LEPIDOPTEKA (MOTHS). 



193 



and lays her ova upon the leaf of the cherry-trees. The young 

 larvae soon commence to form a case, which in this species is 

 pistol - shaped, dark - brown with a white border around the 

 opening (fig. 88, a). In form it is something like a snail-shelL 

 The larvse live inside these cases on the leaves, and eat away the 

 tissue in the same way as the pear slug-worm. They grow 



Flo. 88.— Cherry-tree Casf.-bearev. (Coleophora anatapcneUa). 

 A, Larva in case ; ri, larva fiec ; c, pupa ; d, adult. 



slowly, and remain on the stem and boughs of the cherry-trees 

 all the winter. The case is so like the colour of the bark that 

 they are then very difficult to detect. The larvse jjupate in 

 these cases, and then remain closely attached to the leaves or 

 the twigs. Tliey crawl about slowly, the larva putting its head 

 and three front segments and six legs well out when crawling 

 about. 



Remedies. — Arsenical washes soon kill them ; no others will 

 have any effect, as they are protected by their so-called ■' houses.'' 



