. Bulletin - United States National Museum. Science. BULLETIN 39, UNITED STATES NATIONAL MUSEUM. [20]. —The Sheep Bot (CEstrvs ovis). 1, 2, flies; 3, pupariuni; 4, 5, and 6, larvae or bots. or less completely connected witli, the hardened and shrnnken skin of the larva. "The most anomalous of the Diptera are the Forest-tlies and Sheep- ticks {Hippohoscidw). They have a horny and flattened body, and resemble lice in their parasitic habits, living beneath the hair of bats and birds. Their mode of development has always attracted the atten- tion of entomologists. The larvse are hatche
. Bulletin - United States National Museum. Science. BULLETIN 39, UNITED STATES NATIONAL MUSEUM. [20]. —The Sheep Bot (CEstrvs ovis). 1, 2, flies; 3, pupariuni; 4, 5, and 6, larvae or bots. or less completely connected witli, the hardened and shrnnken skin of the larva. "The most anomalous of the Diptera are the Forest-tlies and Sheep- ticks {Hippohoscidw). They have a horny and flattened body, and resemble lice in their parasitic habits, living beneath the hair of bats and birds. Their mode of development has always attracted the atten- tion of entomologists. The larvse are hatched in the abodmen of the female, which is capable of disten- tion. There it remains and, after assuming the pupa state, is dexjos- ited in the form of a short, white, egg-like object, without trace of ar- ticulation, and nearly as large as the abdomen of the female fly. Closely allied to these are the Bat- ticks (Nyeterihida'), which possess neither wings nor balancers, and remind one strongly of spiders. "In this order we may also x)lace certain wingless lice (such as Braula caeca, Mtzsch), which infests the Honey-bee in Europe, northern Africa, and western Asia, but which has not yet been detected in this country. "Suborder Aphaniptbra {awavvjg, inconspicuous; Trrepov, wing) or Fleas, comprising the sin- gle family Pulicidae, now placed with the Diptera. Everybody is supposed to be familiar with the ap- pearance of the Flea—its bloodthirsty propensities and amazing muscular power; and while every- one may not have the leisure and means to ex- perience the exhilarating influence of the chase after larger animals, there is no one—be he never so humble—who may not indulge in the hunt after this smaller game! In place of wings the flea has four small, scaly plates. The minute eggs—about a dozen to each female—are laid in obscure places, such as the cracks of a floor, the hair of rugs, etc., and the larva is worm- like and feeds upon whatever animal matter—a
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
