. Synopsis of the North American Syrphidae [microform]. Syrphidae; Diptera; Syrphidés; Diptères. 1. Catabomha pykastri Liiinc^, lu'ad of male, from in front; la, head of femalf. 2. Syki'iius Lksi:ki;iui Macq., wing. 3. Sykphusgkmcl'latus Mac(i., beadofmale. 4. DiDKA O. S., wing; 4«, head of male. 5. Mksoukai'ta (iEMiNATA Say, head of male; oa, hind leg of male. 6. Xantiiogramma .txiUALi: Loew, head of female. 7. Haccha aitiuxota Walker, wing. 8. Racciia i-i'sciPENNis , head of male; Ha, the same, front view. 9. Haccha Haiusta Walk., head of female. 10. Nkoascia Walk., wing;

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. Synopsis of the North American Syrphidae [microform]. Syrphidae; Diptera; Syrphidés; Diptères. 1. Catabomha pykastri Liiinc^, lu'ad of male, from in front; la, head of femalf. 2. Syki'iius Lksi:ki;iui Macq., wing. 3. Sykphusgkmcl'latus Mac(i., beadofmale. 4. DiDKA O. S., wing; 4«, head of male. 5. Mksoukai'ta (iEMiNATA Say, head of male; oa, hind leg of male. 6. Xantiiogramma .txiUALi: Loew, head of female. 7. Haccha aitiuxota Walker, wing. 8. Racciia i-i'sciPENNis , head of male; Ha, the same, front view. 9. Haccha Haiusta Walk., head of female. 10. Nkoascia Walk., wing; lOfj, head of male. 11. Si'iiKciNA Kkkmana Will., wing. 12. Si'iiKciiNA i.\FL-,scATA Loew, wing; 12a, head of male. 13. I'KLKi'OCEKA Pekgkandei Will., male. 14. Chaiaomvia .khi;a Loew, head of male; 14a, head of female. 15. Myiolepta MGitA Loew, head of female. 16. (M{ia cymndrica Say, head of male; 16a, abdomen of 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 Williston, Samuel W. (Samuel Wendell), 1851-1918. Washington : G. P. O.

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Keywords: ., book, bookcentury1800, bookdecade1880, bookpublisherwashingtongpo