1996 827 p., 4to, paperbound. Ex library Dr. J. Krikken (with his small Ex Libris). A very good copy.Part of a series of four basic taxonomical lists of the insects from Canada and Alaska to the Mexican border, including synonyms, misspellings, etc.
1996 791 p., 4to, paperbound.Part of a series of four basic taxonomical lists of the insects from Canada and Alaska to the Mexican border, including synonyms, misspellings, etc. A clean "as new" copy.