Erotilídeos (Erotylidae) é uma família de coleópteros que contém mais de 100 géneros. Na actual circunscrição, inclui as anteriormente independentes famílias Cryptophilidae, Languriidae, Loberidae, Pharaxonothidae e Xenoscelidae como subfamílias. Por outras palavras, a estreitamente circunscrita Erotylidae corresponde à subfamília Erotylinae em sensu lato.

Alimentam-se de matéria vegetal e fúngica. Alguns são importantes polinizadores, enquanto que outros ganharam notoriedade como pragas de alguma significância. Por vezes, espécies úteis e prejudiciais são encontradas num único género, como por exemplo em Pharaxonotha. Mas a maioria são animais inofensivos de pequena significância para os humanos.

Géneros seleccionados: 
These 160 genera belong to the family Erotylidae:

• Acropteroxys Gorham, 1887 ^{i c g b}
• Acryptophagus
• Aegithus Fabricius, 1801 ^g
• Amblyopus Lacordaire, 1842 ^g
• Amblyscelis Gorham, 1888
• Anadastus Gorham, 1887 ^g
• Apolybas Alvarenga, 1965 ^g
• Atomarops Reitter
• Aulacochilus Lacordaire, 1842
• Bacis Dejean, 1836 ^g
• Barytopus Chevrolat, 1836 ^g
• Bolerus Grouvelle
• Brachypterosa Zablotny & Leschen, 1996
• Brachysphaenus
• Caenolanguria Gorham, 1887 ^g
• Callischyrus
• Camptocarpus
• Cathartocryptus Sharp, 1886 ^{i c g}
• Chinophagus Ljubarsky, 1997
• Cladoxena Motschulsky
• Cnecosa
• Coccimorphus Hope, 1841
• Coelocryptus Sharp, 1900
• Combocerus Bedel, 1868 ^g
• Coptengis Crotch, 1876
• Crotchia Fowler
• Crowsenguptus
• Cryptodacne Sharp, 1878 ^g
• Cryptophilus Reitter, 1874 ^{i c g b}
• Cycadophila Xu, Tang & Skelley, 2015 ^g
• Cypherotylus Crotch, 1873
• Cyrtomorphus Lacordaire, 1842 ^g
• Cytorea
• Dacne Latrielle, 1796
• Dactylotritoma Arrow, 1925 ^g
• Dapsa
• Dasydactylus Gorham, 1887 ^{i c g b}
• Doubledaya White, 1850 ^g
• Ectrapezidera
• Ellipticus Chevrolat, 1836 ^g
• Empocryptus Sharp
• Encaustes Lacordaire, 1842 ^g
• Epilanguria Fowler, 1908 ^g
• Episcapha Dejean, 1837
• Episcaphula Crotch
• Erotylina Curran, 1944 ^g
• Erotylus Fabricius, 1775
• Eutriplax Lewis, 1887
• Fitoa
• Goniolanguria
• Haematochiton Gorham, 1888 ^{i c g b}
• Hapalips Reitter, 1877 ^{i c g b}
• Henoticonus Reitter, 1878
• Hirsotriplax
• Hirsutotriplax Skelley, 1993 ^{i c g b}
• Homoeotelus Hope, 1841
• Hoplepiscapha Lea, 1922
• Hornerotylus ^g
• Iphiclus Chevrolat, 1836 ^g
• Ischyrus Lacordaire, 1842 ^{i c g b}
• Languria Latreille, 1802 ^{i c g b}
• Languriomorpha
• Langurites Motschulsky, 1860 ^{i c g b}
• Lepidotoramus Leschen, 1997 ^{i c g}
• Leucohimatium Rosenhauer, 1856
• Ligurana Chûjô, 1974 ^g
• Linodesmus Bedel, 1882
