Mecyclothorax is a genus of beetles that contains over 400 described species or subspecies, mostly from the Hawaiian Islands,[1][2][3][4] and Tahiti[5] and Moorea,[6] French Polynesia. Additional radiations have evolved in Queensland, Australia,[7] New Guinea[8] and New Caledonia.[9] The genus has been divided into five subgenera: Eucyclothorax Liebherr 2018 of Australia, Qecyclothorax Liebherr 2018 of Queensland, Australia, Meonochilus Liebherr & Marris, 2009 of New Zealand, Phacothorax Jeannel 1944 of New Caledonia, and the more widely distributed subgenus Mecyclothorax Sharp 1903 [in Australia, the Sundas, New Zealand, the Society Islands (Moorea and Tahiti), and Hawaii]. The adelphotaxon to Mecyclothorax is hypothesized to consist of the genera associated with Amblytelus Blackburn, also distributed in Australia, and therefore the evolutionary history of Mecyclothorax commenced in Australia.
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These 415 species belong to Mecyclothorax.[2]
- Mecyclothorax aa Liebherr, 2008
- Mecyclothorax aano Liebherr, 2013 (Tahiti)
- Mecyclothorax abax Liebherr, 2006
- Mecyclothorax acutangulus Perrault, 1988 (Tahiti)
- Mecyclothorax aeneipennis Liebherr, 2005
- Mecyclothorax aeneus Sharp, 1903 (Oceania)
- Mecyclothorax affinis Liebherr, 2015 (Hawaii)
- Mecyclothorax ahulili Liebherr, 2015 (Hawaii)
- Mecyclothorax allostriatus Liebherr, 2011 (Hawaii)
- Mecyclothorax altiusculoides Perrault, 1987 (Tahiti)
- Mecyclothorax altiusculus (Britton, 1938) (Tahiti)
- Mecyclothorax amaroides Sharp, 1903 (Oceania)
- Mecyclothorax ambiguus (Erichson, 1842) (New Zealand and Australia)
- Mecyclothorax ambulatus Liebherr, 2015 (Hawaii)
- Mecyclothorax amingwiwae Liebherr, 2017 (New Guinea and Papua)
- Mecyclothorax amplipennis (Broun, 1912) (New Zealand)
- Mecyclothorax anaana Liebherr, 2012 (Tahiti)
- Mecyclothorax anchisteus Liebherr, 2015 (Hawaii)
- Mecyclothorax andersoni Liebherr, 2017 (New Guinea and Papua)
- Mecyclothorax angulosus Perrault, 1989 (Tahiti)
- Mecyclothorax angusticollis (Blackburn, 1878) (Oceania)
- Mecyclothorax annae Liebherr, 2006
- Mecyclothorax antaeus Liebherr, 2015 (Hawaii)
- Mecyclothorax anthracinus Liebherr, 2015 (Hawaii)
- Mecyclothorax aorai Perrault, 1978 (Tahiti)
- Mecyclothorax apicalis (Sharp, 1903) (Oceania)
- Mecyclothorax aquilus Liebherr, 2015 (Hawaii)
- Mecyclothorax arboricola Liebherr, 2013 (Tahiti)
- Mecyclothorax arcanus Liebherr, 2011 (Hawaii)
- Mecyclothorax arcuatus Liebherr, 2006
- Mecyclothorax argutor (Sharp, 1903) (Oceania)
- Mecyclothorax argutuloides Liebherr, 2015 (Hawaii)
- Mecyclothorax argutulus Liebherr, 2015 (Hawaii)
- Mecyclothorax arthuri Liebherr, 2015 (Hawaii)
- Mecyclothorax ata Perrault, 1978 (Tahiti)
- Mecyclothorax ataraensis Perrault, 1989 (Tahiti)
- Mecyclothorax ater Britton, 1948 (Oceania)
