ANCHOOELIS RUFINA. 63 



on the bark, to which they closely assimilated in 

 colour. 



The egg is of a circular shape, flattened beneath and 

 rounded above, and numerously ribbed and rather 

 glistening ; in colour pinkish-brown above with a 

 paler blotch on one side of the circumference ; a zone 

 follows of rather deeper pinkish-brown ; and the base 

 is a pale drab tint. On the 4th of April, 1883, some 

 of the eggs changed to dark drab and others to a 

 lighter colour of a pale drab all over ; and by the even- 

 ing of the 5th six hatched, two in the morning of the 

 6th, three on the 8th, four on the 9th, one in the even- 

 ing, two on the 10th, one on the 11th, and one on the 

 12th. 



The young larvse, which were fed with elm buds just 

 bursting, appeared strong and vigorous, and looped 

 in walking. Their colour was a tender drab- grey, or 

 pinkish-grey, with deeper grey-brown dorsal vessel 

 showing through the skin as far as the tenth segment ; 

 the head lightish brown and glossy ; tubercles indis- 

 tinct, but the hairs from them very perceptible ; the 

 last three segments dirty whitish, but in a few hours 

 after feeding these became, like the rest of the body, 

 a pale drab ; a light or whity-brown plate is on the 

 second segment, well divided in the middle by two 

 dusky lines and similarly edged at the sides ; the 

 tubercles dusky and the hairs also ; in three days' 

 time their bodies were of a uniform drab tint and 

 showed the details of dusky dots and hairs distinctly. 

 On the 14th of April they had become green with 

 shining skin, having a whitish dorsal stripe, whitish 

 subdorsal and lateral lines, and a broad whitish 

 spiracular stripe ; when walking they loop, using three 

 pairs of ventral legs, holding on with them and the 

 anal pair, with the first ventral pair shorter and held 

 free when at rest in the letter s-like posture ; on the 

 17th, all the lines were, when seen through a lens, 

 beautifully distinct ; only a brown outline discernible 

 of the front plate, as the second segment is marked 



