NOTES AND OBSKRVATIONS. 231 



seven full-fed Jirmtria larvfe pupated. In three instances four pupated 

 together, in five instances two, and in another three, i.e., twenty-seven 

 pupte in ten cocoOns. A curious result was that, in two of the quad- 

 ruple cocoons, the first imago ready to emerge proved unable to force 

 an exit, and, consequently, the remaining three were imprisoned, for 

 there was only one exit, and they could not or would not break through 

 elsewhere. In every case they were genuine joint cocoons without so 

 much as the slightest film between the pupsB. Tlie same thing 

 happened with a brood of E. lanestris, but on a much smaller scale. 

 In about eighty cocoons there are three instances of joint ownership, 

 three, three, and two respectively. I am not absolutely certain, in this 

 instance, that there is no partition, as they are not due to emerge till 

 nest year. But they are not merely stuck together (that frequently 

 happens), but in one lump, so to speak. It may be worth mentioning 

 that the lanestris were in a cage three or four times as large as that in 

 which the neustria pupated, so, perhaps, there was less likelihood of 

 joint cocoons. — E. Mannering ; 46, Wickham Road, Beckenham, 

 August 25th, 1906. 



AciDALiA iMMORATA. — After a failure to get larvse of this species 

 through last winter, I have succeeded in breeding a second generation 

 from ova laid by some females caught by me in the locality near Lewes 

 on June 30th last. The ova were laid on July 1st and 2ud, and I got 

 about forty in all. They hatched on July 17th and 18th, and were at 

 once placed on leaves of Plantago lanceulata, and as soon as they were 

 large enough were transferred to a potted plant and kept out of doors. 

 Two of the larvffi at once proceeded to grow at a great pace, and, as 

 they appeared to me large enough to be full-grown, I removed them 

 from the growing plant, and took them indoors on August 26th. They 

 fed for a few days longer, and one spun up on August 28th and the 

 second on September 1st. The first larva spun against the side of a 

 glass pot in which it was kept, making a slight silken cocoon, under a 

 dead leaf, on the surface of the earth covering the bottom of the glass; 

 the second also spun up under a dead leaf on the surface of the earth. 

 The cocoons were both large for the size of the pupa, and, as a matter 

 of fact, would hold at least six pupae. The first larva pupated on 

 September 2nd, and it produced a female imago on September lith. 

 The imago from the second pupa has not yet emerged, but will 

 probably do so in a few days. With regard to the larva, it is very 

 small and thread-like at first, and is practically unicolorous light 

 greenish-brown until half grown, when it assumes the full markings 

 of the adult larva. There is very little to add to the description of the 

 larva in Barrett's 'Lepidoptera of the British Isles.' It tapers towards 

 the head, the dorsal lines are continued over the head, the dots on 

 either side of the dorsal lines as in a small brownish cloud ; the 

 under surface is putty colour, with traces of wavy lines ; the dark 

 brown side line is continued along the sid&s of the head, and there is 

 a buif stripe below it, in which are the spiracles, which is continued 

 down the claspers. When full grown it is a little over an inch in 

 length. The larva feeds in a somewhat peculiar way, as it does not 

 rest on the leaf on which it is feeding but on a neighbouring leaf or 

 grass-stem. When young it eats pieces from the margin of the neigh- 



