Elementary entomology ([c1912]) Elementary entomology elementaryentomo00sand Year: [c1912] teenth of an inch long, which is found clinging FIG. 382. Sheep-tick {Melophagus ovimis) FIG. 383. Bee-louse (Braula caeca) and its larva. (Greatly enlarged) to the thorax of queen and drone bees. FLEAS (SIPHONAPTERA) The fleas may be considered in con- nection with the flies, for they were formerly thought to be wingless Dip- tera, but are now classed as a distinct order. The name of the order is de- rived from two Greek words, siphon (a tube) and aptcros (wingless), referring to the tubelike mouth-

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Elementary entomology ([c1912]) Elementary entomology elementaryentomo00sand Year: [c1912] teenth of an inch long, which is found clinging FIG. 382. Sheep-tick {Melophagus ovimis) FIG. 383. Bee-louse (Braula caeca) and its larva. (Greatly enlarged) to the thorax of queen and drone bees. FLEAS (SIPHONAPTERA) The fleas may be considered in con- nection with the flies, for they were formerly thought to be wingless Dip- tera, but are now classed as a distinct order. The name of the order is de- rived from two Greek words, siphon (a tube) and aptcros (wingless), referring to the tubelike mouth-parts and the lack of wings. The fleas have an oval body which is very strongly compressed laterally, enabling them to pass through narrow cracks. They are usually of a brown color, with small heads bearing sucking or piercing mouth-parts, and

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