THE CANADIAN ENTOMOLOGIST. 9 



now and then discovered, some even in October. I had occasion during that 

 month to remove two of the gooseberry bushes which had been infested, and 

 although I carefully examined the earth from their roots, I could not find any 

 sawfly cocoons. About the same time I examined a dying plum tree which 

 grew near, the bark of which was loose and full of holes, in which, as well as in 

 the forks of the branches within three feet from the ground I discovered many 

 of them. From this it might be inferred that these larva? do not invariably 

 seek the earth before pupating in autumn, but sometimes follow the example of 

 their predecessors, and construct their cocoons in a sheltered place above ground. 



I have made enquiries as to the extent of the depredations of these two 

 insects in this vicinity, and find that in some gardens the ventricosus has not yet 

 appeared. Where it has gained a footing, however, it is a worse enemy than 

 the Ellojyia, though the latter is often very numerous and destructive. It seems 

 to be admitted that an imported insect, in America at least, soon becomes a 

 greater pest than the native which attacks the same plant. 



Nor w r ere these the only foes I had to contend with. In July^geria tipuli- 

 formis [see fig. 5] came out by dozens, in its pretty dress of steel 

 blue and gold,but met with no mercy despite its beauty. The red 

 currant bushes, which had stood in the garden for a long time, 

 were examined in autumn, and nearly every twig found perfo- 

 Fig. 5. rated by this little enemy. I also found a dead pupa of this 



moth in a stem of white raspberry growing near, within a burrow about three 

 inches in length, which the larva had excavated in the pith, 



While searching for the cocoons of ventricosus in the currant bushes, I found 

 several pretty chrysalids, which I secured. The moth these produced was 

 Angerona Crocaotaria, Guene'e, and as I shortly afterwards captured some 

 caterpillars of the same species on the red currant, I am able to give a partial 

 history of the insect. I am, however, indebted to Mr. Saunders, of London, 

 Ontario, for descriptions of the egg and newly-hatched larva, he having kindly 

 placed his notes at my disposal. They are as follows: — 



"On the 27th of June, a female laid in a box in which she was confined, about 

 220 eggs. They were laid in patches or clusters on different parts of the box, 

 containing each from 10 to 40 or 50 eggs. When first deposited, they were 

 yellow, but in a day or two afterwards they changed to a bright red, and on the 

 4th July some which were about to hatch had turned greyish-brown, soon after 

 which the young larvae made their appearance. Some still remained red at this 

 date (4th), but all changed to greyish brown before the appearance of the larvae. 

 They were all hatched by the 7th of July. 



"Egg: oval, v,ii\i a depression above; length, -03 of an inch; greatest 

 width -02 inch. The depression above in each egg led me to think that they were 

 barren and drying up, but in this I was agreeably disappointed. Surface nearly 

 smooth under an ordinary magnifier, but under a power of 45 diameters there 

 appear a number of very shallow, small depressions over its whole surface. 