- Mecyclothorax bacrionis Liebherr, 2015 (Hawaii)
- Mecyclothorax badius Liebherr, 2011 (Hawaii)
- Mecyclothorax baehri B.Gueorguiev, 2013 (New Guinea and Papua)
- Mecyclothorax balli Perrault, 1978 (Tahiti)
- Mecyclothorax ballioides Perrault, 1978 (Tahiti)
- Mecyclothorax bartletti Liebherr, 2011 (Hawaii)
- Mecyclothorax basipunctus Louwerens, 1953 (Indonesia)
- Mecyclothorax bellorum (Liebherr, 2011) (New Zealand)
- Mecyclothorax bembidicus Sharp, 1903 (Oceania)
- Mecyclothorax bembidioides (Blackburn, 1879) (Oceania)
- Mecyclothorax bicolor Sharp, 1903 (Oceania)
- Mecyclothorax bicoloratus Liebherr, 2015 (Hawaii)
- Mecyclothorax bicoloris Liebherr, 2015 (Hawaii)
- Mecyclothorax bilaianus Baehr, 1998 (Indonesia and New Guinea)
- Mecyclothorax bilobatus Liebherr, 2015 (Hawaii)
- Mecyclothorax blackburni (Sloane, 1898) (Australia)
- Mecyclothorax blackburnianus Liebherr, 2008
- Mecyclothorax bougainvillei Perrault, 1986 (Tahiti)
- Mecyclothorax bradycellinus Sharp, 1903 (Oceania)
- Mecyclothorax bradycelloides Liebherr, 2015 (Hawaii)
- Mecyclothorax bradyderus (Sharp, 1903) (Oceania)
- Mecyclothorax brevidux Liebherr, 2015 (Hawaii)
- Mecyclothorax brevipennis Perrault, 1984 (Tahiti)
- Mecyclothorax brevis (Blackburn, 1878) (Oceania)
- Mecyclothorax brispex Liebherr, 2017 (New Guinea and Papua)
- Mecyclothorax brittoni Perrault, 1978 (Tahiti)
- Mecyclothorax bryobioides Perrault, 1987 (Tahiti)
- Mecyclothorax bryobius (Britton, 1938) (Tahiti)
- Mecyclothorax carteri (Perkins, 1917) (Oceania)
- Mecyclothorax castaneus Perrault, 1986 (Tahiti)
- Mecyclothorax ceteratus Liebherr, 2011 (Hawaii)
- Mecyclothorax chalcosus (Sharp, 1903) (Oceania and Hawaii)
- Mecyclothorax claridgeiae Liebherr, 2013 (Tahiti)
- Mecyclothorax clermontianus Liebherr, 2011 (Hawaii)
- Mecyclothorax cognatus Sharp, 1903 (Oceania)
- Mecyclothorax comma Liebherr, 2006
- Mecyclothorax consanguineus Liebherr, 2015 (Hawaii)
- Mecyclothorax consobrinus Liebherr, 2005
- Mecyclothorax constrictus (Sharp, 1903) (Oceania and Tahiti)
- Mecyclothorax contractus Liebherr, 2015 (Hawaii)
- Mecyclothorax convexicollis (Emden, 1937) (Indonesia)
- Mecyclothorax convexus Liebherr, 2006
- Mecyclothorax cooki Perrault, 1986 (Tahiti)
- Mecyclothorax cordaticollaris Liebherr, 2015 (Hawaii)
- Mecyclothorax cordaticollis (Blackburn, 1878) (Oceania)
- Mecyclothorax cordicollis (Sloane, 1900) (Australia)
- Mecyclothorax cordithorax Liebherr, 2005
- Mecyclothorax crassuloides Liebherr, 2015 (Hawaii)
- Mecyclothorax crassulus Liebherr, 2015 (Hawaii)
- Mecyclothorax crassus (Sharp, 1903) (Oceania and Hawaii)
- Mecyclothorax cuccodoroi Baehr, 2002 (New Guinea and Papua)
- Mecyclothorax cupreoides Perrault, 1978 (Tahiti)
- Mecyclothorax cupreus Perrault, 1978 (Tahiti)
- Mecyclothorax cupripennis Perrault, 1989 (Tahiti)
