly all the insects which prey upon the foliage of the 

 locust can be gotten rid of by hand-picking and by collecting the leaves 

 in autumn and burning them ; in this way cherished shade trees can be 

 protected. 



12. Dasylophia anguina Abbot and Smith. 



The eggs of this moth were sent me by Miss Emily L. Morton, of 

 Newburgh, N. Y., having been laid about the 20th of July. She has 

 never found the larvae on any other tree than the locust, and then only 

 rarely. The larvse hatched July 25, at Brunswick, Me.; the first molt 

 occurred July 28, the second August 6, and the third August 10 to 11 , 

 the fourth August 20 to 22. 



Egg. — Spherical, whitish, surface seen under a good lens to be very finely granu- 

 lated. Diameter, .8'"'". 



Larva directly after hatching. — Head very large, nearly twice as wide as the body is 

 behind the middle, rounded, yellowish amber with a lateral black stripe. First ab- 

 dominal segment shining red, with two high slender subdorsal tubercles ; two similar 

 but much smaller tubercles on the eighth segment, which is also reddish. Body deep 

 pea-greeu, shining, with six very narrow dorsal, subdorsal, and lateral black lines. 

 Anal legs long and slander, dark red, aud with the two last abdominal segments (9 

 and 10) uplifted much as iu the full-fed larva, at an angle often of 45 degrees. All 

 the legs, both thoracic and abdominal, dull greenish. Hairs stiff and black, mostly 

 thickened at the end ; about as long as the body is thick. Length, 3 to 4™'". 



Larva after first molt, July 2d. — Head amber-colored, no wider than the body. 

 Body pale green, the dark brown stripes, especially the dorsal one, more distinct ; 

 the dorsal line is continuous; the two lateral ones somewhat broken ; the hairs are 

 still black, but not so much thickened as before. Markings nearly as before, but the 

 first and eighth abdominal segments not so deep red as in stage I. Length, (5 to 7""". 



Larva aftei second molt, August 6. — More like the mature larv.e. Head of moderate 

 size, but little wider than the body, rounded, dull pale reddish orange. Body smooth 

 and shining, straw-yellow ; a dorsal black line ending on the polished black knob 

 on the eighth abdominal segment. Three lateral, more or less interrupted black 

 lines in a whitish band, the middle of the three the faintest. This band incloses on 

 the first abdominal segment a polished jet-black tubercle. Low down on the sides 

 of the body are twelve black spots, one at the base of each foot, when they are pres- 

 ent; four black spots on the front part of the supra-anal plate. Anal legs uplifted, 

 extensile, black on the tips. Length, 15""". 



Larva after third molt, August 10 to 11. — Only differs from the preceding stage in its 

 more distinct, deeper hues, especially the pale lilac tint on ninth and adjoining seg- 

 ments, and the larger, thicker body. The four black spots on the base of the short 

 supra-anal plate are united to form a continuous baud. Length, 22"^™. 



Full-fed larva. — Head rounded, greenish amber; body smooth, of nearly uniform 

 thickness, with a low rounded jet-black knob on tip of the eighth abdominal seg- 



