On Certain Entomological Speculations of the New England ...
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(Eur. and N. A.) Walker. f — Empidee. Empis borealis Lin. (Eur. and Greenl.) 0. Fabr. — Hemerodromia precatoria Meig. (Eur. and H. B. T.) Walker. — Drapetis nigra Meig. (Eur. and H. B. T.) Walker. — Syrphici. Chrysotoxum fasciolatum DeG.