- Mecyclothorax curtipes (Sharp, 1903) (Oceania)
- Mecyclothorax curtisi Liebherr, 2013 (Tahiti)
- Mecyclothorax curtus (Sloane, 1895) (Australia)
- Mecyclothorax cymindicus Sharp, 1903 (Oceania)
- Mecyclothorax cymindoides Liebherr, 2006
- Mecyclothorax cymindulus Liebherr, 2015 (Hawaii)
- Mecyclothorax dannieae Perrault, 1978 (Tahiti)
- Mecyclothorax daptinus Sharp, 1903 (Oceania)
- Mecyclothorax darlingtoni Liebherr, 2018 (Australia)
- Mecyclothorax debiliceps Liebherr, 2006
- Mecyclothorax debilis (Sharp, 1903) (Oceania)
- Mecyclothorax deverilli (Blackburn, 1879) (Oceania)
- Mecyclothorax discedens (Sharp, 1903) (Oceania)
- Mecyclothorax dispar Liebherr, 2015 (Hawaii)
- Mecyclothorax doesburgi Louwerens, 1949 (Indonesia)
- Mecyclothorax ducalis (Sharp, 1903) (Oceania)
- Mecyclothorax dunbarorum Liebherr, 2006
- Mecyclothorax ehu Liebherr, 2013 (Tahiti)
- Mecyclothorax eipomeki Baehr, 1995 (Indonesia and New Guinea)
- Mecyclothorax eliti Baehr, 1995 (Indonesia and New Guinea)
- Mecyclothorax eplicatus (Broun, 1923) (New Zealand)
- Mecyclothorax everardi Liebherr, 2013 (Tahiti)
- Mecyclothorax ewingi Liebherr, 2006
- Mecyclothorax excavatus Liebherr, 2011 (Hawaii)
- Mecyclothorax exilioides Liebherr, 2011 (Hawaii)
- Mecyclothorax exilis Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax externestriatus Perrault, 1989 (Tahiti)
- Mecyclothorax eyrensis (Blackburn, 1892) (Australia)
- Mecyclothorax fairmairei Perrault, 1986 (Tahiti)
- Mecyclothorax fatata Liebherr, 2012 (Tahiti)
- Mecyclothorax fefemata Liebherr, 2013 (Tahiti)
- Mecyclothorax ferovipennis Liebherr, 2011 (Hawaii)
- Mecyclothorax ferruginosus Perrault, 1987 (Tahiti)
- Mecyclothorax filipes (Sharp, 1903) (Oceania)
- Mecyclothorax filipoides Liebherr, 2015 (Hawaii)
- Mecyclothorax filitarsis Liebherr, 2011 (Hawaii)
- Mecyclothorax flaviventris Liebherr, 2015 (Hawaii)
- Mecyclothorax flavolateralis Liebherr, 2006
- Mecyclothorax flavomarginatus Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax fleutiauxi (Jeannel, 1944) (New Caledonia)
- Mecyclothorax footei Liebherr, 2008
- Mecyclothorax fosbergi Perrault, 1979 (Tahiti)
- Mecyclothorax fosbergioides Perrault, 1988 (Tahiti)
- Mecyclothorax foveolatus Liebherr, 2015 (Hawaii)
- Mecyclothorax foveopunctatus Liebherr, 2015 (Hawaii)
- Mecyclothorax funebris Liebherr, 2008
- Mecyclothorax fuscus Perrault, 1989 (Tahiti)
- Mecyclothorax gagnei Liebherr, 2008
- Mecyclothorax geminatus Liebherr, 2011 (Hawaii)
- Mecyclothorax georgettae Perrault, 1978 (Tahiti)
- Mecyclothorax gerardi Perrault, 1978 (Tahiti)
- Mecyclothorax giffardi Liebherr, 2005
- Mecyclothorax giffini Liebherr, 2008
- Mecyclothorax globicollis (Mandl, 1969) (Borneo and Indonesia)
- Mecyclothorax globosoides Perrault, 1989 (Tahiti)
- Mecyclothorax globosus Britton, 1948 (Tahiti)
- Mecyclothorax globulosus Perrault, 1978 (Tahiti)
