GEOMETR.E 



283 



i'lG. 1!):».-The 

 Twin -SPOT Carpet. 



The caterpillar feeds on many trees, the jirincipal of which are 

 the oak, whitethorn and blackthorn. Like the perfect insect, it is 

 very variable in colour, but is generally of a bright green, with 

 reddish or purplish spots on the back and sides. The spiracles are 

 yellow or orange, and below them is a white stripe. It is full fed 

 in June. 



The Tivin-spot Carpet (Larentia didymata) 



The Twin-spot Carpet is common throughout Great Britain, 

 and the beginner is likely to meet with it in June and July 

 during his first season. Oar illustration re- 

 presents the male, the fore wings of which 

 are greyish brown, crossed by several dark 

 lines, and with a double dark and conspicuous 

 ppot near the middle of the hind margin. 

 The female is much lighter, and the markings 

 are -tilso lighter and less distinct. 



The caterpillar is pale green, \\ ith a nar- 

 row whitish line along the spiracles. It feeds in April and May on 

 the leaves of the wood anemone {Anemone iicmorotia), chervil 

 {ClicBrophtjllum tcmuliim), and other plants. 



TJtc Grass KivnJef {Eiiimelesia alhiilata) 



We represent the genus Emmelesia by the Grass Rivulet — a 

 pretty little moth that flies in Jvine, and Mhich is widely distributed 

 though not abundant. 



Its fore wings are pale grey, crossed l)y 

 several white lines, the arrangement of whicli 

 may be seen in our engraving. The hind 

 wings are of the same ground colour, but have 

 no markings except a white wa^y line near 

 the hind mai'gin. 



The caterpillar feeds during July and 

 August on the seeds of the yellow rattle {Rhlnanthus Ciista-galli), 

 protecting itself from its enemies by spinning together the petals 

 of the flowers ; and when full grown it changes to a chrysalis under 

 the same cover. 



The Netted' Pikj (Ei(pithecia venosata) 



We now come to the enormous genus Eupitliecia, containing 

 about fifty small species, most of which are known as ' Pugs.' 



Fig. 196.— The 



GkASS ItlVULET. 



