CARNIVOROUS BUTTERFLIES CLARK 481 



ment sunken, the abdomen swollen in the middle and curving to 

 the posterior segments, Avhich are rounded. The anal segment is 

 appressed to the ventral surface. The cremastral hooks are absent. 

 The wing is ample, swollen, and rounded across the middle; it ex- 

 tends to the fifth abdominal segment. 



The entire surface is minutely granulated and covered with very 

 fine reticulations of a deep amber color. The spiracles are prom- 

 inent and blackish, the surface posteriorly adjoining them beset with 

 a number of shining raised beadlike processes, some bearing minute 

 amber-colored spines Avhich have the apical half branched Avilh ex- 

 tremely small bristles. 



The color when first found was uniformly ochreous, with the eyes 

 dark leaden gray. It gradually turned darker on the head, thorax, 

 and abdomen. The wings remained ochreous, but showed leaden 

 gray hind margins. Then the median wing spots appeared, and 

 soon the whole pupa began to deepen more 'uniformly until it as- 

 sumed a deep leaden gray all over, and remained unchanged for over 

 30 hours. A perfect male emerged at 8.30 a. m. on J'uly 16. 



It was on June 3, 1906, that Mr. Frohawk, in company with Mr. 

 A. L. RajMvard, first found the larva of Lyccena arlon in its last 

 stage. On arriving at the locality where they had previously 

 watched the females laying eggs, they set steadily and systematically 

 to v>?ork, closely examining every particle of growth and of the sur- 

 face of the ground. This occupied the whole of the first day and 

 lialf of the next; the intervening night was spent in making a care- 

 ful search by lamp light. 



As this all proved fruitless, they then determined on searching all 

 the most likely looking ants' nests. First one, then another was 

 carefully dug up and searched without any satisfactory results; but 

 knowing that the object of their investigations must be somewhere 

 in the immediate vicinity, they continued their task, Avhen at length, 

 on shaking part of the crown of a nest over a cloth, a goodly sized 

 plump cream-colored grublike larva fell out, which Mr. Frohawk 

 instantly identified as a full-grown arion larva. 



In the same small portion of the ant's nest they found three 

 more. Of the four, three were of almost similar size, about nine- 

 sixteenths of an inch in length, and one was a good deal smaller, 

 only three-eighths of an inch long. 



These four larva? were only just beneath the surface among the 

 roots of the little plants of grass growing with the thyme. The soil 

 surrounding them Avas loose and friable, having been worked up 

 by the ants. 



In company with the caterpillars there were ants and their 

 larvae and pupse. 