- Mecyclothorax gourvesi Perrault, 1978 (Tahiti)
- Mecyclothorax gourvesioides Perrault, 1988 (Tahiti)
- Mecyclothorax goweri B.Moore, 1992
- Mecyclothorax gracilicollis Liebherr, 2015 (Hawaii)
- Mecyclothorax gracilis (Sharp, 1903) (Oceania)
- Mecyclothorax granulatus Liebherr, 2006
- Mecyclothorax granulipennis Liebherr, 2008
- Mecyclothorax gressitti Liebherr, 2017 (New Guinea and Papua)
- Mecyclothorax haleakalae (Sharp, 1903) (Oceania)
- Mecyclothorax hamatus Perrault, 1987 (Tahiti)
- Mecyclothorax haydeni Liebherr, 2015 (Hawaii)
- Mecyclothorax hemisphaericus Perrault, 1989 (Tahiti)
- Mecyclothorax hephaestoides Liebherr, 2015 (Hawaii)
- Mecyclothorax hephaestus Liebherr, 2008
- Mecyclothorax hoeahiti Liebherr, 2013 (Tahiti)
- Mecyclothorax howei B.Moore, 1992
- Mecyclothorax hunapopoti Liebherr, 2013 (Tahiti)
- Mecyclothorax impressipennis Baehr, 2003 (Australia)
- Mecyclothorax improcerus Liebherr, 2011 (Hawaii)
- Mecyclothorax impunctatus Liebherr, 2006
- Mecyclothorax inaequalis (Blackburn, 1878) (Oceania)
- Mecyclothorax incompositus Britton, 1948 (Oceania)
- Mecyclothorax inconscriptus Liebherr, 2015 (Hawaii)
- Mecyclothorax inflatus Baehr, 2003 (Australia)
- Mecyclothorax insolitus (Sharp, 1903) (Oceania)
- Mecyclothorax integer Sharp, 1903 (Hawaii)
- Mecyclothorax interruptus Sharp, 1903 (Oceania and Hawaii)
- Mecyclothorax invisitatus Liebherr, 2015 (Hawaii)
- Mecyclothorax irregularis Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax isolatus Liebherr, 2018 (Australia)
- Mecyclothorax iteratus Sharp, 1903 (Oceania)
- Mecyclothorax jameswalkeri Liebherr, 2018 (Australia)
- Mecyclothorax jarrigei Perrault, 1978 (Tahiti)
- Mecyclothorax jeanneli Liebherr, 2018 (New Caledonia)
- Mecyclothorax jeanyvesi Liebherr, 2013 (Tahiti)
- Mecyclothorax jiwikae Baehr, 1995 (Indonesia and New Guinea)
- Mecyclothorax joni Liebherr, 2006
- Mecyclothorax julianae Baehr, 1995 (Indonesia and New Guinea)
- Mecyclothorax kahalawaiae Liebherr, 2011 (Hawaii)
- Mecyclothorax kanak B.Moore & Liebherr, 2018 (New Caledonia)
- Mecyclothorax karschi (Blackburn, 1882) (Oceania)
- Mecyclothorax kaukukini Liebherr, 2008
- Mecyclothorax kaumakani Liebherr, 2015 (Hawaii)
- Mecyclothorax kavanaughi Liebherr, 2008 (New Guinea and Papua)
- Mecyclothorax kayballae Liebherr, 2013 (Tahiti)
- Mecyclothorax kipahulu Liebherr, 2015 (Hawaii)
- Mecyclothorax kipwilli Liebherr, 2015 (Hawaii)
- Mecyclothorax kokone Liebherr, 2013 (Tahiti)
- Mecyclothorax konanus Sharp, 1903 (Oceania)
- Mecyclothorax konemata Liebherr, 2013 (Tahiti)
- Mecyclothorax krushelnyckyi Liebherr, 2015 (Hawaii)
- Mecyclothorax kubor Baehr, 2008 (New Guinea and Papua)
- Mecyclothorax kuiki Liebherr, 2015 (Hawaii)
- Mecyclothorax lackneri Baehr, 2008 (Indonesia and New Guinea)
- Mecyclothorax laetus (Blackburn, 1881) (Oceania)
