Thailand

The following valid species and subspecies of ants are known to occur in Thailand. Unidentified and undescribed species will be added to this list as identifications are verified and taxonomic revisions are published. This species list is based upon the effort of many ant collectors as well as myrmecologists who have published on the taxonomy of Thailand ants. Those who have specimen records that expand this list are encouraged to submit this information in the discussion section of the Thailand Ants web page. Please advise if any corrections are warranted.

Acanthomyrmex

 * Acanthomyrmex ferox Emery, 1893
 * Acanthomyrmex malikuli Jaitrong & Asanok, 2019
 * Acanthomyrmex mizunoi Jaitrong & Asanok, 2019
 * Acanthomyrmex thailandensis 	Terayama, 1995

Acropyga

 * Acropyga acutiventris Roger, 1862

Aenictus

 * Aenictus artipus 	Wilson, 1964
 * Aenictus binghamii Forel, 1900
 * Aenictus camposi Wheeler & Chapman, 1925
 * Aenictus changmaianus 	Terayama & Kubota, 1993
 * Aenictus concavus Jaitrong & Yamane, 2013
 * Aenictus cylindripetiolus Jaitrong & Yamane, 2013
 * Aenictus dentatus 	Forel, 1911
 * Aenictus doydeei Jaitrong & Yamane, 2011
 * Aenictus duengkaei Jaitrong & Yamane, 2012
 * Aenictus fergusoni Forel, 1901
 * Aenictus fuchuanensis Zhou, 2001
 * Aenictus fulvus Jaitrong & Yamane, 2011
 * Aenictus hodgsoni Forel, 1901
 * Aenictus hottai Terayama & Yamane, 1989
 * Aenictus jarujini Jaitrong & Yamane, 2010
 * Aenictus javanus Mayr, 1896
 * Aenictus khaoyaiensis Jaitrong & Yamane, 2013
 * Aenictus laeviceps (F. Smith, 1857)
 * Aenictus leptotyphlatta Jaitrong & Eguchi, 2010
 * Aenictus longinodus Jaitrong & Yamane, 2012
 * Aenictus maneerati Jaitrong & Yamane, 2013
 * Aenictus nishimurai 	Terayama & Kubota, 1993
 * Aenictus nuchiti Jaitrong & Ruangsittichai, 2018
 * Aenictus paradentatus Jaitrong & Yamane, 2012
 * Aenictus parahuonicus Jaitrong & Yamane, 2011
 * Aenictus pinkaewi Jaitrong & Yamane, 2013
 * Aenictus samungi Jaitrong & Ruangsittichai, 2018
 * Aenictus siamensis Jaitrong & Yamane, 2011
 * Aenictus sonchaengi Jaitrong & Yamane, 2011
 * Aenictus stenocephalus Jaitrong & Yamane, 2010
 * Aenictus thailandianus Terayama & Kubota, 1993
 * Aenictus watanasiti Jaitrong & Yamane, 2013
 * Aenictus wilaiae Jaitrong & Yamane, 2013
 * Aenictus wiwatwitayai Jaitrong & Wiwatwitaya, 2013
 * Aenictus yamanei Jaitrong & Yamane, 2013

Anochetus

 * Anochetus graeffei Mayr, 1870
 * Anochetus modicus Brown, 1978
 * Anochetus myops Emery, 1893
 * Anochetus princeps Emery, 1884
 * Anochetus rugosus (F. Smith, 1857)

Anoplolepis

 * Anoplolepis gracilipes (F. Smith, 1857)

Brachyponera

 * Brachyponera chinensis (Emery, 1895)
 * Brachyponera luteipes (Mayr, 1862)
 * Brachyponera nigrita (Emery, 1895)

Buniapone

 * Buniapone amblyops (Emery, 1887)

