212 



THE BUTTERFLIES OF THE 



The egg represented in Fig. 60 is similar in form and 

 size to that of L. Arthemis. The eggs are pale yellow at 

 first, but soon change to gray. 



The young larva is yellowish brown mottled with dark 

 streaks, especially below the stigmata; head twice as 

 large as joint 2, and bilobed. Each joint is divided by 

 a transverse impressed line, and on the top of the folds 

 thus made are four elevated spots, the anterior the largest. 

 There is also a subdorsal and substigmatal row of similar 



PIG. 61. 



L. Dieippufl: a, mature larva; e, hibernaculum ; d, leaf eaten all but 

 midrib. 



warts, from each of which springs a pale bristle. The 

 second period scarcely differs from the first. In the 

 third period the horns acquire their mature proportions, 

 and the whole surface of the larva becomes more granu- 

 lated. In the fourth or last period the blue points 

 appear, and the lateral rows of tubercles lose their con- 

 spicuousness to a great extent. 



The mature larva is 1.2 inches long; general color 

 either whitish or olive-green. Body thickly granulated. 



