EN
The Australian Dicranolaius fauna is revised based on 79 described species (30 of them are new). The revision is mainly based on males as they only provide good diagnostic characters for species recognition. The following new species are described: Dicranolaius acacia sp. nov., D. alice sp. nov., D. anic sp. nov., D. archer sp. nov., D. balah sp. nov., D. bogan sp. nov., D. brittoni sp. nov., D. cardaleae sp. nov., D. chinchilla sp. nov., D. confusus sp. nov., D. crypticus sp. nov., D. desertus sp. nov., D. eromanga sp. nov., D. hudsoni sp. nov., D. kildurk sp. nov., D. kimberley sp. nov., D. kinchega sp. nov., D. micrus sp. nov., D. moffatt sp. nov., D. monteithi sp. nov., D. pilbara sp. nov., D. proserpine sp. nov., D. pulleni sp. nov., D. quorn sp. nov., D. reidi sp. nov., D. rockhampton sp. nov., D. spinifex sp. nov., D. thylungra sp. nov., D. uptoni sp. nov., D. zborowskii sp. nov. The following new combinations are proposed: D. ammophilus (Lea, 1917) (Laius), comb, nov., D. distortus (Blackburn, 1888) (Laius), comb, nov., D. egenus (Lea, 1899) (Laius), comb, nov., D. eremita (Blackburn, 1895) (Laius), comb, nov., D. eyrensis (Blackburn, 1892) {Laius), comb, nov., D. guttulatus (Fairmaire, 1877) (Laius), comb, nov., D. melanoderes (Lea, 1917) (Laius), comb, nov., D. minutus (Lea, 1914) (Laius), comb. no\., D.purpureiceps (Lea, 1915) (Laius), comb. nov.,Z>. variegatus (Blackburn, 1889) (Laius), comb, nov., D. verticalis (Macleay, 1826) (Laius), comb, nov., Intybia cavicomis (Lea, 1909) (Laius), comb, nov., Intybia hackeri (Lea) (Laius) comb, nov.; Simoderus megalops (Lea) (Laius) comb. nov. The following synonymies are proposed: D. bellulus (Boisduval, 1835) [= D. cyanocephalus (Lea, 1909); = D. intermedius (Lea, 1909); =D. nidicola (Lea, 1909); =D. orcicornis (Lea, 1909)],D. conicicornis (Blackburn, 1888) [= D. rugiceps (Lea, 1899)], D. guttulatus (Fairmaire, 1877) [= D. longus (Lea, 1929)], D. verticalis (Macleay, 1826) [ = D. tarsalis (Lea, 1909)]. The lectotypes of the following species are designated: Laius acervatus Lea, 1917; L. ammophilus Lea, 1917; L. aulacophoroides Lea, 1917; L. c-pupureus Lea, 1914; L. concavifrons Lea, 1917; L. conicicornis Blackburn, 1888; L. curvicornis Lea, 1929; L. cyanocephalus Lea, 1909; L. distortus Blackburn, 1888; L. egenus Lea, 1899; L. eremita Blackburn, 1851; L. eyrensis Blackburn, 1892; L. fimbriceps Lea, 1929; L. flavifrons Lea, 1917; L. flavonotatus Lea, 1917; L. guttulatus Fairmaire, 1877; L. inconstans Lea, 1921; L. intermedius Lea, 1909; L. intricatus Lea, 1921; L. longus Lea, 1929; L. major Blackburn, 1889; L. mastersii Macleay, 1872; L. melanoderes Lea, 1917; L. minutus Lea, 1914; L. nidicola Lea, 1909; L. orcicornis Lea, 1909; L. orthodoxus Lea, 1909; L. pallidus Lea, 1899; L. plagiaticollis Fairmaire, 1877; L. planiceps Lea, 1899; L. purpureiceps Lea, 1915; L. rugiceps Lea, 1899; L. sinus Lea, 1899; L. tarsalis Lea, 1909; L. tetrasticus Lea, 1922; L. trifoveicornis Lea, 1921; L. variegatus Blackburn, 1889; L. villosus Lea, 1899; Malachius verticalis Macleay, 1826. Neotype oiMalachius bellulus Boisduval, 1835 is also designated.