Calyptomyrmex

 * Calyptomyrmex beccarii
 * Calyptomyrmex rectopilosus Dlussky & Radchenko, 1990

Camponotus

 * Camponotus arrogans (F. Smith, 1858)
 * Camponotus aureus Dumpert, 2006
 * Camponotus auriventris Emery, 1889
 * Camponotus camelinus (F. Smith, 1857)
 * Camponotus concurrens Zettel & Laciny, 2018
 * Camponotus dolichoderoides Forel, 1911
 * Camponotus khaosokensis Dumpert, 2006
 * Camponotus lasiselene Wang & Wu, 1994
 * Camponotus nicobarensis Mayr, 1865
 * Camponotus paraleonardi Zettel & Yamane, 2018
 * Camponotus rufifemur Emery, 1900
 * Camponotus rufoglaucus (Jerdon, 1851)
 * Camponotus schoedli Dumpert, 2006
 * Camponotus schulzianus Zettel & Balàka, 2018
 * Camponotus sericeus (Fabricius, 1798)
 * Camponotus singularis (F. Smith, 1858)
 * Camponotus sophiae Zettel & Balàka, 2018
 * Camponotus weiserti Zettel & Laciny, 2018

Cardiocondyla

 * Cardiocondyla emeryi Forel, 1881
 * Cardiocondyla itsukii Seifert, Okita & Heinze, 2017
 * Cardiocondyla kagutsuchi Terayama, 1999
 * Cardiocondyla wroughtonii (Forel, 1890)

Carebara

 * Carebara affinis (Jerdon, 1851)
 * Carebara castanea F. Smith, 1858
 * Carebara diversa (Jerdon, 1851)
 * Carebara silenus (F. Smith, 1858)
 * Carebara trechideros (Zhou & Zheng, 1997)

Cataulacus

 * Cataulacus granulatus (Latreille, 1802)
 * Cataulacus horridus F. Smith, 1857

Centromyrmex

 * Centromyrmex feae (Emery, 1889)

Cerapachys

 * Cerapachys sulcinodis Emery, 1889

Cladomyrma

 * Cladomyrma sirindhornae Jaitrong, Laedprathom & Yamane, 2013

Colobopsis

 * Colobopsis cylindrica (Fabricius, 1798)
 * Colobopsis explodens Laciny & Zettel, 2018
 * Colobopsis leonardi (Emery, 1889)
 * Colobopsis markli (Dumpert, 2004)
 * Colobopsis saundersi (Emery, 1889)
 * Colobopsis vitrea (Smith, F., 1860)

Crematogaster

 * Crematogaster aberrans Forel, 1892
 * Crematogaster aurita Karavaiev, 1935
 * Crematogaster artifex Mayr, 1879
 * Crematogaster bandarensis Forel, 1913
 * Crematogaster binghamii Forel, 1904
 * Crematogaster coriaria Mayr, 1872
 * Crematogaster difformis F. Smith, 1857
 * Crematogaster dohrni kerri Forel, 1911
 * Crematogaster fraxatrix Forel, 1911
 * Crematogaster fumikoae Hosoishi & Ogata, 2015
 * Crematogaster hashimi Hosoishi, 2015
 * Crematogaster inflata F. Smith, 1857
 * Crematogaster longipilosa Forel, 1907
 * Crematogaster modiglianii Emery, 1900
 * Crematogaster pia Forel, 1911
 * Crematogaster quadriruga Forel, 1911
 * Crematogaster reticulata Hosoishi, 2009
 * Crematogaster rogenhoferi Mayr, 1879
 * Crematogaster rothneyi Mayr, 1879
 * Crematogaster sewardi Forel, 1891
 * Crematogaster treubi
 * Crematogaster tumidula Emery, 1900

Dacetinops

 * Dacetinops concinnus Taylor, 1965

Diacamma

 * Diacamma intricatum (F. Smith, 1857)
 * Diacamma jaitrongi Zettel, Pal & Laciny, 2016
 * Diacamma rugosum (Le Guillou, 1842)
 * Diacamma violaceum Forel, 1900

