the Life History of Trichoptilus paludttm. 141 



stretched one 8 mm. long. Several were, however, in the 

 previous skin, and one so small that I took it to be in the 

 antepenultimate. This was clearly erroneous. 



The following day, June 1st, several fixed themselves 

 for pupation, one on the under-side of a Droscra leaf, 

 another on a thread of heath-stem. 



June 2nd. Several moi'e fixed themselves up. 

 „ „ 1 pupated this afternoon. 

 „ 3rd. 7 a.m., two are now in pupa. 

 The rapidity of their finishing feeding is apparently great. 

 The temperature of the last day or two has been about 70°. 



June 15th. The last larva has pupated. 



„ 18th. 1 moth emerged this morning and one in 



the afternoon. 

 „ 19 th. 3 emerged about 10 to 11 a.m. 

 „ 21st. Two more moths emerged yesterday. 



These seven moths have all been confined over a pot of 

 food plant as they emerged. Yesterday one was found 

 entangled in a fold of the muslin cover, this is probably 

 the same one that is found dead this morning with one 

 hind-leg missing. Another is found attached by the 

 Droscra gum to a leaf by the tip of one leg. Two eggs 

 are also detected, one beneath a petiole, and the other 

 attached to a gland-stalk at the margin of a leaf. 



June 29th. The last moth emerged to-day. 



Mr. Snuth notes on July 15th that all four of his 

 pallidum pupae emerged. Two paired, and the female was 

 kept alive and laid eggs by the 19th on and around the 

 food plant ; it was from some of tliese ova, as well as from 

 some laid by my own moths, that I was able to rear 

 examples of the summer brood. 



He also gives me a note on the emergence of the moth 

 from the pupa, as follows : " July 25th. Watched an 

 imago oi 'pallidum emerge about 12 o'clock (noon). When 

 first seen, about half the insect was free from the pupa, 

 which was attached to the side of a tumbler ; it then 

 remained perfectly still, except for a slight gliding forward 

 motion which continued for about three minutes, by which 

 time only three segments remained in the pupal case, then 

 all movement ceased for a few seconds, when, with a 

 sudden jerk, the insect shot forward and downward 

 alighting on the glass about two inches from the pupa. 

 All the time it was under observation, the antennae and 

 first pair of legs were free but perfectly still," 



