29 



33. Hyphantria Textor Harris. 



%t 



The following species are stated to feed on maples by Dr. Thomas, Entomologist for 

 State of Illinois : — 



31. Agrotis C-nigrum Linn. Larva known as " Spotted Cut-worm," feeds on grass, 

 vegetables, pear tree and maple. ^tig* 



32. Eacles Imperialis Hubner. J A very large moth, extremely rare in Canada. 

 Caterpillar about three inches long, with rows of spinous tubercles. Feeds on sycamore, 

 oak, pine, maple, etc. 



This species is very abundant and obnoxious 

 throughout Canada, being known as the Fall 

 Web-worm, from the fact that the young larvae 

 live and feed together in a web which they spin 

 upon the branches of the plant upon which 

 they are hatched. The moth itself is a small 

 white miller (Fig. 9, c). The larvae (Fig. 9, a) 

 feed on nearly all trees and shrubs. 



34. Limacodes laticlavia Clem. 



35. Orgyia leucostigma Sm.-Abb. A common 

 moth, having a caterpillar (Fig. 12) covered with 

 yellowish hairs ; four brush-like yellowish tufts 

 on back ; two pencils of long black hairs on 

 segment behind heid, pointing forward, and 

 another on the posterior end pointing backward. 



Fig. 9. 



Fig. 12. 



Feeds on a great variety of trees, including 

 oaks, apple, spruce, larch, maple, etc. Fig. 10 

 represents the male moth ; fig. 1 1 a the wing- 

 less female ; b a young caterpillar hanging by 

 its silken thread ; c and d pupae ; fig. 1 2, the 

 caterpillar fully grown. 



DIPTERA. 



In this order, that contains the flies, 



insects distinguished by having only two 



wings, we do not find many species attacking 



the maples. Indeed I have no personal knowledge of any, and Dr. 

 Packard only mentions the following species which does not appear in 

 our Canadian lists of Diptera. It belongs to a genus in which we have 

 several well known destructive insects, popularly known as midges, 

 such as the Wheat midge, C. tritici, and Clover-seed midge, C. lequ- 

 mincola. 



36. Cecidomyia aceris Shimer, on Acer dasycarpum, the silver 

 maple. 



GOLEOPTERA. 



Of beetles we find quite a long list infesting the maple, 

 species belong to the Cerambycidee, or long-horned beetles, a 

 containing nearly all the large beetles of 

 which the larva? are known as "borers," 

 and of which species infest all our trees, 

 although some trees, such as the pine and 

 hickory, are much more infested than are 

 the maples. 



37. Glycobius speciosus, Say, is uni- 

 versally known as the sugar-maple borer, 

 and has been frequently referred to in our 

 Reports (See ETos. Ill, VIIL, IX., XL 

 and XII.) The beetle (Fig. 13) appears to 

 be rare in this neighbourhood, but in the 



Fig. 10. 



Ten 

 family 