- Mecyclothorax laevilateralis Perrault, 1989 (Tahiti)
- Mecyclothorax lahainae Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax langdae Baehr, 1995 (Indonesia and New Guinea)
- Mecyclothorax lateralis (Laporte, 1867) (Australia)
- Mecyclothorax laterobustus Liebherr, 2018 (New Caledonia)
- Mecyclothorax laterorectus Liebherr, 2018 (New Caledonia)
- Mecyclothorax laterosinuatus Liebherr, 2018 (New Caledonia)
- Mecyclothorax laterovatulus Liebherr, 2018 (New Caledonia)
- Mecyclothorax latissimus Liebherr, 2006
- Mecyclothorax latus Liebherr, 2006
- Mecyclothorax lewisensis B.Moore, 1984 (Australia)
- Mecyclothorax lisae Liebherr, 2006
- Mecyclothorax lissopterus Liebherr, 2006
- Mecyclothorax lissus (Andrewes, 1933) (Indonesia)
- Mecyclothorax loebli Baehr, 2002 (New Guinea and Papua)
- Mecyclothorax longidux Liebherr, 2015 (Hawaii)
- Mecyclothorax longulus Sharp, 1903 (Oceania)
- Mecyclothorax lophoides (Chaudoir, 1854) (Australia)
- Mecyclothorax lyratus Liebherr, 2011 (Hawaii)
- Mecyclothorax macrops (Sharp, 1903) (Oceania)
- Mecyclothorax mahatahi Liebherr, 2012 (Tahiti)
- Mecyclothorax mahina Perrault, 1984 (Tahiti)
- Mecyclothorax major Liebherr, 2015 (Hawaii)
- Mecyclothorax manautei Liebherr, 2018 (New Caledonia)
- Mecyclothorax manducus Liebherr, 2015 (Hawaii)
- Mecyclothorax manina Liebherr, 2013 (Tahiti)
- Mecyclothorax maninamata Liebherr, 2013 (Tahiti)
- Mecyclothorax maninapopoti Liebherr, 2013 (Tahiti)
- Mecyclothorax mapo Liebherr, 2012 (Tahiti)
- Mecyclothorax mapura Perrault, 1984 (Tahiti)
- Mecyclothorax marau Perrault, 1978 (Tahiti)
- Mecyclothorax marginatus Perrault, 1978 (Tahiti)
- Mecyclothorax mauiae Liebherr, 2015 (Hawaii)
- Mecyclothorax maunakukini Liebherr, 2008
- Mecyclothorax medeirosi Liebherr, 2015 (Hawaii)
- Mecyclothorax medioconstrictus Liebherr, 2017 (New Guinea and Papua)
- Mecyclothorax megalovatulus Liebherr, 2018 (New Caledonia)
- Mecyclothorax menemene Liebherr, 2012 (Tahiti)
- Mecyclothorax micans (Blackburn, 1878) (Oceania)
- Mecyclothorax microps Sharp, 1903 (Oceania)
- Mecyclothorax minimops Liebherr, 2011 (Hawaii)
- Mecyclothorax minor Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax minutus (Laporte, 1867) (Tahiti and Australia)
- Mecyclothorax molokaiae (Sharp, 1903) (Oceania)
- Mecyclothorax molops (Sharp, 1903) (Oceania)
- Mecyclothorax montanus Liebherr, 2015 (Hawaii)
- Mecyclothorax monteithi B.Moore, 1985 (Australia)
- Mecyclothorax montivagus (Blackburn, 1878) (Oceania)
- Mecyclothorax moorei Baehr, 2009 (Australia)
- Mecyclothorax mordax Liebherr, 2015 (Hawaii)
- Mecyclothorax mordicus Liebherr, 2015 (Hawaii)
- Mecyclothorax mouensis B.Moore & Liebherr, 2018 (New Caledonia)
- Mecyclothorax multipunctatus (Blackburn, 1878) (Oceania)
- Mecyclothorax mundanus (Sharp, 1903) (Oceania)
- Mecyclothorax munroi (Perkins, 1937) (Oceania and Hawaii)
