. Bulletin - United States National Museum. Science. COLLECTING AND PKKSKKVINC INSECTS-—BANKS. 31 there are two such pieces, the lower one much the Larger, the Calypte- ratae. The Acalypterae includes many families of flies, mostly small and bristly. Some of them, like the ()rt alidae and Trypetidae (fig. 60), have spotted or banded wings. Their lar- vae occur in all sorts of places; some, like the apple maggot and the orange maggot, in fruit; others, like the frit fly, affect grams; others mine the leaves of plants, and many live in manure, or in moist soil. The Calypteratae include the Tachi
. Bulletin - United States National Museum. Science. COLLECTING AND PKKSKKVINC INSECTS-—BANKS. 31 there are two such pieces, the lower one much the Larger, the Calypte- ratae. The Acalypterae includes many families of flies, mostly small and bristly. Some of them, like the ()rt alidae and Trypetidae (fig. 60), have spotted or banded wings. Their lar- vae occur in all sorts of places; some, like the apple maggot and the orange maggot, in fruit; others, like the frit fly, affect grams; others mine the leaves of plants, and many live in manure, or in moist soil. The Calypteratae include the Tachina (figs. 61, 157) and Sarcophaga flies, with a bristly abdomen, the larvae of which usu- ally are parasitic in other insects. The Anthomyidae are smaller, and their larvae often attack vegetables. The cabbage maggot belongs to this family. The (Es- tridae (bot or warble flies) (fig. 62) are hairy speeies whose larvae live in various animals, sometimes in man. The true Muscidae (fig. 63) include the hornfly, blowfly, house fly, stable fly, screw-worm fly (fig. 142), etc. Many of them are injurious to man or animals. The African tsetse flies are responsible for the Nagana disease of cattle, and the sleeping sickness of man. The ubiquitous house fly is one of the most dangerous insects, since it is known to assist in the spread. Fig. 61.—A Tachina fly, Archytas Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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