Part 2 of this work includes a review of morphological and systematic work on Histeridae (G07, revision), Bostrichoidea (G15), Coccinelloidea (G16), Lymexyloidea + Tenebrionoidea (G17), Cleroidea (G18), Cucujoidea (G19), Chrysomeloidea (G20) and Curculionoidea (G21), discussions of hind wing structure in each group based on 702 wing images, references to additional published figures and comments on wing morphology and, if possible, how these wing features may or may not be correlated with recent phylogenetic hypotheses. The introduction is followed by brief discussions of some important works not mentioned in Part 1, particularly those dealing with relationships of extinct taxa.