104 Roses for Amateurs. 



contend against. Though the majority are leaf-feeders and 

 fairly easily disposed of, there are some few that feed 

 concealed in such a way as not readily to be seen or dealt 

 with, while there is at least one that is occasionally met 

 with that lives in the pith of shoots. Of the leaf-feeders 

 proper one of the worst depredators is the Caddice Sawfly 

 (Lyda inanita), whose yellowish-green, red-lined, black- 

 spotted larva elaborates from its food-plant a most ingenious 

 case in which it feeds concealed, much after the fashion of 

 the Caddice-grub of our ditches and certain species of 

 Clothes Moth. Equally common and quite as destructive is 

 the Rose Slug (Eriocampa rosa), a sluggish, yellowish- 

 green creature that destroys the epidermis of the leaf, 

 causing it to die. When full-fed it becomes a pupa in a 

 cocoon in the soil. 



Still keeping to very common species we have Blenno- 

 campa pusilla, a short, thickish green larva, with a brownish 

 head. It is one of those species that live a more or less 

 concealed life, beneath a turned-down leaflet. The pupal 

 state is also passed in the soil. Cladins pectinicornis is not 

 only a fairly common insect but is also double-brooded. The 

 larva is deep green, warted, and hairy. It may be found 

 feeding on the under-surface of the leaflets in the vicinity 

 of the midrib. The pupal state is passed in a cocoon between 

 leaves, as is also the larval state of the autumn brood. Even 

 more numerous and more catholic as regards its tastes is 

 Clddius Padi, which frequents fruit as well as flower 

 gardens, eating holes in the foliage. 



A distinctive and very hurtful species is Etnphytus 

 cinctus, whose larvae may often be seen feeding, in the 

 characteristic attitude of the species, on the edges of the 

 leaflets with the tail extremity curled over; while, having 

 regaled themselves, they curl up contented on the under-sur- 

 face of the leaflets. The caterpillar is green above, and has 

 shiny white tubercles, the sides being greyish. Frequently 



