The robber-flies of America north of Mexico, belonging to the subfamilies Leptogastrinae and Dasypogoninae Back, E. A. (Ernest Adna), 1880-1959 creator text book [Philadelphia American Entomological Society] 1909 1909
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ENG Caption title. Running title : American Diptera. Diptera North America Robber flies QL537.A85 B3 Transactions of the American Entomological Society (1890), v. 35 https://www.biodiversitylibrary.org/bibliography/9381 8677585 10.5962/bhl.title.9381 AFU