. Animal parasites and parasitic diseases. Domestic animals; Veterinary medicine. PARASITOLOGY. 27 body heavy, and covered with soft, yellowish hair. The eyes are small. The female is provided with a long ovipositor. The posterior of the male is rounded. Life Cycle.—The eggs are oval in shape, light yel- low in color, and are cemented to the hair of the animal attacked, principally in the region of the jaws and fore limbs. The fly hovers over the region on which the ^^^ is to be deposited, then darts down, cements it to the hair in an instant, retreats a few feet, hovers again, then deposits a
. Animal parasites and parasitic diseases. Domestic animals; Veterinary medicine. PARASITOLOGY. 27 body heavy, and covered with soft, yellowish hair. The eyes are small. The female is provided with a long ovipositor. The posterior of the male is rounded. Life Cycle.—The eggs are oval in shape, light yel- low in color, and are cemented to the hair of the animal attacked, principally in the region of the jaws and fore limbs. The fly hovers over the region on which the ^^^ is to be deposited, then darts down, cements it to the hair in an instant, retreats a few feet, hovers again, then deposits another &^z- The cap or operculum is pushed off the large end, through which the young grub escapes when the &^q, is hatched. The eggs hatch in three weeks. The animal, by lick- ing, gets the larva into its mouth; the larva finds its way to the stomach, attaches it- self to the pyloric portion by means of two booklets (small hooks) and remains there ten months. Upon reaching the fully developed larval state it loosens its hold, passes out to the ground with the feces, burrows into the ground one inch and there passes through the pupal stage, which lasts from four to six weeks. Animal Attacked.—The horse. Part Infested.—The stomach. Injury to Host.—Seldom if ever any Fig. 4—Gastrophilus Equi Larva. a, Dorsal View. b, Ventral View. Gastrophilus Hemorrhoidalis (Gaster—stomach) (Phileo—to love). Syno7iyms.—Oestrus hemorrhoidalis ; red-tailed bot-fly; bot-fly of 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 Kaupp, B. F. (Benjamin Franklyn), 1874-. Chicago, A. Eger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdomesti, bookyear1910
