. Elementary entomology. Entomology. FLIES, MOSQUrrOKS, AND MIDOKS 239 they may well be regarded with suspicion. One species occasionally attacks the roots of corn, and another, the beet leaf-miner, makes tortuous mines in beet leaves. The fruit-flies (Trypetidae) burrow in the flesh of fruits and in the stems of plants. The common round gall on the golden-rod is caused by the maggot of one of this group, most of which are medium-sized flies, often metallic in color and usually with strik- ingly banded or mottled wings. In New England the common apple-maggot {RJiagolctis povioucUa), or "r
. Elementary entomology. Entomology. FLIES, MOSQUrrOKS, AND MIDOKS 239 they may well be regarded with suspicion. One species occasionally attacks the roots of corn, and another, the beet leaf-miner, makes tortuous mines in beet leaves. The fruit-flies (Trypetidae) burrow in the flesh of fruits and in the stems of plants. The common round gall on the golden-rod is caused by the maggot of one of this group, most of which are medium-sized flies, often metallic in color and usually with strik- ingly banded or mottled wings. In New England the common apple-maggot {RJiagolctis povioucUa), or "railroad worm," which. Fig. 3S0. A pomace-fly [Divsophila anipelophila). (Enlarged) (7, adult; b, antenna of same ; c, base of tibia and first tarsal segment; d^ c, puparium from side and above; /, larva; g, anal spiracles of same. (After Howard, United States Department of Agriculture) bores through the flesh of the apples, is a well-known example, the adult being black and white with black-banded wings. In Mexico a similar species infests the orange and is occasionally imported into this country. The little pomace-flies {Drosophila sp.), small, yellowish flies about one eighth of an inch long, are common about cider mills and wherever there is decaying fruit, in which their maggots develop. II. PUPIPARA This suborder includes three parasitic families, with but few species, so named on account of the peculiar mode of reproduction. The eggs and larvae are developed within the body of the female and are given birth when mature and all ready to 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
