Melolonthidae Leach, 1817
Maechidius aenescens Heller, 1910
Maechidius algonus Britton, 1957
Maechidius amanus Britton, 1957
Maechidius angusticeps Arrow, 1941
Maechidius antennalis Blackburn, 1898
Maechidius aroae Heller, 1914
Maechidius arrowi Frey, 1969
Maechidius ater Waterhouse, 1875
Maechidius atratus Burmeister, 1855
Maechidius brevis Waterhouse, 1875
Maechidius caesius Britton, 1957
Maechidius calabyi Britton, 1957
Maechidius capitalis Blackburn, 1907
Maechidius caviceps Blackburn, 1888
Maechidius cavus Britton, 1957
Maechidius chadwicki Britton, 1957
Maechidius charaxus Britton, 1957
Maechidius clypealis Blackburn, 1894
Maechidius coelus Britton, 1957
Maechidius conspicuus Lea, 1917
Maechidius corrosus Waterhouse, 1875
Maechidius crassifrons Britton, 1957
Maechidius crenaticollis Blackburn, 1888
Maechidius davidsoni Britton, 1957
Maechidius emarginatus Waterhouse, 1875
Maechidius esau Heller, 1914
Maechidius eutermiphilus Lea, 1924
Maechidius excisicollis Blackburn, 1898
Maechidius excisus Waterhouse, 1875
Maechidius fissiceps MacLeay, 1888
Maechidius fraterculus Moser, 1920
Maechidius froggati MacLeay, 1888
Maechidius froggatti Macleay, 1888
Maechidius geminus Britton, 1957
Maechidius gibbicollis Blackburn, 1898
Maechidius gressitti Frey, 1969
Maechidius hackeri Lea, 1919
Maechidius hirtipes Arrow, 1941
Maechidius hopeanus Westwood, 1842
Maechidius hopianus Westwood, 1842
Maechidius hoplocephalus Lea, 1917
Maechidius humeralis Heller, 1914
Maechidius insularis Lea, 1917
Maechidius interruptocarinatus Heller, 1914
Maechidius jobiensis Moser, 1920
Maechidius kanallus Britton, 1957
Maechidius kiwanus Britton, 1957
Maechidius konandus Britton, 1957
Maechidius kurantus Britton, 1957
Maechidius lateripennis Lea, 1917
Maechidius latus Waterhouse, 1875
Maechidius lineatopunctatus Frey, 1969
Maechidius lobaticeps Frey, 1969
Maechidius longitarsus Waterhouse, 1875
Maechidius macleayanus Westwood
Maechidius macleaynus Westwood, 1845
Maechidius major Blackburn, 1888
Maechidius mellianus Westwood, 1842
Maechidius mellyanus Westwood, 1842
Maechidius metellus Britton, 1957
Maechidius milkappus Britton, 1957
Maechidius milneanus Heller, 1914
Maechidius modicus Blackburn, 1898
Maechidius moluccanus Moser, 1920
Maechidius muticus Arrow, 1941
Maechidius nanus Arrow, 1941
Maechidius occidentalis Britton, 1957
Maechidius olor Britton, 1957
Maechidius ordensis Blackburn, 1898
Maechidius papuanus Moser, 1926
Maechidius parallelicollis Moser, 1920
Maechidius parandus Britton, 1957
Maechidius parvulus MacLeay, 1871
Maechidius paupianus Heller, 1910
Maechidius pauxillus Heller, 1910
Maechidius pedarioides Arrow, 1941
Maechidius pellus Britton, 1957
Maechidius pilosus Blackburn, 1898
Maechidius proximus Britton, 1957
Maechidius puncticollis Lea, 1924
Maechidius pygidialis Britton, 1957
Maechidius raucus Blackburn, 1907
Maechidius relictus Blackburn, 1907
Maechidius rufus Westwood, 1841
Maechidius rugicollis Moser, 1920
Maechidius rugosicollis MacLeay, 1871
Maechidius rugosipes Blackburn, 1888
Maechidius savagei Lea, 1917
Maechidius sculptipennis Lea, 1917
Maechidius seriepunctatus Moser, 1920
Maechidius serigranosus Heller, 1914
Maechidius serratus Britton, 1957
Maechidius setosellus Frey, 1969
Maechidius setosus Moser, 1920
Maechidius simplex Frey, 1969
Maechidius sordidus Boisduval, 1835
Maechidius spurius (Kirby, 1818)
Maechidius squamipennis Lea, 1917
Maechidius stradbrokensis Lea, 1919
Maechidius sturnus Arrow, 1941
Maechidius subcostatus Heller, 1895
Maechidius tarsalis Arrow, 1941
Maechidius tibialis Blackburn, 1892
Maechidius tridentatus Britton, 1963
Maechidius tumidifrons Britton, 1957
Maechidius variolosus MacLeay, 1871
Maechidius vicinus Heller, 1914
Maechidius wilsoni Britton, 1957
Maechidius woodlarkianus Heller, 1914