16 



Figure 10 represents the larva natural size, 

 on the fruit of the raspberry, at a. h shows 

 an enlarged side view of one of the rings or 

 segments of the body of the larva, showing the 

 hairs with which the body is furnishod. The 

 moth of its natural size is shown at c, while at 

 (/ we have an enlarged outline of one pair of 

 the wings. 



With regard to the larva and its habits we 

 cannot do better than quote from Mrs. Treat : 

 " I found my little raspberry caterpillars had a 

 decided preference for the Philadelphia rasp- 

 berry, though I occasionally found them upon 

 the Black-caps. They also seemed to have a 

 great passion for ornaments, for they had stuck 

 all over their bodies dried anthers of flowers 

 and small bits of sticks and leaves, which gave 

 them a very comical and grotesque appearanoe. 



I confined several of these larvse in a box, giving them daily a fresh supply of raspber- 

 ries, and they seemed to thrive as well in confinement as in the open air. Knowing their fond- 

 ness for ornaments, I could not deprive them of these, |so I cut white paper and thread, to- 

 gether with leaves into small bits, and distributed them in the box. Very soon they were 

 decked out in these, the white paper and thread adding materially to their grotesque appear- 

 ance. Not always satisfied with their own accumulations, they would sometimes take the orna- 

 ments from their neighbours, and appropriate them to their own use. 



" I once left the cover to the box not quite secure, and one of them made its escape, com- 

 pletely stripped of its ornaments ; it had left all in the box behind, in squeezing through the 

 aperture. I no sooner returned it to the box than it began to take the ornaments from its com- 

 rades to re adorn itself, rather than to pick up its own, a process which those that were being 

 stolen from did not seem at all to relish. 



" After they ceased eating and were ready to become pup9&, they spun loose cocoons, 

 which they fastened to the top and sides of the box, taking their ornaments to decorate their 

 cocoons, which, in consequence, wore a very rough, uneven appearance. In a few days a little 

 pea green moth issued from these rough cocoons — the most delicate, beautiful little creature 

 imaginable." 



The colour of this larva is light yellowish gray, darker behind each joint, with a promi- 

 nent thorn on each side of the back and with several smaller warts and prickles below : see h. 

 figure 10. Mr. Riley speaks of this insect as being quite common on both the raspberry and 

 blackberry in some parts of Illinois. He says. " It has the peculiar faculty of thoroughly 

 disguising itself with pieces of dried berry, seed, pollen, and other debris of the fruit which it 

 sticks to a series of prickles with which it is furnished. Add to this disguise the habit which 

 it has of looping itself into a small ball, and it almost defies detection. It is most numerous 

 during the months of June and July." This desire which the larvse has of disguising itself 

 has doubtless been given it as a means of protection against small birds, and predacious insects, 

 nevertheless it does not escape enemies altogether, Mr. Riley speaks of one species of parasi- 

 tic insect which he has bred from their cocoons. 



The moth, c. figure 10, when its wings are expanded measures about half an inch. Its 

 colour is pale green with a very delicate semi-transparent appearance, crossed by two lighter 

 lines, body green above, white beneath. 



13. The Flea-like Negro Bug (Corimelaem pulicaria, Germ). 



This is a very disgusting pest which attacks the raspberry fruit. Its presence may be dis- 

 covered by the fruit having a very nauseous buggy odour, and the insect being so small it is 



