i(5p LEPIDOPTERA. 



each side of the fourth segment is a short, distinct, oblique, 

 bright yellow stripe edged with reddish ; one much more 

 obscure on each side of the third ; hinder edge of the dorsal 

 hump sharply outlined with yellow ; anal segment edged with 

 yellow, and with a distinct yellow stripe along each side, 

 meeting behind. Legs pink ; prolegs green, with a black 

 ring on the outer side ; and brown hooks to the feet. When 

 quite young the raised spots are very large and black, each 

 furnished with a black bristle, but as the larva grows the 

 tubercular spots do not increase proportionately in size, and 

 the colour gradually changes. The young larva does not 

 assume the extraordinary attitude of rest already described 

 in the adult. (Condensed from Buckler.) 



End of May and June on birch ; but on the Continent 

 found also on elm, hornbeam, blackthorn, and plum. In 

 confinement it will eat apple, pear, Guelder-rose, buckthorn, 

 honeysuckle, or sallow, if supplied with those plants from the 

 time of hatching. 



This larva with us is tender and rather difficult to rear, 

 also liable to diarrhoea. Mr. W. H. Tugwell found that when 

 in this state, and very dirty, with no apparent prospect of 

 recovery, by washing them in cold water and thoroughly 

 cleansing them with a camel's-hair brush, the disease was 

 removed and he was able to rear them. 



Pupa rounded, with short wing-covers, but the antenna- 

 cases well developed ; abdominal segments deeply divided 

 and rather tapering ; covered with a faint whitish bloom. In 

 a cocoon of silk and earth, occasionally under moss on the 

 surface of the ground, but usually at a depth of several 

 inches. In this condition through the winter, but in confine- 

 ment almost always found to remain in pupa two winters and 

 occasionally more. 



The moth doubtless flies at night, but has not. apparently 

 with us been observed upon the wing. The only method of 

 capture, so far as I am aware, is by searchirig the trunks of 



