. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Bui. 808, U. S. Dcpt. of Agriculture. PLATE JoiNTWORM Flies of the Genus Harmolita. A, CLaracteristie manner in which U. vaginicola dwarfs wheat plants. These plants rarely form grain. About one-third natural size; B, Head from a plant dwarfed by //. vaginicola with the surroundins; leaf sheath removed, showing the galls in the sheath and not in the stem. Slightly reduced; C, Characteristic galls of //. vaginicola. Note the root like growth at "the base of galls. Slightly reduced; D, Galls of H. captiva in b
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Bui. 808, U. S. Dcpt. of Agriculture. PLATE JoiNTWORM Flies of the Genus Harmolita. A, CLaracteristie manner in which U. vaginicola dwarfs wheat plants. These plants rarely form grain. About one-third natural size; B, Head from a plant dwarfed by //. vaginicola with the surroundins; leaf sheath removed, showing the galls in the sheath and not in the stem. Slightly reduced; C, Characteristic galls of //. vaginicola. Note the root like growth at "the base of galls. Slightly reduced; D, Galls of H. captiva in bluegrass (Poa pratensis). There is little external evidence of the galls. Note that the galls are placed end to end. Slightly 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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