INSECTS INFESTING THE HOSE BUSH 259 



CHAPTER CLXVIII. 



The Rose Slug-worm. (Cal..) 



( Sdandiia rosfe. — Harris. ) 



Order, Hymen'optera ; Family, Te^'thredinid^. 



[Feeding upon the leaves of the rosebush ; a naked green 

 worm, provided with twenty-two legs.] 



Fig. 244. — Rose Slug-worm — color, green. Fig. 244. 



These slug-Avorms (Fig. 244) eat only the upper ^^^^ 

 surface of the leaves, leaving the remainder un- 

 touched, thus giving the leaves the appearance of having been 

 scorched. These worms have the head yellowish, with a l)lack 

 spot on each side, and on the edge of the first segment are two 

 triple-pointed warts, \\nien fully grown they desert the plants 

 and burrow a short distance into the earth, where each one 

 forms a small cell in which it spins a tough elliptical cocoon. 

 Two broods are usually produced in one year, the last brood 

 passing the Winter in their cocoons. 



Fig. 245. — Rose Saw-fly — color, black. 

 Fig. 245. rpi^g perfect fly (Fig. 245) has four smoky 



wings, which expand about five lines ; the 

 body is of a uniform black color. The 

 female fly deposits her eggs singly in punc- 

 tures made in a leaf by means of a saw-like 

 instrument with which her abdomen is armed. 



Remedies. — Use No. 64, 5, 7 or 6 ; the latter is excellent, but 

 might mark the foliage. 



CHAPTER CLXIX. 



The Horned Flower-beetle. (Cal.) 



(yotoxus monodon. — Fabricius.) 



Order, Coleoptera ; Family, Anthicid.ts. 



[Feeding upon the petals of the garden rose ; a grayish- 

 brown beetle, having a brown band across the middle of the 



