3o6 LEPIDOPTERA. 



colour pale bluish green, still paler beneath and on the sides ; 

 dorsal line distinct, darker green; sub-dorsal line faintly paler 

 than the ground colour ; the whole surface of the back and 

 sides irrorated with minute greenish- white points or raised 

 dots. As the larva grows, veiy little change in colour is 

 observable ; but the head shows an ochreous streak from the 

 crown down the front of each lobe, and a broad transverse 

 streak above the mouth, while the body shows faintly a 

 whitish spiracular stripe or ridge. Mr. Buckler, from whose 

 details the latter portion of this description is condensed, 

 watched carefully the mode of life of the larvse. He says 

 that when they emerged from the eggs he lost sight of them, 

 and could not find them for a fortnight, when he detected 

 them feeding in little caves formed by drawing together three 

 leaflets of the food plant with silken threads. Each habita- 

 tion was formed by the two outer leaflets being drawn 

 together, almost close, and the middle one bent over them 

 like a curved roof ; all this was managed so naturally that the 

 cave passed easily for a leaf not quite expanded. The larvEe 

 fed on the inner surface of the leaflets and constructed new 

 habitations, in the same manner, whenever necessary. As 

 they grew older they began to eat away the whole thickness 

 of the leaflets forming their habitations, so that their bodies 

 became exposed to view ; upon which they always moved to 

 fresh leaves, in the night, and continued this habit through- 

 out, until in August they became full fed, left their habita- 

 tions, and spun silken threads on the covering material of 

 their cage, drawing the leno together into a sort of fusiform 

 habitation with bundles of silk, in which to settle down for 

 hybernation. Probably when feeding naturally some fallen 

 leaf or vegetable refuse upon the ground is made use of for 

 this purpose. The larva lies in the hybernaciilum thus 

 formed until the spring before assuming the pupa state. 

 This larva is very ugly, from the staring appearance of its 

 prominent head with its strongly marked eye-like lobes and 



