. Elementary entomology. Entomology. 2 34 ELEMENTARY ENTOMOLOGY whose maggots work in the nasal sinuses of sheep, causing " grub- in-the-head," which often results in fatal vertigo, or "; Other species affect various wild mammals, one inhabiting rabbits being particularly common in the South. When full grown, the bots pass out with the excreta, or drop to the ground, in which they pupate. The muscids. The last group of the typical flies is much the largest and is now held by most students of this order to represent from twenty to thirty families, so that it may be
. Elementary entomology. Entomology. 2 34 ELEMENTARY ENTOMOLOGY whose maggots work in the nasal sinuses of sheep, causing " grub- in-the-head," which often results in fatal vertigo, or "; Other species affect various wild mammals, one inhabiting rabbits being particularly common in the South. When full grown, the bots pass out with the excreta, or drop to the ground, in which they pupate. The muscids. The last group of the typical flies is much the largest and is now held by most students of this order to represent from twenty to thirty families, so that it may be considered as a superfamily. They are all com- monly called muscids (superfamily Muscina) and the house-fly is the best-known example. No attempt will be made to give the technical distinctions by which the different families or subfamilies may be distinguished, for the knowledge of an expert is required for their recognition ; but the different groups will be considered according. The ox bot-fly {Hypoden liiieata) (After Marlatt, United States Department of Agriculture). 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 Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882; Metcalf Collection (North Carolina State University). NCRS. Boston, Ginn
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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912
