JO B. C. KNTOMOI.OCICAL PROCEEDIXGS. UUl. 



1 li:i\c hciMi abli' to work out the lite history nt the butterfly, 



LiiiKin'uis niiiiid. up to the thiril stage, but on reaching this stage the 



larvae refused to eat the food plant provided and they all died. Below 



is given a summary of what I ha\e myself obscr\ed. 



May 31. Found several females ovipositing on the lea\es of the common 



snow hfrr\ bush. ( )ut of ten egg clusters examined, all were laid 



on the unik-r side of the leaf, with the exception of one egg which 



was placed above. Egg period, in one cluster, from May 24 till 



Jime 12. The remainder, taken 31st May, hatched June i2th to 



14th. When newly laid the eggs are of a slight lemon yellow color, 



changing after a few da\s to a dull purplish-red, which again with 



time changes, just before hatching, to a dull ash color. 



On hatching the larvae devour the egg shells and spin a mass 

 of silk in which they congregate. In the first stage the larvae are 

 3mm in length ; general color grayish-green, lighter beneath. Head 

 dark brown, almost black, with a few short straggling hairs, segment 

 behind head brown dorsally. Thoracic tubercles 1, 2, 3, large, 

 brown, 4, 5, d, smaller but same color, 7 and fore-legs brownish 

 black. Fore-legs with a few short hairs. Abdominal tubercles 

 1, 2, 3, large brown, 4, 5, b, smaller, 7 the same as prolegs, which 

 are greenish. Last abdominal segment, gray -brown at apex, body 

 not tapering. After feeding a few days the body shows a decided 

 greenish tinge owing to the food showing through the skin. The 

 young larvae are gregarious in habits and cover the leaf, on which 

 they feed, with a dense silky web. 



2nd Stage. Head bilobed, length 4mm, segment behind head 

 dark brown. Head black, shining, no markings. General color- 

 of body dull black shading into a light brown at anal extremity. 

 Underside light brownish-green : the whole body becomes lighter 

 after a few days. Body armed dorsally and laterally with rows 

 of stout spines, bearing six or seven hairs each, apical ones longest 

 and cur\ed. Owing to color of spines the skin appears brownish. 

 Face hairy. Prolegs dirty brown. Fore-legs darker. Just before 

 moulting a tinge of yellow appears on the dorsal surface of ab- 

 dominal segments. 



Moult 2. Head black, shiny, hairy. General color of body 

 didl black. Three segments behind head marked with a double 

 dorsal row of dull whitish blotches with no definite arrangement. 

 These are continued on each segment to the end of the body. 

 Scattered spots of the same color appear on sides. Abdominal 

 segments 1-8 each bear a dorsal spine of orange yellow. Fore-legs 

 black. Prolegs pale green. Larvae still gregarious in habits eating 

 out the leaf and leaving the veins. 



