Rhipidocerus weiri sp. nov. is described from the Northern Queensland (Australia). The new species differs from the type species, Rhipidocerus australasiae Westwood, 1842 by its much larger eyes with upper lobes very narrowly separated dorsally.

A new species of Autocrates J. Thomson, 1860 is described and illustrated from the well-known biodiversity refugium of Dayaoshan Mountains in Guangxi Province, SE China. The new species, Autocrates lini sp. nov., appears closely related to A. vitalisi Vuillet, 1912. The type of A. vitalisi was studied, illustrated and is here re-described. An updated and supplemented species key to Autocrates is provided.

The following new taxonomic changes in nine tribes of Ephydridae are proposed: status at species level: Ditrichophora amoena (Duda, 1942); 2 resurrections from synonymy: Ptilomyia madeirensis Stuke, 2012, bona species, and P. orsovana (Enderlein, 1922), bona species; 10 new combinations: Allotrichoma communis (Malloch, 1934), comb. nov., Athyroglossa bettelai (Canzoneri, 1995), comb. nov., Ceropsilopa africana (Canzoneri & Meneghini, 1969), comb. nov., Ceropsilopa flavescens (Frey, 1958), comb. nov., Diclasiopa affinis (Tonnoir & Malloch, 1926), comb. nov., Diclasiopa flavitarsis (Tonnoir & Malloch, 1926), comb. nov., Diclasiopa senegalensis (Canzoneri, 1981), comb. nov., Ditrichophora amoena (Duda, 1942), comb. nov., Hoploaegis albitarsis (Canzoneri & Rampini, 1998), comb. nov., and Placopsidella opacula (Thomson, 1869), comb. nov.; 32 new synonyms: Allotrichoma giordanii Canzoneri, 1981 = A. incertum Frey, 1958 = A. biroi Cresson, 1929; Athyroglossa flavicoxa Stuke, 2012 = A. rossii (Canzoneri & Raffone, 1987); Ceropsilopa fisseli (Canzoneri, 1981) = C. flavescens (Frey, 1958); Ditrichophora bezzii (Canzoneri & Meneghini, 1975) = D. amoena (Duda, 1942); D. canzonerii Rampini, 1980 = D. olivacea (Becker, 1896); D. fusca Miyagi, 1977 = D. griseifacies (Canzoneri, 1976) = D. palliditarsis Becker, 1896; D. nectens (Collin, 1942) = D. moraviae (Becker, 1926); D. graeca (Canzoneri & Meneghini, 1985) = D. rampinii (Canzoneri & Meneghini, 1975); Eutaenionotum olivaceum Oldenberg, 1923 = E. guttipennis (Stenhammar, 1844); Gymnoclasiopa tirolensis (Canzoneri & Rallo, 1979) = G. aurivillii (Becker, 1896) = G. nigerrima (Strobl, 1893); G. dimidiatipennis (Strobl, 1893) = G. coxalis (Strobl, 1893); Hecamedoides paradoxus Canzoneri & Raffone, 1987 = H dahli Miyagi, 1977 = H. infantinus (Becker, 1924); Hyadina borkumensis Stuke, 2020 = H. minima (Papp, 1975); Hydrellia geniculata flavitarsis (Stenhammar, 1844) = H. geniculata (Stenhammar, 1844); H. litoralis Miyagi, 1977 = H. gentilis Dahl, 1968; H. asymmetrica Papp, 1983 = H. sera Cresson, 1932 = H. stratiotae Hering, 1925; H. pseudofusca Raffone, 2015 = H. albifrons (Fallén); H. riparia Raffone, 2014 = H. fusca (Stenhammar 1844); H. pratensis Raffone, 2015 = H. veneta Raffone, 2015 = H. incana (Stenhammar 1844) = H. incana obscurata (Stenhammar, 1844) = H. maura Meigen, 1838 = H. albiceps (Meigen, 1824); H. saharae Giordani Soika, 1956 = H. maculiventris Becker, 1896; Philygria doczkali Stuke, 2021 = Ph. tirolis (Cresson, 1930); Ptilomyia africana (Cresson, 1943) = P. kairensis (Becker, 1903); P. angustigenis (Becker, 1926) = P. orsovana (Enderlein, 1922). Two replacement names are suggested in Ephydridae: Allotrichoma cratquam, new name for Notiphila nigripes Macquart, 1851, preoccupied by Waltl, 1837 and Zetterstedt, 1838, also Lamproscatella zhyazha, new name for L. minuta Zhou, Yang & Zhang, 2013, preoccupied by Krivosheina, 2004; one in Drosophilidae: Phortica mallochi new name is proposed for Phortica annulata Malloch, 1923, not Loew, 1845. Three species are synonymized with taxa in Drosophilidae: Hydrellia alboguttata Loew, 1845 = Amiota alboguttata (Wahlberg, 1839), Hydrellia annulata Loew, 1845 = Phortica variegata (Fallen, 1823), Hydrellia flavipes Macquart, 1835 = Scaptomyza graminum (Fallén, 1823); one species is moved to Heleomyzidae: Notiphila alboclavata Bigot, 1888 = Prosopanthrum diadematum (Bigot, 1888), and one to Milichiidae: Gymnopa opaca Rondani, 1869 = Desmometopa m-nigrum (Zetterstedt, 1848).

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.