250 THE ENTOMOLOGIST. 



August 1st. — Female dead, having deposited eggs during the 

 last twenty-four hours. These are shining golden yellow, of a 

 small size for the insect, ovoid in shape, and attached by one 

 end in close patches of about one hundred and nineteen and 

 twenty-one respectively on upper sides of two adjoining white- 

 thorn leaves, and forty-seven on under side of another leaf — say 

 about one hundred and eighty-seven in all. 



August 26th. — Some of the ova are now turning lead-coloured. 



August 29th. — About eight larvae emerged. 



August 31st. — Larvfe have not begun to feed yet, though 

 fresh whitethorn leaves are within one-eighth inch of them, they 

 appear to be spinning a web over the dead leaf close to the eggs 

 and resting thereon. Remainder of eggs developing a dark speck 

 at apex. {Note. — These eggs failed to hatch, not more than a 

 dozen emerging in all ; possibly this was caused by the juices of 

 the partially dead leaf acting upon the eggs.) 



September 1st. — Larva; have now extended their web to a 

 living leaf, and are feeding on the under surface. 



September 7th. — Changed food for first time, leaving larvsG 

 in web on old leaves, and dropping same on new leaves. 



September 9th. — Larvfe have not moved for two days, and 

 appear to be hybernating. 



September 13th. — Larvse are feeding again. 



September 16th. — Put some plum into cage. 



September 18th. — Larvae are eating plum freely, feeding only 

 on the under side of the leaf where a hawthorn leaf overlaps. 

 They remain in their nest during the day, and feed at night. 



September 28th. — Put in more plum, larvas having eaten the 

 under surface of about a square inch. There are now six larvae 

 alive, one in second (?) skin, just ready to change, the others in 

 third skin, the longest being about a quarter of an inch. They 

 are very hairy, reminding one of young Malacosoma (Bomhyx) 

 neustria. They have formed a tight nest of a curled dead leaf 

 attached to a living one, but chiefly rest on the denuded surface 

 of the living leaf. 



October 5th. — Larvae still feeding slowly. They have now 

 attached their nest very firmly to adjacent twigs by bands of 

 silk threads. 



October 19th. — Larvae have not left their nest for a week or 

 ten days, so removed the cage into a cool place in the garden for 

 hybernation. 



March 21st, 1903. — Three larvae out of hybernaculum. Re- 

 moved them from old web, and placed them on budding shoot of 

 whitethorn. 



March 26th. — Larvas have spun up in terminal shoot of white- 

 thorn, and are feeding on the entire leaves. 



April 1st. — Larvae now nearly three-eighths of an inch long. 

 They feed in the sunshine, retreating into their nest at night. 



