16 



REPORT OF 



No. 19 



In asparagus beds, where the plants had been allowed to go to seed, many 

 specimens of the Zebra caterpillar (Fig. 1) were noticed in September and 

 early in October feeding on the leaves. This of course was due to the fine, 

 almost summer weather which we have had this fall in Ottawa. 



Among orchard insects the caterpillars of the Codling- moth were abun- 

 dant in orchards which were not sprayed, and later in the season the con- 

 spicuous nests of the Fall-Web worm were noticed in many orchards. This 

 latter insect was also very bad in forests, ash, elm and other trees being much 

 defoliated. In orchards these insects are not only destructive, but make the 

 trees very unsightly. The remedy of cutting off the branches bearing the 

 nests when these are small is such an easy one that I cannot understand why 

 owners of good orchards allow this insect to work on their trees. A few 

 colonies of the Eed-humped apple tree caterpillar (Fig. 2) and the yellow- 

 necked apple tree caterpillar were observed, but of course these did not do 

 much harm. Cedars everywhere were much disfigured by the small cater- 

 pillars of Argyresthia ThujieUa, a beautiful little white moth with bronzy 

 bars on the wings. These minute larvse feed on the tips of the shoots, caus- 

 ing them to die and lose their natural color. 



I am glad to inform the members of our Society that I have been able to 

 continue my collection of lepidoptera, most of my time being spent in work- 

 ing up our small forms, the micros. The specimens which I have brought 

 with me will, I think, delight some of jon. For these small moths the season 

 has been very good at Meach's Lake, where I spent the summer, but speak- 

 ing generally, I do not think the season was as good as 1905, at least in the 

 Meach's Lake district. 



Fig. 1.- 



-(a) The Zebra Caterpillar. 

 (6) The Moth (Mamestra picta). 



Fig. 2. — The Red-humped Apple Tree 

 Caterpillar (Notodont^ concinna). 



Division No. 2. — Midland District. By C. E. Grant, Orillia. 



Though I have been very busy with town work this year, which has pre- 

 vented me from doing a great deal with the net, I have observed that most 

 insects have been unusually common; at the same time the rapid growth of 

 vegetation has apparently reduced the destructiveness of some species. The 

 chief complaint made to me in this neighborhood has been with regard to 

 the Buffalo beetle, which has become quite a nuisance here. Dr. Fletcher 

 was kind enough to send to the Pachet newspaper of Orillia the best methods 



