156 LLOYD'S NATURAL HISTORY. 



This species is a native of Europe and Western Asia. 



It expands nearly two inches. 



The thorax and fore-wings are deep grass-green, the latter 

 being crossed by two oblique whitish lines. The hind-wings 

 and abdomen are glossy white. The palpi, antennae, and legs 

 are tinged with red. 



The larva is green, with a lateral yellowish line and a dorsal 

 tubercle on the second segment. It frequents various trees, 

 but seems most partial to the oak. The pupa is pale green, 

 with a black dorsal line. The Moth appears about the middle 

 of June, and is much scarcer in Britain than the last species. 



FAMILY XV. LITHOSIID,. 



Eggs. Usually resembling round pearly beads. 



Larva. Cylindrical, with sixteen legs, clothed with short or 

 moderately long hair, arranged in tufts ; gregarious, and often 

 feeding on lichens. 



Pupa. Enclosed in a cocoon. 



Imago. Allied to the Arctiidtz, but the ocelli are gener- 

 ally absent; the fore-wings are long and narrow; and the 

 hind-wings rounded. The neuration is usually simple, and the 

 colours seldom much varied. Most of the species fly in the 

 evening, but some of the more brightly-coloured species by 

 day. When the former are beaten out by day they simulate 

 death in the net. 



The Lithosiidce. are a very extensive Family, with ciliated or 

 slightly pectinated antennae, slender bodies and large wings ; 

 in most cases the fore-wings are much narrower than the hind- 

 wings, and overlap above them when at rest. The fore-wings 

 are rounded at the tips, and the hind-wings are rounded. 

 The species are generally simply coloured, being white or 



