ENTOMOLOGICAL SOCIETY OF ONTARIO. 



33 



III. — Remedies. 



1. Natural enemies, a. Birds. Many investigations have been carried on to learn 

 what insectivorous birds are useful in assisting man to keep in check his insect foes. 



Thousands of birds have been shot, and the contents of their 

 stomachs examined so as to ascertain with accuracy if the insects 

 eaten were injurious. In some cases as many beneficial insects 

 were devoured as harmful. The result of careful examina- 

 tion into the subject has been to consider the birds named in the 

 following list as benefactors to the farmer, the fruit grower, and 

 the gardener, and should, as far as possible, be protected and 

 permitted to increase in number : — 



King bird, pewee, night-hawk, swallow, whip poor-will, 

 American redstart, yellow-billed cuckoo, blue bird, white-bellied 

 nuthatch, red-headed woodpecker, high-holder, hairy woodpecker, 

 downy woodpecker, golden warbler, red eyed greenlet, yellow- 

 throated greenlet, Wilson's thrush, brown thrush, cat bird, red- 

 winged blackbird, crow blackbird, oriole, meadow lark, indigo 

 bird, song sparrow, grass finch, chipping sparrow, chewink, purple finch, snow-bird, 

 American goldfinch, horned lark, wren, chickadee, golden-crowned kinglet ruby-crowned 

 kinglet, and American creeper, 



(b) Mammals. Moles, bats, shrews, racoons and skunks. (See Mr. Elliott's paper 

 on Insectivorous Mammals,) 



(c) Insects. Among the most beneficial insects we find the following in the different 

 orders : 



Fig. 29. 



Fig. 31. Fig. 33. 



Order Diptera. — Syrphus fly {Figs. 30 and 31); Tachina fly. 



0. Goleoptera. — Oicindela (tiger beetles) (Fig. 32) ; Oalosoma (Fig. 33) ; Harpalus 

 (Fig. 34) (ground beetles) ; Coccinella (ladybirds) (Figs. 35 and 36). 



Fig. 37. 

 Fig. 36. 



0. Hemiptera — Reduvius, Arma (soldier bugs) (Fig. 37). 

 O. Neuroptera. — Chrjsopa (laced-winged flies) (Fig. 38). 

 3 EN. 



Fig. 38. 