Dilobocondyla

 * Dilobocondyla species

Dinomyrmex

 * Dinomyrmex gigas (Latreille, 1802)

Dolichoderus

 * Dolichoderus cuspidatus (F. Smith, 1857)
 * Dolichoderus erectilobus 	Santschi, 1920
 * Dolichoderus feae 	Emery, 1889
 * Dolichoderus semirugosus (Mayr, 1870)
 * Dolichoderus siggii 	Forel, 1895
 * Dolichoderus sulcaticeps (Mayr, 1870)
 * Dolichoderus taprobanae siamensis 	Forel, 1911
 * Dolichoderus thoracicus (F. Smith, 1860)
 * Dolichoderus tuberifer Emery, 1887

Dorylus

 * Dorylus laevigatus (F. Smith, 1857)
 * Dorylus orientalis Westwood, 1835
 * Dorylus vishnui Wheeler, W.M., 1913

Echinopla

 * Echinopla charernsomi Tanansathaporn & Jaitrong, 2018
 * Echinopla jeenthongi Tanansathaporn & Jaitrong, 2018
 * Echinopla madli Zettel & Laciny, 2015
 * Echinopla melanarctos F. Smith, 1857
 * Echinopla pallipes F. Smith, 1857
 * Echinopla tunkuabduljalilii Laciny, Zettel, Maryati & Noor-Izwan, 2019

Ectomomyrmex

 * Ectomomyrmex astutus F. Smith, 1858
 * Ectomomyrmex leeuwenhoeki (Forel, 1886)

Emeryopone

 * Emeryopone buttelreepeni Forel, 1912

Erromyrma

 * Erromyrma latinodis (Mayr, 1872)

Euprenolepis

 * Euprenolepis procera (Emery, 1897)

Gnamptogenys

 * Gnamptogenys bicolor 	Emery, 1889
 * Gnamptogenys binghamii 	Forel, 1900
 * Gnamptogenys chapmani 	Brown, 1958
 * Gnamptogenys coxalis (Roger, 1860)
 * Gnamptogenys cribrata 	Emery, 1900
 * Gnamptogenys menadensis (Mayr, 1887)
 * Gnamptogenys ortostoma 	Lattke, 2004

Harpegnathos

 * Harpegnathos venator (F. Smith, 1858)

Iridomyrmex

 * Iridomyrmex anceps (Roger, 1863)

Kartidris

 * Kartidris matertera 	Bolton, 1991

Lasiomyrma

 * Lasiomyrma wiwatwitayai Jaitrong, 2010

Leptanilla

 * Leptanilla thai 	Baroni Urbani, 1977

Leptogenys

 * Leptogenys birmana Forel, 1900
 * Leptogenys borneensis Wheeler, 1919
 * Leptogenys cyanicatena Arimoto and Yamane, 2018
 * Leptogenys diminuta (F. Smith, 1857)
 * Leptogenys hysterica Forel, 1900
 * Leptogenys iridescens (F. Smith, 1857)
 * Leptogenys kitteli (Mayr, 1870)
 * Leptogenys kraepelini Forel, 1905
 * Leptogenys mutabilis (F. Smith, 1861)
 * Leptogenys myops (Emery, 1887)
 * Leptogenys punctiventris (Mayr, 1879)

Liomyrmex

 * Liomyrmex gestroi (Emery, 1887)

Lioponera

 * Lioponera longitarsus (Mayr, 1879)

Lophomyrmex

 * Lophomyrmex bedoti Emery, 1893
 * Lophomyrmex birmanus Emery, 1893
 * Lophomyrmex lucidus Menozzi, 1930
 * Lophomyrmex striatulus Rigato, 1994

Mayriella

 * Mayriella transfuga 	Baroni Urbani, 1977

Meranoplus

 * Meranoplus bicolor 	Guérin-Méneville, 1844
 * Meranoplus castaneus 	Smith, F., 1857
 * Meranoplus laeviventris 	Emery, 1889
 * Meranoplus mucronatus 	Smith, F., 1857

