. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; Diptères; Insectes. EMPKDA. 183 vciiti r yellow ; male forcops yellow, with Itlnck horny nppeiKJufres (Tiili IN', lii;. 17). Wiii^ with the cross-veins uiul the inner (â¢nils 1)1'the itasal cells, iind of the second sulinnirf^inn! nnil seciintl |)ii>lerior cells cloniled ; the sti^nuiund the jxirtion of the anterior iiiiii'uin iK'tween it and the tip are blackish ; the pnel'nrca, stronj^ly arcuated at the Imsis is parallel, durinpr the remainder of it


. Monographs of the Diptera of North America [microform] / prepared for the Smithsonian Institution by R. Osten Sacken. Diptera; Insects; Diptères; Insectes. EMPKDA. 183 vciiti r yellow ; male forcops yellow, with Itlnck horny nppeiKJufres (Tiili IN', lii;. 17). Wiii^ with the cross-veins uiul the inner (â¢nils 1)1'the itasal cells, iind of the second sulinnirf^inn! nnil seciintl |)ii>lerior cells cloniled ; the sti^nuiund the jxirtion of the anterior iiiiii'uin iK'tween it and the tip are blackish ; the pnel'nrca, stronj^ly arcuated at the Imsis is parallel, durinpr the remainder of its course, til the lirst lon^ntudinal vein ; the tip of the anterior branch of the fiiTiiiid lonetiolo of tho first submarginal coll, which the cross-vein connects with the first vein ; the cross-vein is thus ])laced between the origin of the third longitudinal vein and the fork of the ,â¢'.â ..i . m â â y'fi- > > )' '' â 1. * m ^* '_, â â ' m â !, r. â¢(#1^ .. i â i' ..â jX- â {â¢' ') â V " t. 'I' 1 â - if' "I -n' M!i'}: I*- r ' . ! â - - ' :ti'. ; ^.a :â â â â -; â â ;â .§. 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


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Keywords: ., bookcentury1800, bookdecade1860, booksubjectd, booksubjectinsects