THE ENTOMOLOGIST. 



No. 7.] OCTOBER 14, MDCCCLXIV. [Price 6d. 



Descriplion of the Larva of Chortohius Pampliilus (Small 

 Heath). — The eg^s are laid on Narrlns stricta and several other 

 species of grass, in May and June; tlie larva emerges in fourteen 

 or fifteen days, and is full-fed in about thirty days, or at the 

 end of July : it then rests in a perfectly straight position, re- 

 posing on the stalk of the grass. Head subglobose, sliglitly 

 broader than the 2nd segment : body somewhat fusiform, 

 gradually attenuated towards the anal extremity, where it 

 terminates in two short points directed backwards ; dorsal 

 surface of each segment divided transversely into narrow 

 sections, and these sections, being covered with minute sca- 

 brous points, give it the appearance of being finely sha- 

 greened. Colour of the head opaque green, the mouth and 

 ocelli almost black ; body delicate apple-green, with a clearly 

 defined and moderately wide medio-dorsal darker stripe, 

 bordered on both sides by a narrow paler stripe ; on each 

 side, and including the spiracles, is a broader and less clearly 

 defined dark green stripe, bordered towards the ventral sur- 

 face by a narrovv but very distinct l)right yellow-green stripe; 

 the spiracles are wainscot-brown, and each emits towards the 

 head a faint nebulous ]3aler line, reminding one of the tail of 

 a comet ; about equidistant from the dark medio-dorsal stripe 

 and the yellow-green subspiracular stripe, is a third stripe of 

 two tints, its dorsal margin dark green, its ventral margin 

 yellow-green ; anal points pink ; legs tinged with pink ; 

 claspers concolorous with the ventral surface. When full- 

 grown my larva spun a little band of white silk round a stalk 

 of Polygonum aviculare, and, suspending itself therefrom by 

 the anal claspers, changed to an obese pupa, suspended by 

 cremastrae : the head broadly truncate, the thorax dorsally 

 rounded, the colour vivid apple-green, delicately irrorated 

 with white dots ; costa of wing-cases with a double stripe, 

 the outer portion purple-brown, the inner white. I am 



VOL. II. G 



