Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 343 with metallic yellow or brown. The female only has the blood- sucking habit, the males feeding usually upon pollen, and being, therefore, rarely noticed, except by the collector. The larvae are elongated, somewhat flattened creatures, some living in the soil, some in water, and some in marshes, preying upon what- ever comes in their way. In this stage they might possibly be Fig. 392. iJL 6 Horse-fly, Tabamts atratus.—a, larva.; d, pupa; c, adult. re
Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 THE INSECT WORLD. 343 with metallic yellow or brown. The female only has the blood- sucking habit, the males feeding usually upon pollen, and being, therefore, rarely noticed, except by the collector. The larvae are elongated, somewhat flattened creatures, some living in the soil, some in water, and some in marshes, preying upon what- ever comes in their way. In this stage they might possibly be Fig. 392. iJL 6 Horse-fly, Tabamts atratus.—a, larva.; d, pupa; c, adult. reckoned of some benefit, did they inhabit places frequented by injurious insects ; but at best they are harmless,—unlike their parents in this as in all other respects. Horses driven through districts badly infested by these insects should be furnished with a netting, and, if it is necessary to keep the animals for any time exposed to attack, the fish oil and car- bolic acid mixture already recommended can be used to repel the flies. It need be applied only in such places as the animal cannot conveniently reach with its tail, or which is not sheltered by a netting. Somewhat resembling 'horse-flies' in appearance are the members of the family Stratiomyiidce, or 'soldier-flies,' so called because of their often bright bandings of green and yellow. They have the same general shape but rather longer antennae, with broader, much more flattened, abdomen. They are not troublesome in any stage, and are referred to simply because of
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