- Mecyclothorax muriauxi Perrault, 1978 (Tahiti)
- Mecyclothorax najtae Deuve, 1987 (New Caledonia)
- Mecyclothorax nanunctus Liebherr, 2015 (Hawaii)
- Mecyclothorax negrei Perrault, 1986 (Tahiti)
- Mecyclothorax niho Liebherr, 2013 (Tahiti)
- Mecyclothorax ninamu Liebherr, 2013 (Tahiti)
- Mecyclothorax nitidus Liebherr, 2008
- Mecyclothorax notobscuricornis Liebherr, 2015 (Hawaii)
- Mecyclothorax nubicola (Blackburn, 1878) (Oceania)
- Mecyclothorax oahuensis (Blackburn, 1878) (Oceania)
- Mecyclothorax oaoa Liebherr, 2013 (Tahiti)
- Mecyclothorax obscuricolor (Blackburn, 1878) (Oceania)
- Mecyclothorax obscuricornis Sharp, 1903 (Oceania)
- Mecyclothorax obscurus Liebherr, 2006
- Mecyclothorax obtuseangulatus Baehr, 2014 (Indonesia and New Guinea)
- Mecyclothorax obtusus Perrault, 1984 (Tahiti)
- Mecyclothorax occultus Sharp, 1903 (Oceania)
- Mecyclothorax octavius Liebherr, 2018 (New Caledonia)
- Mecyclothorax oculatus Sharp, 1903 (Oceania and Hawaii)
- Mecyclothorax oculellus Liebherr, 2015 (Hawaii)
- Mecyclothorax ommatoplax Liebherr, 2015 (Hawaii)
- Mecyclothorax oopteroides Liebherr & Marris, 2009 (New Zealand)
- Mecyclothorax oppenheimeri Liebherr, 2011 (Hawaii)
- Mecyclothorax orbiculus Liebherr, 2015 (Hawaii)
- Mecyclothorax otagoensis Liebherr & Marris, 2009 (New Zealand)
- Mecyclothorax ovalipennis Perrault, 1988 (Tahiti)
- Mecyclothorax ovipennis Sharp, 1903 (Oceania)
- Mecyclothorax paahonu Liebherr, 2013 (Tahiti)
- Mecyclothorax pahere Liebherr, 2012 (Tahiti)
- Mecyclothorax palikea Liebherr & Krushelnycky, 2011 (Hawaii)
- Mecyclothorax pallidus Liebherr, 2011 (Hawaii)
- Mecyclothorax palustris (Sharp, 1903) (Oceania)
- Mecyclothorax palustroides Liebherr, 2015 (Hawaii)
- Mecyclothorax paniensis Liebherr, 2018 (New Caledonia)
- Mecyclothorax papau Liebherr, 2013 (Tahiti)
- Mecyclothorax papuhiti Liebherr, 2013 (Tahiti)
- Mecyclothorax paradoxus (Blackburn, 1879) (Oceania)
- Mecyclothorax paraglobosus Perrault, 1989 (Tahiti)
- Mecyclothorax paraltiusculus Perrault, 1988 (Tahiti)
- Mecyclothorax parapicalis Liebherr, 2015 (Hawaii)
- Mecyclothorax parovalipennis Perrault, 1988 (Tahiti)
- Mecyclothorax parvus Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax patagiatus Liebherr, 2015 (Hawaii)
- Mecyclothorax patulus Liebherr, 2015 (Hawaii)
- Mecyclothorax pau Liebherr, 2015 (Hawaii)
- Mecyclothorax pele (Blackburn, 1879) (Oceania)
- Mecyclothorax perivariipes Liebherr, 2008
- Mecyclothorax perkinsi (Sharp, 1903) (Oceania)
- Mecyclothorax perkinsianus (Sharp, 1903) (Oceania)
- Mecyclothorax perpolitus Perkins, 1917 (Oceania)
- Mecyclothorax perraulti Liebherr, 2012 (Tahiti)
- Mecyclothorax perseveratus Liebherr, 2015 (Hawaii)
- Mecyclothorax perstriatus (Sharp, 1903) (Oceania)
- Mecyclothorax peryphoides (Blackburn, 1889) (Australia)
