Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 OUR FRIENDS AND FOES 147 FIG. 117. A fly, parasitic on grasshoppers. Enlarged. time gives better crop yields. The work of destructive insects is not a total loss, since the part of the crop left will bring1 a price somewhat higher than if the whole crop had been placed upon the market. This is in the case of a general devastation by insects. From this stand- point neither the individual who lost his crop nor the State that lost its crop would be benefittedj but the individ- ual or State th
Elementary studies in insect life Elementary studies in insect life elementarystudie00hunt Year: 1902 OUR FRIENDS AND FOES 147 FIG. 117. A fly, parasitic on grasshoppers. Enlarged. time gives better crop yields. The work of destructive insects is not a total loss, since the part of the crop left will bring1 a price somewhat higher than if the whole crop had been placed upon the market. This is in the case of a general devastation by insects. From this stand- point neither the individual who lost his crop nor the State that lost its crop would be benefittedj but the individ- ual or State that harvested a part or all of the crop would be benefitted by the rise in price caused by its scarcity, this scarcity being due to the work of injurious insects. OF THE HOUSEKEEPER. The House-Fly.—Among insects, probably the one causing most general annoyance to the housekeeper is the house-fly. There are several species which are given this name, but the one most abundant is that known to science as Musca domestica. It is the ordinary grayish fly, with mouth-parts separate at the tip for sucking up liquid substances. It is not within the power of this specie? to pierce the cuticle. There is, however, an opinion prevalent that it can bite. This is not due to any of its actions, but to the resemblance of another fly, sometimes found in the house, a fly known as the This stable-fly is probably next in point of ^Stomoxys calcitrans.
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