Plecoptera Nymphs of America (North of Mexico) By Claassen, Peter W. Books / Hardcover Nature › Animals Publisher: Charles C. Thomas, January 1931 Price $50.10 Free Shipping Send to a friend Collectible - Acceptable Springfield, IL and Baltimore, MD: Charles C. Thomas, 1931. 8vo. 199pp. Illus. Book Good. No dust jacket. Bookplate inside. Writing inside. (entomology, insects, stoneflies) Inquire if you need further information. $50.10 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.