- Mecyclothorax picdupinsensis Liebherr, 2018 (New Caledonia)
- Mecyclothorax pirihao Liebherr, 2012 (Tahiti)
- Mecyclothorax pitohitiensis Liebherr, 2013 (Tahiti)
- Mecyclothorax placens (Broun, 1880) (New Zealand)
- Mecyclothorax planatus Liebherr, 2015 (Hawaii)
- Mecyclothorax planipennis Liebherr, 2015 (Hawaii)
- Mecyclothorax platops Liebherr, 2011 (Hawaii)
- Mecyclothorax platysminus (Sharp, 1903) (Oceania)
- Mecyclothorax plurisetosus Liebherr, 2018 (New Caledonia)
- Mecyclothorax polhemusi Liebherr, 2006
- Mecyclothorax pomarei Perrault, 1986 (Tahiti)
- Mecyclothorax poouli Liebherr, 2015 (Hawaii)
- Mecyclothorax popotioaoa Liebherr, 2012 (Tahiti)
- Mecyclothorax poria Liebherr, 2013 (Tahiti)
- Mecyclothorax poro Liebherr, 2012 (Tahiti)
- Mecyclothorax profondestriatus Perrault, 1989 (Tahiti)
- Mecyclothorax proximus Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax pseudaltiusculus Perrault, 1988 (Tahiti)
- Mecyclothorax punakukini Liebherr, 2008
- Mecyclothorax punctatostriatus Liebherr, 2006
- Mecyclothorax punctatus (Sloane, 1895) (Australia)
- Mecyclothorax punctipennis (W.J.MacLeay, 1871) (Australia)
- Mecyclothorax purpuripennis Liebherr, 2008
- Mecyclothorax pusillus Sharp, 1903 (Oceania)
- Mecyclothorax putaputa Liebherr, 2012 (Tahiti)
- Mecyclothorax quadraticollis Perrault, 1984 (Tahiti)
- Mecyclothorax quadratus Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax rahimata Liebherr, 2013 (Tahiti)
- Mecyclothorax ramagei Liebherr, 2013 (Tahiti)
- Mecyclothorax rectangulus Louwerens, 1953 (Indonesia)
- Mecyclothorax rectus (Liebherr, 2011) (New Zealand)
- Mecyclothorax refulgens Liebherr, 2015 (Hawaii)
- Mecyclothorax reidi Baehr, 2017 (Indonesia)
- Mecyclothorax reiteratus Liebherr, 2015 (Hawaii)
- Mecyclothorax rex Liebherr, 2015 (Hawaii)
- Mecyclothorax riedeli Baehr, 1992 (Indonesia and New Guinea)
- Mecyclothorax robustus (Blackburn, 1881) (Oceania)
- Mecyclothorax rotundatus Lorenz, 1998
- Mecyclothorax rotundicollis (White, 1846) (New Zealand)
- Mecyclothorax rufipennis Liebherr, 2008
- Mecyclothorax rusticus Sharp, 1903 (Oceania)
- Mecyclothorax sabulicola Britton, 1948 (Tahiti)
- Mecyclothorax sapei Baehr, 1995 (Indonesia and New Guinea)
- Mecyclothorax scapulatus Liebherr, 2011 (Hawaii)
- Mecyclothorax scarites Liebherr, 2015 (Hawaii)
- Mecyclothorax scaritoides (Blackburn, 1878) (Oceania)
- Mecyclothorax sculptonotatus (Enderlein, 1909)
- Mecyclothorax sedlaceki Darlington, 1971 (New Guinea and Papua)
- Mecyclothorax semistriatus Liebherr, 2015 (Hawaii)
- Mecyclothorax sharpi Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax simiolus (Blackburn, 1878) (Oceania)
- Mecyclothorax simpulum Liebherr, 2015 (Hawaii)
- Mecyclothorax sinuatus Perrault, 1988 (Tahiti)
- Mecyclothorax sinuosus Liebherr, 2008
- Mecyclothorax sobrinus Sharp, 1903 (Oceania)
