. Elementary entomology. Entomology. Fig. 382. Sheep-tick {Melophagus ovinus). 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, sipJwn (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 suckin

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. Elementary entomology. Entomology. Fig. 382. Sheep-tick {Melophagus ovinus). 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, sipJwn (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 Fig. 383. Bee-louse [Braula caeca) and its larva. (Greatly- enlarged). 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 work.. Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882; Metcalf Collection (North Carolina State University). NCRS. Boston, Ginn