THE ENTOMOLOGIST. 245 



by the beginning of June, and then rests in a tolerably 

 straight position, generally towards the base of a blade of 

 grass, but when disuubed fulls from lis food-plant, and rolls 

 itself in a tight, but not very compact, ring, the anal ex- 

 tremity protruding in rather a marked uianner over the head : 

 in this altitude it will remain for hours perfectly motionless. 

 Head rather broader than the 2nd segment, prone : body 

 obese, somewhat fusiform, tapering from the 6th to the 13th 

 segment, which terminates in two parallel points above the 

 anal aperture and directed backwards ; surface of the skin 

 rough, almost like shagreen, the roughness caused by minute 

 warts; segmental divisions not well marked, except when the 

 larva is rolled up ; each segment is transversely divided into 

 sections, which are also obscurely indicated ; the sides are 

 slightly dilated ; the surface throughout is pretty thickly 

 covered with arcuate hairs directed backwards. Colour of 

 the head and body opaque apple-green, with a medio-dorsal 

 darker stripe, indicating the position of the alimentary canal, 

 and probably partially due to the presence of food therein : 

 lateral dilatation surmounted with a narrow pale stripe, al- 

 most white ; anal points dirty while, tinged with brown : 

 hairs whiie. Three specimens changed to pupae on the 18th, 

 24lh and 29th of May respectively : head of the pupa ob- 

 tusely eared, the ears distant and short; thorax dorsally 

 keeled, the keel slender and entire ; shoulders of the wing- 

 cases produced into an obtuse tooih : in two instances the 

 larva-skin remained, enveloping the anal extremity, so that 

 the pupa could not be suspended ; in the third it hung for a 

 time from a blade of gi'ass, the skin still enveloping the anal 

 extremity, but attached by silken threads to the grass. Co- 

 lour of the pupa pale apple-green, freckled with whitish or 

 yellowish green, and adorned with purple-black markings, of 

 which the more conspicuous are — Jit'^t, two dorsal series, 

 commencing behind the head, passing on each side of the 

 thoracic keel, broken into spots on the 4lh, 7th, 8lh and 9th 

 segments, and continuous on the remainder ; secondly, a 

 series passing over the ears, and occupying the dorsal mar- 

 gin of the wing-cases ; tJiircllt/, an angulated longitudinal 

 stripe on the wing-cases, dividing them into two nearly equal 

 parts ; fourthly, a shorter stripe nearer the tip of the wing- 

 cases ; and Jifthly, the cases of the fore and middle legs. 



