. Animal parasites and parasitic diseases. Horses; Domestic animals -- Parasites; Veterinary medicine. 26 PARASITOLOGY. Melophagus Ovinus (Alallos—wool, phagein—to eat). Synonyms.—S;heep-tick; louse-fly. Description.—The head is small and sunken in the thorax. It is provided with a tubular-shaped proboscis adapted for piercing the skin and sucking t'he blood. The thorax is distinctly separated from the abdomen, and is provided with three stout pair of legs, which are covered with hair. The last segment of each leg is provided with, a bi-dentated claw. The abdomen is large, and glofoalar in sha
. Animal parasites and parasitic diseases. Horses; Domestic animals -- Parasites; Veterinary medicine. 26 PARASITOLOGY. Melophagus Ovinus (Alallos—wool, phagein—to eat). Synonyms.—S;heep-tick; louse-fly. Description.—The head is small and sunken in the thorax. It is provided with a tubular-shaped proboscis adapted for piercing the skin and sucking t'he blood. The thorax is distinctly separated from the abdomen, and is provided with three stout pair of legs, which are covered with hair. The last segment of each leg is provided with, a bi-dentated claw. The abdomen is large, and glofoalar in shape. Life Cycle.—The female lays eight to ten young in the form of pupae. The pupal case is ovoid in shape and brown in color, and is cemented to a few fibres of wool. These hatch in about four weeks. Animals Infested.—They are found most abundant on long-wooled sheep. After shearing they have a tendency to leave the sheared sheep for the Fig. 2—Melophagus Ovinus. Fi^. 3—Melophagus Ovinus a, Head with Piercing' Rostrum Pupa. b, Thorax, with 3 Pair of Legs. a, Pupa. c, The Large, Globular Abdomen. b. Wool Fibers. They live upon blood of the host, and grease or yolk of the wool. At point of puncture there is injected a small quantity of poison, which causes irritation and swelling. Symptoms.—The infested sheep rubs, scratches and bites itself. When present in large numbers these parasites cause unthriftiness and debility. Treatment.—The sheep dip or kerosene emulsion will kill them. Gastropliilus Equi (Gaster-stomach) (Equi—horse) (Phileo—to Synonyms.—Horse bot-fly; oestrus equi; gad-fly. History.—They were described by the earliest writers and are universally found. Description.—A fly about the size of a honey-bee ;. 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 K
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthorses, bookyear1917
