endeavor, an extensive list of literature citations is included’ as are indexes to the 
scientific and common names of the insects and their tree and shrub hosts. Where 
possible, hosts follow the nomenclature of E. L. Little, Jr, “Checklist of United 
States Trees (Native and Naturalized)” (U.S. Department of Agriculture, Agri- 
culture Handbook 541, 1979). A list of corresponding common and scientific 
names of plant hosts is also given. 
' Italic numbers in parentheses refer to Literature Cited. 