- Mecyclothorax spiculatus (Liebherr, 2011) (New Zealand)
- Mecyclothorax spinosus Perrault, 1989 (Tahiti)
- Mecyclothorax splendidus Liebherr, 2015 (Hawaii)
- Mecyclothorax stenolophinus Liebherr, 2006
- Mecyclothorax storeyi B.Moore, 1984 (Australia)
- Mecyclothorax striatopunctatus Perrault, 1986 (Tahiti)
- Mecyclothorax strigosus Liebherr, 2015 (Hawaii)
- Mecyclothorax subater Liebherr, 2006
- Mecyclothorax subconstrictus (Sharp, 1903) (Oceania)
- Mecyclothorax subquadratus Perrault, 1984 (Tahiti)
- Mecyclothorax subsinuatus Liebherr, 2006
- Mecyclothorax subternus Liebherr, 2015 (Hawaii)
- Mecyclothorax subtilis Liebherr, 2015 (Hawaii)
- Mecyclothorax subunctus (Perkins, 1917) (Oceania)
- Mecyclothorax superstriatus Liebherr, 2005
- Mecyclothorax swezeyi Liebherr, 2008
- Mecyclothorax taatitore Liebherr, 2013 (Tahiti)
- Mecyclothorax tahitiensis Perrault, 1978 (Tahiti)
- Mecyclothorax taiarapu Perrault, 1989 (Tahiti)
- Mecyclothorax takumiae Liebherr, 2015 (Hawaii)
- Mecyclothorax tantalus Britton, 1948 (Oceania and Hawaii)
- Mecyclothorax tauberorum Liebherr, 2015 (Hawaii)
- Mecyclothorax teatara Perrault, 1986 (Tahiti)
- Mecyclothorax terminalis (Sharp, 1903) (Oceania)
- Mecyclothorax tihotii Liebherr, 2012 (Tahiti)
- Mecyclothorax timberlakei Liebherr, 2015 (Hawaii)
- Mecyclothorax timorensis Baehr, 2017 (Indonesia)
- Mecyclothorax toretore Liebherr, 2012 (Tahiti)
- Mecyclothorax toxopei Darlington, 1962 (Indonesia and New Guinea)
- Mecyclothorax trisetifer Liebherr, 2006
- Mecyclothorax tuberculatus Perrault, 1988 (Tahiti)
- Mecyclothorax tuea Liebherr, 2013 (Tahiti)
- Mecyclothorax tutei Liebherr, 2012 (Tahiti)
- Mecyclothorax unctus (Blackburn, 1881)
- Mecyclothorax ustulatus Liebherr, 2011 (Hawaii)
- Mecyclothorax vaifaufa Perrault, 1989 (Tahiti)
- Mecyclothorax variipes (Sharp, 1903) (Oceania)
- Mecyclothorax vicinus Liebherr, 2011 (Hawaii)
- Mecyclothorax villiersi Perrault, 1986 (Tahiti)
- Mecyclothorax viridis Perrault, 1978 (Tahiti)
- Mecyclothorax vitreus Britton, 1948 (Oceania)
- Mecyclothorax vulcanoides Liebherr, 2011 (Hawaii)
- Mecyclothorax vulcanus (Blackburn, 1879) (Oceania)
- Mecyclothorax waikamoi Liebherr, 2015 (Hawaii)
- Mecyclothorax wallisi Perrault, 1986 (Tahiti)
- Mecyclothorax williamsi Liebherr, 2008
- Mecyclothorax xestos Liebherr, 2015 (Hawaii)
- Mecyclothorax zimmermani Perrault, 1978 (Tahiti)
Kipling Will & James K. Liebherr (2022). "Two new species of Mecyclothorax Sharp, 1903 (Coleoptera: Carabidae: Moriomorphini) from the Island of Hawaii". Pan-Pacific Entomologist. 98 (1): 1–17. doi:10.3956/2022-98.1.1. S2CID 247856439. James K. Liebherr (2017). "Review of Mecyclothorax Sharp (Coleoptera: Carabidae: Moriomorphini)from Papua New Guinea with descriptions of five new species". The Coleopterists Bulletin. 71 (4): 679–703. doi:10.1649/0010-065x-71.4.679. S2CID 90143707.
