25 



(Report No. 14) Professor Saunders also referred to it, in his address as president of the 

 Entomological Society, as prevailing to an alarming extent in the neighbourhood of 

 London, to the serious injury of the shade trees. It has been very destructive also in 

 large portions of the United States, especially in Ohio, Illinois and Missouri. It appears 

 to prefer the red maple, but also infests the sugar maple, and to a smaller extent the other 

 varieties. The moth is wasp-like in appearance ; the wings being transparent, while the 

 head is orange, the thorax yellow, and the abdomen bluish-black, banded with golden- 

 yellow. The eggs are laid in crevices of the bark, and in a few days the larvae emerge, 

 and burrowing inward feed upon the inner layers of the bark and the sapwood. Irregular 

 cavities are thus formed, which are packed with the excrements and morsels of wood. The 

 larva when full grown is about two-thirds of an inch long ; white, with a yellow head 

 and reddish legs. It may be readily distinguished from the larvae of the Uroceridse, 

 already described, or from those of some beetles which will hereafter be mentioned, by the 

 fact of its having sixteen legs, while the others have either only six, or are footless. When 

 fully grown the larva spins a cocoon, and the moths begin to emerge in June, and may be 

 found during that and the following months. Trees with smooth bark do not seem to be 

 attacked, and those suffer most which have already been the victims of injuries, or of the 

 attacks of other borers. It is therefore recommended to coat the bark with a mixture of 

 soft-soap and a strong solution of washing-soda, made about as thick as paint. This will 

 not, of course, kill the larva? already at work, but will prevent the laying of eggs. I have 

 found the evidences of the presence of this species in increasing numbers during the past 

 two seasons in Ottawa. 



7. Lithacodes Faciola, H. S., is a small moth, of which the larva is known as the 

 maple-slug. This slug is of a flattened elliptical shape. The moth is small, and has a 

 light band running across the anterior wings. 



8. Edema Albifrons, Sm and Abb. This greyish moth expands about an inch across 

 the wings, the anterior of which have a white patch on the costal border. The caterpillars 

 are smooth and striped, with yellow and fine black lines, with head and hump on eleventh 

 .segment red. They are sometimes very abundant in the autumn. In 1883 they were 

 especially so in this neighbourhood, and apparently elsewhere. At the annual meeting of 

 the Entomological Society, in October of that year, Mr. E. Baynes Reed reported them 

 as com mon in London on the maples, and on elms in Toronto and Montreal, while other 

 members reported them common on oak. The moths may be found at rest during the day 

 on the trunks of the trees. 



9. Telea Polyphemus, Hubner. This is one of our largest moths, the wings expanding 

 about five inches. The caterpillar, Fig. 3, is, when fully grown, about three inches long, 



and correspondingly stout, 

 of a pale green, with 

 small orange or reddish 

 tubercles on the segments, 

 and oblique whitish lines 

 on the sides of the pos- 

 terior ones. It is most 

 frequently found upon 

 oak, but feeds also upon 

 ma|)le, and, from the 

 length of its existence in 

 the caterpillar state, its 

 remarkable size, and enor- 

 mous appetite, it can do 

 much damage. The moth 

 is of a dull ochre-yellow 

 colour, with a clear eye- 

 like spot in each wing, 

 and a dusky band, edged with whitish-red running parallel to the outer margins. 



Fig. 3. 



