. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; Diptères; Insectes. TllOCllOBOLA. 99 Museum); Trenton Falls, N. Y. ; Maine (Packard) ; Massa- cliiisotts (Scudtler); Orangr, X. Y. Tills spt'cies is soniuwhat variable in its size, the intensity of the culiiriiig, and tl»o distinctness of tlie spots on (he winjrs. 1 jMisscss a specimen from Fort Simpson, II. IJ. T. (Kennieott), which is allof^'etinT brownish ; tlie thorax is brown, somewhat yellowish sericeous above, without any ajujarent stripes ; halterc
. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; Diptères; Insectes. TllOCllOBOLA. 99 Museum); Trenton Falls, N. Y. ; Maine (Packard) ; Massa- cliiisotts (Scudtler); Orangr, X. Y. Tills spt'cies is soniuwhat variable in its size, the intensity of the culiiriiig, and tl»o distinctness of tlie spots on (he winjrs. 1 jMisscss a specimen from Fort Simpson, II. IJ. T. (Kennieott), which is allof^'etinT brownish ; tlie thorax is brown, somewhat yellowish sericeous above, without any ajujarent stripes ; haltercs l)ro\vnisii, pale at \hv basis only; the ocellate spots on the; winj^s are tlie same as usual, but much darker and soniewhat broader, tims imparting p darker coloring to the whole wing. The Euro- pean T. annulula Lin. (impcriaiiif Loew, Liini. Entom. V, p. 7(t;J, Tab. II, fig. 14-15) is hardly more distinct from T. argus, than some of the varieties of the latter are one from another. A closer observation will have to teach us what to make of these modifications of the sam^' typical form. I- 'I. â¢; § > A. i" * ... " t''! -. _ m. f. -X-.â :,â â â A :|-/;;.ri3. 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 Osten-Sacken, C. R. (Carl Robert), 1828-1906. Washington : The Institution
Size: 1362px × 1834px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectd, booksubjectinsects
