Author: Kelsey, L.P., 1969.:
Title: A revision of the Scenopinidae (Diptera) of the World. [Bull. U.S. Natl. Mus., 277.]
Description: Washington. 8vo, 23.3cm. Pp. vi,336, very numerous drawings in 208 figs., refs., index. Orig. wrappers, uncut. Fine.

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