138 THE ENTOMOLOGIST. 



they a good deal resemble in size and colour. The head is 

 nearly square ; the face flattish, and porrected almost on a 

 level with the axis of the body ; the antennal papillae are 

 very long, parallel and porrected ; the body is long and 

 slender, almost uniformly convex above and rather flattened 

 beneath ; it has an evident lateral skinfold, extending its 

 entire length, and containing the scarcely perceptible spi- 

 racles; the larva is also transversely wrinkled, and on each 

 side of the ventral surface of the 7th segment are two small 

 and approximate warts ; the 13th segment terminates in two 

 connivent conical points directed backwards ; there are nu- 

 merous fine hairs on various parts of the body, and more 

 abundantly on the head. The colour of the head is apple- 

 green, marbled with whiter or glaucous-green, and having 

 pink antennal papillae : the body is apple-green, thickly 

 sprinkled with minute white dots ; the dorsal is paler than 

 the ventral surface, the paler area presenting the appearance 

 of a broad somewhat glaucous stripe ; the lateral skinfold is 

 yellowish, and has a brownish cloud on each side of the 3rd 

 segment ; there is also a similar cloud below the lateral skin- 

 fold on each side of the 7th segment, and including the small 

 warts T have already described ; the legs and claspers are 

 purplish brown ; the anal points are tipped with pink. In 

 the beginning of July, usually between the 1st and 10th, it 

 spins, among the leaves of the ash, a light, open, network 

 cocoon, very simple and slight, but also exceedingly strong 

 and tough, and in this changes to a green pupa, in which 

 state it remains until September, when the moth emerges. 

 I am indebted to Mr. Wright for the loan of a full-fed larva, 

 purposely to descv'ihe.— Edward Newman. 



A Life-hislory of Phyllotoma melanopijga, Klug. — The 

 parent fly, in most instances, deposits its egg on the tip of 

 the leaves of Salix caprea, and never, so far as I have yet 

 been able to discover, does she lay more than one egg on a 

 leaf: occasionally she departs from her usual course of pro- 

 ceeding, and deposits her egg near the centre or at the base 

 of the leaf. Shortly after it is born the little larva works its 

 way into the interior of its food, and, lying on its back (this 

 appears to be the usual mode of feeding adopted by the leaf- 

 mining larvaj of the Tenlhredinida:), begins its larval life by 

 making a small greenish blotch, which afterwards turns 



