Insects. 12bl 



emits a bristle : head with the face gray, the crown gray-green, with tvvo transverse 

 reddish bars : body pale green, with testaceous or purplish markings on the mottled 

 back of the 6th and following segments ; these markings combine in forming a broad 

 stripe down the middle of the back,the papilla; being of the same colour as and included 

 in the stripe. Feeds on Betula alba (birch) ; doubles over the corner of the birch leaf, 

 and spins a slight web, in which it changes to a pupa; is double-brooded ; the second 

 brood of larvae is full-fed on the 28th September. For examples of this and the cuspi- 

 date larvae which follow I am indebted to Mr. Thomas Huckett, whose zeal and 

 industry as a collector of Lepidoptera, and as a student of their habits, has rarely 

 been equalled. — Edward Newman. 



Description of the Larva of Dicranura vinula. — Rests with its flat head drawn into 

 the 2nd segment, and its anterior segments elevated; the body is quite smooth, the 

 dorsal outline rising to a pointed hump on the 4th segment, then falling to the 

 6lh segment, then of uniform substance to the 9lb, and thence the body is rapidly 

 attenuated to the 13th, the claspers belonging to which are converted into two horns 

 covered with scabrous points, and each emitting, when the larva is irritated, a slender, 

 pink, drooping filament; head pale brown in front, black at the sides ; the recess into 

 which the head is withdrawn is pink, with a large black spot on each side : body with a 

 white lateral stripe ascending obliquely from each side of the head to the apex of the 

 hump, then descending obliquely to below the spiracle on the 8th segment, then again 

 ascending elliptically and terminating at the base of the horn-like claspers ; above this 

 white stripe the body is whitish, longitudinally striated with purple-brown, the white 

 predominating along the median line, the purple-brown predominating in the vicinity 

 of the lateral white stripe ; below this white stripe the body is yellow-green, with the 

 exception of a purple-brown blotch, nearly round, just above the clasper on the 8th 

 segment: this blotch is bordered above with white ; the legs are yellow-green, with a 

 black ring at the base and black tips ; the eight normal claspers are green, the two 

 horn-like anal ones whitish with black scabrosilies. Feeds on several varieties of nar- 

 row-leaved Salix (willow) ; is full fed in July ; crawls down the stem of the willow to 

 within two, three or four feet of the ground, then gnaws out the bark and spins an 

 extremely tough gluey cocoon in the excavation thus made ; in this gluey cocoon it 

 changes to a pupa, and remains in that state all the v/inier. —Id. 



Description of the Larva of Stauropus Fagi. — Does not roll in a ring or feign death 

 when disturbed ; when at rest throws back its head so as entirely to hide the 2nd, 3rd 

 and 4th segments; the head being quite equal in bulk to these three segments if 

 united ; the posterior segments are at the same time elevated in an extraordinary 

 manner; 1st pair of legs of moderate size, 2nd and 3rd pairs with the femora and 

 tibiae extremely lengthened ; body deeply incised ; 5th, 6th, 7th, 8th, 9th and 10th 

 segments each with two humps ; those on the 5th, 6th and 7th largest and of equal 

 size, the others gradually decreasing in magnitude; 11th, 12th and 13th segments 

 without humps; lllh segment with a small, flattened, dilated, creuulated, lateral margin ; 

 12th with a much more extensive margin, having the same characters ; 13th segment 

 having the two anal claspers converted into stiff, slightly clavate, slightly curved ap- 

 pendages or tails. The colour is testaceous-brown, covered throughout with pale 

 points like shagreen ; there are two interrupted, slender, black stripes down the back, 

 and a paler median stripe between them ; there are moreover several slender black 

 markings on both sides of the larva. This singular larva, which is known to collectors 



XV HI. 3 o 



