ACIDALIID.-E—ACIDALIA. 5J 



generation in August and September ; but in continement, if 

 kept warm, tbe second generation becomes more complete, 

 and occasionally a third is obtained during the year, but of 

 smaller size, and having the apex of the fore wings rather 

 more blunt. 



Larva slender, tapering considerably towards the head ; 

 ground colour dull whitish-grey ; back reddish ; dorsal line 

 black, very slender and indistinct ; subdorsal line black, 

 broader and more distinct upon the capital and anal segments ; 

 spiracular lines dull yellowish-white, puckered; on each side 

 of the tenth segment, which is slightly enlarged, is a dull 

 yellow spot ; undersurface whitish in the middle, but the 

 division of the anal segment black, and a black oval spot, 

 slightly edged with white, upon each segmental division ; 

 head whitish with a central black line ; anal segment whitish ; 

 whole body rough, wrinkled, minutely studded with whitish 

 tubercular spots, and sprinkled with a few short bristly 

 hairs. (Rev. H. H. Crewe.) 



July or August till April or May ; or feeding up rapidly 

 in the beginning of August ; in which case those of the 

 second generation usually feed from October till May. On 

 dandelion, knotgrass, golden-rod, plantain, chickweed, and 

 other low-growing plants, also in confinement upon plum. 



Pupa shiniug dark red-brown ; wing-covers dark green, 

 the nervures visible ; stigmata distinct, pale ; cremaster 

 furnished with two minute parallel spikes. In a very slight 

 cocoon among rubbish. 



The moth hides during the day in bushes or sometimes 

 among heather, but is not difficult to disturb, yet tlies but 

 a very short distance before hiding again ; it begins to move 

 about of its own accord just after sunset and flies till dusk, 

 probably later, siuce it comes occasionally to a strong light ; 

 but it is always sluggish and weak in its tlight. A very 

 widely distributed species, preferring the bushy parts of 



