THE CANADIAN ENTOMOLOGIST 399 



detritus which is used as an incubator for the larvae and pupae, the 

 carton nests constructed in trees by various tropical ants of the 

 genera Crematogaster, Azteca, Dolichoderus , and Polyrhachis, and 

 the extraordinary silken nests of Oecophylla smaragdina and some 

 species of Polyrhachis and Camponotus, which are woven by the 

 ants using theFr spinning larvae as shuttles. 



THE EXCURSION TO GRIMSBY. 



In accordance with the prearranged programme, the visiting 

 entomologists were all invited to participate in an excursion to the 

 town of Grimsby, which is situated near the centre of the chief 

 peach district of the Pro\-incc. About thirty-fi\-c availed them- 

 selves of the opportunity. It had been expected that the party 

 would arrive in Grimsby soon after noon, but owing to a very 

 severe thunderstorm the pre\"ious evening, the electric cars were 

 running irregularly and it was not until about 2 p.m. that we 

 arri\'ed there. Limch was it once served. After lunch there 

 were two or three very interesting, short addresses of appreciation 

 of the pleasant trip and of the entertainment. Immediately after- 

 wards those who were enthusiastic collectors set out in a body to 

 search the llower-clad side of the so-called mountain for their 



favorite kinds of insects. The remainder, under the guidance of 

 Mr. Caesar, visited the neighboring orchards, especially the peach 

 orchards. Fortunately the peaches were just ready to pick, and 

 the healthy trees, with their luxuriant green foliage and the branches 

 bending down almost to the breaking point with the weight of 

 golden fruit, aroused the enthusiasm and admiration of those who 

 had ne^•er before seen an Ontario peach orchard. About two 

 hours were spent driving through or past peach and other orchards, 

 noting at the same time a few of the special insect pests of the 

 locality, and then all returned to the hotel to meet the party of 

 collectors who reported a considerable number of interesting cap- 

 tures. Farewells were given and the con\-ention was at an end. 



L. C. 



