Mocis is a genus of moths in the family Erebidae. The genus was erected by Jacob Hübner in 1823.

Lepidopterist David Wagner et al. state about the behaviour of Mocis larvae: "Unlike most catocaline larvae, Mocis caterpillars do not wriggle violently when accosted, but rather simply drop to the ground--a habit shared by many grass feeders--where their coloration blends in with dead, withered grass blades."

Species: 

• Mocis alterna (Walker, 1858)
• Mocis ancilla (Warren, 1913)
• Mocis annetta (Butler, 1878) (= M. arabesca)
• Mocis antillesia Hampson, 1913
• Mocis bahamica Hampson, 1913
• Mocis camptogramma Dognin, 1919
• Mocis conveniens (Walker, 1858) (= M. detersa)
• Mocis cubana Hampson, 1913
• Mocis diffluens (Guenée, 1852)
• Mocis diplocyma Hampson, 1913
• Mocis discios Kollar, 1844
• Mocis disseverans (Walker, 1858)
• Mocis dolosa (Butler, 1880) (= M. nigrisigna)
• Mocis dyndima (Stoll, 1782) (= M. dindyma, M. teligera)
• Mocis escondida (Schaus, 1901)
• Mocis frugalis (Fabricius, 1775)
• Mocis guenei (Möschler, 1880)
• Mocis incurvalis Schaus, 1923
• Mocis inferna (Leech, 1900)
• Mocis kagoshimaensis Kishida, 2010
• Mocis latipes (Guenée, 1852) (= M. collata, M. delinquens, M. exscindens, M. indentata, M. subtilis)
• Mocis laxa (Walker, 1858) (= M. pavona)
• Mocis marcida (Guenée, 1852)
• Mocis mayeri (Boisduval, 1833) (= M. associata, M. diffundens, M. inconcisa, M. jugalis, M. pellita, M. subaenescens)
• Mocis mutuaria (Walker, 1858) (= M. insulsa, M. judicans, M. nigrimacula, M. torpida)
• Mocis paraguayica Hampson, 1913
• Mocis persinuosa (Hampson, 1910)
• Mocis phasianoides (Guenee, 1852)
• Mocis propugnata (Leech, 1900)
• Mocis proverai Zilli, 2000
• Mocis ramifera Hampson, 1913
• Mocis repanda (Fabricius, 1794)
• Mocis sobria (Möschler, 1880)
• Mocis texana (Morrison, 1875)
• Mocis trifasciata (Stephens, 1830) (= M. demonstrans, M. discrepans)
• Mocis undata (Fabricius, 1775)
• Mocis undifera Hampson, 1913
• Mocis vitiensis Hampson, 1913
• Mocis xylomiges (Snellen, 1880)

Status unclear: 

• Mocis punctularis, described as Noctua punctularis Hübner, [1808] from Europe.

Former species: 

• Mocis bifasciata (Inoue & Sugi, 1961) (Melapia)
• Mocis munda (Walker, 1865)