74 LEl'IDOI'TERA. 



middle an irregular slender transverse black-brown line, 

 followed by faint similar clouds; all the hind martjins edged 

 with fine black lines. Body and legs whitish-brown ; the 

 hinder pair of legs rather shortened and thickly scaled. 



Only a little variable in the intensity of the brown dusting, 

 and in the darkness of the transverse lines and clouds. 



On the wing in July. Rarely, a ])artial second generation 

 has been reared, in September, in confinement. 



Lakva nearly an inch and a half long ; cylindrical, very 

 slender, and tapering slightly towards the head. Head not 

 notched on the crown, as wide as, or a little wider than, the 

 second segment ; face slightly Hattcnod ; lobes globular. 

 Skin ribbed transversely, rather uuiibrinly rough ; grey, 

 tinged with green ; the head grey, variegated with very pale 

 brown; dorsal line distinct, narrow, dull green; subdorsal 

 and spiracular lines very inconspicuous, composed of con- 

 fused, waved, faint brown lines ; spiracles very small, brown. 

 On the middle of the back, on the extreme anterior edge of 

 the sixth, seventh, eighth, and ninth segments, is an intenselj' 

 black square niarJc, divided into two distinct spots by the 

 dorsal line ; slightly in front of each of these are two other 

 e(iually black but smaller dots, one a little to the right, the 

 other to the left, at the posterior edge of the segments ; 

 undersurface pale greenish-grey, with a still paler central 

 stripe, and on each side of this stripe are one or two very faint, 

 pale brown, zig/-ag, longitudinal lines. (Geo. T. I'orritt.) 



August till June ; on CiciiKdis ritclha ; also in confinement 

 on knotgrass and dandelion, preferring the withered leaves. 

 When kept in a greenhouse, or otherwise in a very warm 

 room, it has been induced to feed up in August, and produce 

 the moth in the following month. ilofFmann states that it 

 feeds also on Viola, Veronica, Vicia, Oriyanum, and St(u;hijs. 



PcPA apparently undescribed ; JMr. Porritt found that its 

 cocoon was more firmly constructed than those of the species 

 of Acidalia, and was placed at the base of the food plant. 



