Three New Chigger Mites of the Genus Trombicula from Panama, With a Key to the Known Adults of Trombicula of the New World.
Washinton, DC: Smithsonian Institution, 1933. 8vo. 6 pp. Library stamp to front cover, some wrinkling, crease down middle. Natural hsitory of newly-discovered chigger mites. B&w illustrations. Very Good Wraps (Item ID: 20514)