. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. n2 DII'TKllA OP NORTH flAKT. â 'i m jointed iirista has nii npicul or a siihapical jiositictn. lly|M(pv;;'niiii iinlicdclcd, distinctly hairy ; its outer apiteiidafres liave a liinielli- forni strncturo and are usually t'onet'aled. Feet rather short and comparatively stron;r. The lirst joint of the liind tarsi witinMit, bristles. Winers in eonijiarison ratluM' hroad and very rounded iit the tip; tho small transverse vein in most of the speeies very tar distant from the marjfiii of the win


. Monographs of the Diptera of North America [microform]. Diptera; Insects; Diptères; Insectes. n2 DII'TKllA OP NORTH flAKT. â 'i m jointed iirista has nii npicul or a siihapical jiositictn. lly|M(pv;;'niiii iinlicdclcd, distinctly hairy ; its outer apiteiidafres liave a liinielli- forni strncturo and are usually t'onet'aled. Feet rather short and comparatively stron;r. The lirst joint of the liind tarsi witinMit, bristles. Winers in eonijiarison ratluM' hroad and very rounded iit the tip; tho small transverse vein in most of the speeies very tar distant from the marjfiii of the win^r; the last sefrment of the fourth loiiffitudinul vein straij,dit, parallel or almost parallel to the third lon/«- phoriis, and (J. abdominalis is j)robably a (JJinjKotinnis. In the place Mr. ^Slaccpmrt has described a female as Chr[/Koliitt ci rill ife morn ; if face and front are covered with white dust, as it seems to follow from his descrii)tion, this character and the color of the feet may perhaps help to recognize the species. Finally, Mr. Walker has, in his usual careless nnmner, i)ul)lished a Chrij- Kotus incertuH, which probably will remain incniiis forever; as he has not even stated the sex of the specimen described, his descrip- tion is of no use whatever. I know, tlius far, twelve North American species of Chrysotus, of which live are represented in both sexes, three only in the male, and four in the female sex; two of the latter offer but so little l>eculiar characteristics, that I hesitate with their publication, while the two others are striking enough to preclude the possi- bility of a 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 Loew, H. (Hermann), 1807-1879; Osten-Sacken, C. R. (Carl Robert), 1828-1906. Washington : The Institution


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectinsects, bookyear1864