• Loberogosmus Reitter
• Loberolus
• Loberonotha Sen Gupta and Crowson, 1969 ^{i c g}
• Loberopsyllus
• Loberoschema Reitter
• Loberus LeConte, 1861 ^{i c g b}
• Lobosternum Reitter, 1875 ^{i c g}
• Lybanodes
• Lybas Lacordaire, 1842 ^g
• Macromelea Hope
• Macrophagus Motschulsky
• Malleolanguria
• Megalodacne Crotch, 1873 ^{i c g b}
• Megischyrus Crotch, 1873 ^g
• Meristobelus
• Micrencaustes Crotch, 1875 ^g
• Microlanguria Lewis
• Microsternus Lewis, 1887 ^{i c g b}
• Mimodacne
• Mycetaea Stephens, 1829
• Mycolybas Crotch, 1876
• Mycophtorus Lacordaire, 1842 ^g
• Mycotretus Lacordaire, 1842 ^{i c g b}
• Neocladoxena Maeda, 1974 ^g
• Neodacne Chûjô, 1976 ^g
• Neoloberolus Leschen, 2003 ^{i c g}
• Neopriotelus Alvarenga, 1965 ^g
• Neosternus Dai & Zhao, 2013 ^g
• Neotriplax
• Neoxestus Crotch, 1875 ^g
• Nomotus
• Oligocorynus Chevrolat, 1836 ^g
• Oretylus Heller, 1920 ^g
• Ortholanguria
• Othniocryptus Sharp, 1900
• Pachylanguria Crotch, 1875 ^g
• Paederolanguria Mader, 1939 ^g
• Paphezia Zablotny & Leschen, 1996
• Paracladoxena Fowler
• Paraxonotha ^g
• Pediacus
• Penolanguria Kolbe
• Pharaxonotha Reitter, 1875 ^{i c g b}
• Phricobacis Crotch, 1876 ^g
• Platoberus Sharp
• Prepopharus Erichson, 1847 ^g
• Promecolanguria
• Protoloberus Leschen, 2003 ^{i c g}
• Pselaphacus Percheron, 1835 ^g
• Pselaphandra Jacobson, 1904
• Pseudhapalips Champion
• Pseudhenoticus Sharp
• Pseudischyrus Casey, 1916 ^{i c g b}
• Pseudotritoma Gorham, 1888 ^g
• Rhodotritoma Arrow, 1925 ^g
• Scaphengis Gorham, 1888 ^g
• Scaphidomorphus Hope, 1841 ^g
• Scaphodacne Heller, 1918
• Scelidopetalon Delkeskamp, 1957 ^g
• Setariola Jakobson, 1915 ^g
• Sphenoxus Lacordaire, 1842 ^g
• Spondotriplax Crotch, 1875 ^g
• Stengita
• Stenodina
• Strongylosomus Chevrolat, 1836 ^g
• Tapinotarsus Kirsch, 1865 ^g
• Telmatoscius* Teretilanguria
• Tetralanguria Crotch, 1875 ^g
• Tetraphala ^g
• Tetratritoma Arrow, 1925 ^g
• Thallis
• Thallisella Crotch
• Thallisellodes Arrow, 1925 ^g
• Tomarops Grouvelle, 1903
• Toramus Grouvelle, 1916 ^{i c g b}
• Trapezidera
• Trapezidistes Fowler, 1887 ^g
• Trichotritoma
• Trichulus
• Triplacidea Gorham, 1901
• Triplax Herbst, 1793 ^{i c g b}
• Tritoma Fabricius, 1775 ^{i c g b}
• Truquiella ^b
• Typocephalus Chevrolat, 1837 ^g
• Xenocryptus Arrow, 1929
• Xenohimatium Lyubarsky & Perkovsky, 2012 ^g
• Xenoscelinus Grouvelle, 1910 ^g
• Xenoscelis Wollaston, 1864 ^g
• Xestus Wollaston, 1864 ^g
• Zavaljus Reitter, 1880 ^g* Acropteroxys Gorham, 1887
• Zonarius (= Oligocorynus)
• Zythonia Westwood, 1874

Fontes de dados: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net