viii, [2], 522 pp. Illustrated with 32 color plates of various flies, plus text engravings and plates after photographs; frontispiece; tissue-guards. 9¼x7, two-tone green cloth, stamped and lettered in gilt, top edge gilt. Third Edition.

Includes an alphabetical list of contributors. Later printing, but else apparently identical to the first edition, first printing as described in Bruns. Bruns M 40.