. Parasites and parasitosis of the domestic animals : the zoo?logy and control of the animal parasites and the pathogenesis and treatment of parasitic diseases . Domestic animals. 44 PARASITES OF THE DOMESTIC ANIMALS four to forty-eight hours. It is necessary, therefore, to regularly repeat the application if the animals are to be continuously protected. Re- pelling agents are best applied in the evening when cattle are stabled or yarded. Tsetse Flies Genus Glossina.—Muscidae (p. 37). The tsetse flies (Fig. 24) are about the size of house flies, or may be somewhat larger. The general color is
. Parasites and parasitosis of the domestic animals : the zoo?logy and control of the animal parasites and the pathogenesis and treatment of parasitic diseases . Domestic animals. 44 PARASITES OF THE DOMESTIC ANIMALS four to forty-eight hours. It is necessary, therefore, to regularly repeat the application if the animals are to be continuously protected. Re- pelling agents are best applied in the evening when cattle are stabled or yarded. Tsetse Flies Genus Glossina.—Muscidae (p. 37). The tsetse flies (Fig. 24) are about the size of house flies, or may be somewhat larger. The general color is light brown. When at rest the proboscis projects in front of the head. At the base of the proboscis is a bulbous enlargement, arista. Fig. 24.—Tsetse fly. plumose above. The resting wings are folded scissors-like over the back. These flies are found only in certain areas in Africa. Glossina Palpalis.—Glossina (p. 44). This species is 8 to 9 mm. (5/16 to 3/8 of an inch) in length. The color is brown dusted with gray. The antennae are black. All segments in the hind tarsi are black. The fourth and fifth segments of the fore tarsi are black. The halteres are white. Glossina Morsitans.—Glossina (p. 44). About the same size and color &8 G. palpalis. The antermae are dark. The first three segments of the hind tarsi are yellow, the fourth and fifth segments black. The fourth and fifth segments of the first and second pairs of tarsi are black. Glossina longipalpis is a species which in characteristics and distribu- tion is almost identical with G. morsitans. Breeding Habits and Habitat.—The Glossina deposit hatched larvae among roots of tropical vegetation. When deposited the larvae are well. 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 Underhill, Benjamin Mott. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdomesti, bookyear1920
