20 



this species several years ago at LaFayette, Ind. These captures, how- 

 ever, do not evidence the permanancy of the species in those localities. 



THE EARLY STAGES OF THE INSECT. 



The larva. — The larva is nearly cylindrical, upward of half an inch 

 long when mature, and a beautiful object when viewed through a hand 

 lens, pale green in color, marked above with nine reddish-brown 

 longitudinal stripes arranged in transverse bands, forming on the 

 different segments the patterns shown in figure 3 at d. 



It is of elongate subcylindrical form, moderately depressed on the 

 dorsum and a little more ventrally, and upward of eight times as long 

 as wide. The general color above is in life pale bluish green, and the 

 venter is paler green tinged more or less strongly with carneous. The 

 blue and green colors fade in inflated specimens and in alcohol. The 

 head is small, considerably narrower than the first thoracic segment, 



Fig. S.—Elasmopalpus lignosellus: a, male moth; b, fore-wing of dark female; bb, antenna of female; 

 c, male at rest; d, larva; e, ventral segment of larva from side, much enlarged;/, cocoon — all except e 

 three times natural size (original) . 



and shining moderately dark brown in color. Prothoracic plate very 

 dark brown, nearly black, polished, with the median line narrow but 

 distinct. The thoracic segments are deeper bluish green than the 

 abdominal, this color and the lighter abdominal ground color showing 

 only near the sutures, where it forms in the anterior portion of each 

 segment a transverse band, appearing at a little distance to be only 

 about a fourth as wide as the remainder of each segment, but in 

 reality (by closer inspection) fully a third of the whole segment. Seg- 

 mentation is not pronounced, but the segmental folds, as seen from 

 the side, are moderately prominent. Surface sparsely covered with 

 moderately long hairs. Anal segment darker than the other abdomi- 

 nal segments, but scarcely with a pronounced shield as in many larvae. 

 Length, 15 to 16 mm.; width, 1.8 to 2 mm. 



