CHAPTER XXIX. 

 INSECTS INJURIOUS TO DOMESTIC ANIMALS AND POULTRY 



Several of the insects listed as pests of man are also annoying 

 or injurious to domestic animals. Among these the most import- 

 ant are the mosquitoes. House flies, although present in large 

 number where there are animals, do not cause injury of a direct 

 nature and do not annoy the animals particularly since they are 

 unable to bite. The Stable Fly . 



The stable fly resembles very closely the house fly, the most easily 

 noticeable difference being in the mouth parts, as shown in Fig. 546. 



The habits of the stable fly are quite similar to those of the 

 house fly also. The eggs are laid on straw or other material and 

 the larvae develop on decaying vegetation of many kinds, usually 

 in manure which contains a large amount of straw or in scattered 

 or wet and decaying straw from the bottoms of stacks. 



The adults bite, attacking many domestic animals, and are 

 frequently the most annoying 

 and numerous of the flies to 

 be found on animals, usually 

 being so in stables. 



Stable fly control is se- 

 cured in the same way as 

 house fly control, by eliminat- 

 ing, so far as possible, the 



^^ rJanw nnH hv tran FIG. 578. The stable fly i Adult female, 

 breeding places and by trap- side view, engorged with blood. Greatly 

 ping the adult flies. The enlarged. (After Bishopp, U. S. Dept. 

 same means to accomplish of Agr ^ 



these ends are used as in case of the house fly, taking into account 

 the slight differences in the breeding places. A fly eradication cam- 

 paign should make no difference in the species but destroy all flies 

 possible. Control measures may be supplemented by protection 

 of animals. This may be done by screening windows of stables 



* Stomoxys calcitrans L. Family Musddce. See F. C. Bishopp, Farmers' 

 Bulletin 540. 



657 



