Mecaphesa es un género de arañas cangrejo de la familia Thomisidae.

En septiembre de 2009 contiene 49 especies y tres subespecies en Norteamérica, América Central, el Caribe, Sudamérica y Hawái: - Mecaphesa aikoae (Schick, 1965) - Mecaphesa anguliventris (Simon, 1900) - Mecaphesa arida (Suman, 1971) - Mecaphesa asperata (Hentz, 1847) - Mecaphesa baltea (Suman, 1971) - Mecaphesa bubulcus (Suman, 1971) - Mecaphesa californica (Banks, 1896) - Mecaphesa carletonica (Dondale & Redner, 1976) - Mecaphesa cavata (Suman, 1971) - Mecaphesa celer (Hentz, 1847) - Mecaphesa celer olivacea (Franganillo, 1930) - Mecaphesa celer punctata (Franganillo, 1926) - Mecaphesa cincta Simon, 1900 - Mecaphesa coloradensis (Gertsch, 1933) - Mecaphesa damnosa (Keyserling, 1880) - Mecaphesa decora (Banks, 1898) - Mecaphesa deserti (Schick, 1965) - Mecaphesa devia (Gertsch, 1939) - Mecaphesa discreta (Suman, 1971) - Mecaphesa dubia (Keyserling, 1880) - Mecaphesa edita (Suman, 1971) - Mecaphesa facunda (Suman, 1971) - Mecaphesa gabrielensis (Schick, 1965) - Mecaphesa gertschi (Kraus, 1955) - Mecaphesa hiatus (Suman, 1971) - Mecaphesa imbricata (Suman, 1971) - Mecaphesa importuna (Keyserling, 1881) - Mecaphesa importuna belkini (Schick, 1965) - Mecaphesa inclusa (Banks, 1902) - Mecaphesa insulana (Keyserling, 1890) - Mecaphesa juncta (Suman, 1971) - Mecaphesa kanakana (Karsch, 1880) - Mecaphesa lepida (Thorell, 1877) - Mecaphesa lowriei (Schick, 1970) - Mecaphesa naevigera (Simon, 1900) - Mecaphesa nigrofrenata (Simon, 1900) - Mecaphesa oreades (Simon, 1900) - Mecaphesa perkinsi Simon, 1904 - Mecaphesa persimilis (Kraus, 1955) - Mecaphesa prosper (O. Pickard-Cambridge, 1896) - Mecaphesa quercina (Schick, 1965) - Mecaphesa reddelli Baert, 2013 - Mecaphesa revillagigedoensis (Jiménez, 1991) - Mecaphesa rothi (Schick, 1965) - Mecaphesa rufithorax (Simon, 1904) - Mecaphesa schlingeri (Schick, 1965) - Mecaphesa semispinosa Simon, 1900 - Mecaphesa sierrensis (Schick, 1965) - Mecaphesa sjostedti (Berland, 1924) - Mecaphesa spiralis (F. O. Pickard-Cambridge, 1900) - Mecaphesa velata (Simon, 1900) - Mecaphesa verityi (Schick, 1965)

- Simon, E. (1900), "Arachnida", in Sharp, D. (ed.), Fauna Hawaiiensis, or the zoology of the Sandwich Isles: being results of the explorations instituted by the Royal Society of London promoting natural knowledge and the British Association for the Advancement of Science, 2.