Pp. (iv), 1553. Original brown cloth in simulated leather style, gilt-lettered on the spines and front covers and with elaborate gilt decoration of a beetle on the front covers, lg 8vo. Great Basin Naturalist Memoirs, number 19. A complete taxonomic catalog of the Scolytidae covering all 225 genera and 5,812 species, and the Platypodidae with 32 genera and 1,463 species. Lonf out of print and quite rare. No ownership marks.