THE ENTOMOLOGIST. 339 



Description of the Larva of Colias Edusa. — Rests in a 

 nearly straight position, but with the anterior segments 

 slightly raised, and the head slightly bent under Sphinx- 

 like ; when annoyed it falls from the food-plant and forms a 

 complete ring : the head and body are of nearly uniform 

 width, the body cylindrical, the thoracic segments somewhat 

 incrassated, the terminal segments somewhat attenuated ; 

 the crown is gibbous and without a notch ; the head is 

 covered with minute warts, and each wart emiis a short hair; 

 the segmental divisions are indistinct and transversely 

 wrinkled, the wrinkles dividing each segment into narrow 

 sections, each section composed of a series of minute warts, 

 and every wart emitting a short hair : in form and habit this 

 larva very much resembles that of Pieris Rapae. The colour 

 of the head and body is grass-green, the minute warts being 

 black and each surrounded by a whitish ring : there is a very 

 distinct but rather narrow whitish stripe along each side, com- 

 prising the spiracles, which are yellowish ; it commences on 

 the 2nd and terminates on the 12lh segment. It feeds on 

 Trifolium repens (Dutch clover), and is full-fed at the end of 

 July. I am indebted to Mr. Buckler, of Lumley, for the 

 opportunity of describing this larva, the long-continued diffi- 

 culty of procuring which has rendered its existence almost 

 mythical. — Edward Newman. 



Description of the Larva of Selenia tiliaria. — The eggs 

 of this moth are laid side by side on the bark of the beech- 

 twigs. The caterpillar is full-fed during the first or second 

 week in Jul}', when it rests in a straight position, and has a 

 remarkably stick-like appearance ; the head is porrected on 

 the same plane as the body, the face is widest at the mouth, 

 and the head is altogether wider than the 2nd segment ; the 

 thoracic segments are attenuated ; the 6lh and 9th have 

 transverse dorsal ridges, that on the 6th extending to the 

 sides, that on the 9th being dorsal only ; the 7th segment 

 is inflated below, the inflation extending to the sides, and 

 being ventrally divided into a transverse series of four warts ; 

 the 12th has two small warts, and the 13th terminates below 

 the anal flap in two nipple-shaped processes directed back- 

 wards, each nipple bearing at the exti*emity a single bristle ; 

 the anal claspers are large and spreading ; the third pair of 

 feet are seated on a marked ventral protuberance, and each 



