1906 . ENTOMOLOGICAL SOCIETY. 129 



We have m New Zealand, as far as we knew, three kinds of humblebees, the 

 descendants of those imported in 1885, viz., Bombus terrestris, Bombus hortorum, and 

 Bombus hortorum variety Uavrisellus. Bombus terrestris is the most numerous and 

 is, I believe, considered quite unsuitable on account of the shortness of its proboscis. 



My Association would deem it a great favor if you could forward me any inform- 

 ation you may have gathered as to what bees or insects you have in Canada most suit- 

 able for the fertilization of the red clover. 



Forty-eight specimens of bumblebees were collected from the flowers 

 of the red clover. The specimens were sent to Dr. McGillivray, Cornell 

 University, and identified. Three species were found — Bombus fervidus, 

 Bombus ternarius and Bornbus borealis. 



Dr. Brodie, of Toronto Normal School, reports Bombus consimilis as 

 being one of the more common species around Toronto. 



Dr. Fletcher stated that Bombus fervid'us is the most common species 

 at Ottawa, while B. borealis is rare. 



INJUEIOUS INSECTS OF 1905 IN ONTARIO. 

 By W. Lochhead, Ontario Agricultural College, Guelph. 



The number of injurious insects in the season of 1905 was about the 

 normal, but the amount of damage done to crops of all kinds was perhaps 

 below the normal, — there being no outstanding case of very serious loss. 



The Pea-weevil no longer gives anxiety to the growers of peas, but in 

 this apparent security from this pest lies the danger for the future. The 

 farmer just now is able to give practically a death-blow to pea-weevils for 

 many a year if he would insist on sowing only peas that have been fumi- 

 gated with carbon bisulphide. It is an easy task to conquer and control an 

 enemy when it is weak; and this is the present condition of the pea-weevil. 

 If this precaution of using fumigated seed is not taken, the weevils will 

 increase every year until they are beyond control. 



A species of Joint-worm, (see Fig. 29), probably Isosoma hordei, was pre- 

 sent in a few localities on wheat and barley, but did very little damage. It 

 produces galls at, usually, the second joint of the stems, which are co-ise- 

 quently deformed and weakened. Within the galls are the minute yellowish- 

 white maggots with blackish jaws. The larvae usually remain over vinler 

 i^vilnin the galls, and the adults, small black four-winged flies, emerge in the 

 spring. Fortunately there is only one brood each year. 



It is doubtful if this Joint-worm will ever become a serious enemy in 

 Ontario, where the majority of farmers practise a system of regular rotation 

 of crops, and where the roadside and fence corner grasses are cut at the 

 time of haying. 



The Horn-Fly (Hsematobia serrata), was more prevalent over the Pro- 

 vince this past season than it has been for several seasons. Although this 

 insect is now well known by nearly all farmers, yet it is remarkable how 

 few stock-owners apply the simple treatments that have been advocated for 

 years by the practical entomologists. This fly, it is well known, is one of 

 the most annoying and troublesome pests of cattle in summer, and young 

 cattle in good pasture are frequently annoyed to such an extent that they 

 lose rather than gain flesh. Milch cows, too suffer much from these flies, 

 and the supply of milk is always very much reduced in quantity during the 

 "fly" season. 



The life-history of the Horn-fly is well known. The eggs are deposited 

 in fresh cow droppings, where the maggots develop and the pupae form. 



9 EN. 



