400 Dr. T. A. Chapman on the 



and translucent, except at ends, to prevent their looking 

 paler from contents. They are still in 1st instar ; the black 

 pigment is in the subcutaneous layer. 



Aug. 31st. — Found three larvae of L. pyrenaica on two 

 of the plants of Androsace villosa sent home to establish a 

 few plants for further necessities. The eggs of these must 

 have withstood the perils of travel to which the plants 

 were subjected. Roughly rolled in paper and sent by 

 sample post, which had very satisfactory results as regards 

 the plants, and, in this instance, without damage to the 

 eggs of L. pyrenaica. It is not unlikely that other plants 

 also had on them some eggs which did suffer, at any rate 

 no other stock plant sent home shows any trace of larvae 

 of L. pyrenaica. 



Aug. 31st. — A larva is detected obviously in 2nd instar; 

 it is very dark, there is a dorsal paler (dark cinereous) line 

 with a broader quite black line on either side of it down the 

 dorsal flanges, below this another dark cinereous band, and 

 below this (from above middle of slope downwards) the 

 black is relieved by various cinereous mottlings. The hairs 

 are rather larger and more conspicuous than in 1st instar. 

 This larva is just under one side of a central bulbil that has 

 been a good deal eaten and destroyed. 



Sept. 9th. — Various larvae can be found apparently about 

 full grown in 2nd instar ; they still mine out the interior of 

 the small leaves. 



At this same date escheri hatched same time are full 

 grown in 3rd instar and thinking of hibernating, some 

 having stopped feeding. 



The larvae continued to grow slowly, sometimes they 

 fed under the central bud, in other instances they were seen 

 actually inside the larger leaves, which they mined out more 

 or less completely ; some rosettes had all the leaves so cleared 

 out, leaving merely the cuticle, both upper and under, in 

 the form of the leaf, but nearly colourless instead of 

 green. As they approached their full growth, in 3rd 

 instar, for hibernation they were verv difficult to see or 

 find. 



They were placed for the winter on their food-plants, 

 undisturbed, just as they had hidden themselves, some out 

 of doors, some in a refrigerator, and some in a cold room. 

 A certain number survived the winter, but I failed to get 

 any of .them to connnence feeding in the spring. 



Oct. 6th. — The larvae are not to be seen, but the plant 