Mesoponera

 * Mesoponera rubra (F. Smith, 1857)

Monomorium

 * Monomorium chinense Santschi, 1925
 * Monomorium floricola (Jerdon, 1851)
 * Monomorium pharaonis (Linnaeus, 1758)

Myopias

 * Myopias bidens (Emery, 1900)
 * Myopias crawleyi (Donisthorpe, 1941)
 * Myopias maligna punctigera (Emery, 1900)
 * Myopias mandibularis (Crawley, 1924)
 * Myopias minima Jaitrong, Tasen & Guénard, 2018
 * Myopias sakaeratensis Jaitrong, Tasen & Guénard, 2018
 * Myopias sonthichaiae Jaitrong, Tasen & Guénard, 2018

Myopopone

 * Myopopone castanea (F. Smith, 1860)

Myrmecina

 * Myrmecina raviwonghei Jaitrong, Samung, Waengsothorn & Okido, 2019

Myrmica

 * Myrmica ritae Emery, 1889

Myrmicaria

 * Myrmicaria birmana Forel, 1902
 * Myrmicaria brunnea Saunders, 1842

Myrmoteras

 * Myrmoteras binghamii Forel, 1893
 * Myrmoteras concolor Bui, Eguchi & Yamane, 2013
 * Myrmoteras cuneonodus Xu, 1998
 * Myrmoteras jaitrongi Bui, Eguchi & Yamane, 2013
 * Myrmoteras opalinum Bui, Eguchi & Yamane, 2013
 * Myrmoteras tomimasai Bui, Eguchi & Yamane, 2013

Odontomachus

 * Odontomachus latidens Mayr, 1867
 * Odontomachus monticola Emery, 1892
 * Odontomachus rixosus F. Smith, 1857
 * Odontomachus simillimus F. Smith, 1858

Odontoponera

 * Odontoponera denticulata (F. Smith, 1858)
 * Odontoponera transversa (F. Smith, 1857)

Oecophylla

 * Oecophylla smaragdina (Fabricius, 1775)

Parasyscia

 * Parasyscia dohertyi Emery, 1902

Paratopula

 * Paratopula macta Bolton, 1988

Paraparatrechina

 * Paraparatrechina opaca (Emery, 1887)

Paratrechina

 * Paratrechina longicornis (Latreille, 1802)

Pheidole

 * Pheidole aglae Forel, 1913
 * Pheidole annexa Eguchi, 2001
 * Pheidole aristotelis Forel, 1911
 * Pheidole bluntschlii Forel, 1911
 * Pheidole butteli Forel, 1913
 * Pheidole capellinii Emery, 1887
 * Pheidole cariniceps Eguchi, 2001
 * Pheidole clypeocornis Eguchi, 2001
 * Pheidole comata F. Smith, 1858
 * Pheidole dugasi Forel, 1911
 * Pheidole elisae Emery, 1900
 * Pheidole fervens Smith, F., 1858
 * Pheidole fortis Eguchi, 2006
 * Pheidole gatesi (Wheeler, W.M. 1927)
 * Pheidole hongkongensis Wheeler, W.M. 1928
 * Pheidole hortensis Forel, 1913
 * Pheidole inornata Eguchi, 2001
 * Pheidole inscrobiculata Viehmeyer, 1916
 * Pheidole jacobsoni Forel, 1911
 * Pheidole longipes (F. Smith, 1857)
 * Pheidole magrettii Emery, 1887
 * Pheidole megacephala F. Smith, 1860
 * Pheidole nodus F. Smith, 1874
 * Pheidole nodifera (F. Smith, 1858)
 * Pheidole parva Mayr, 1865
 * Pheidole pieli Santschi, 1925
 * Pheidole plagiaria F. Smith, 1860
 * Pheidole planifrons Santschi, 1920
 * Pheidole protea Forel, 1912
 * Pheidole quadricuspis Emery, 1900
 * Pheidole rabo Forel, 1913
 * Pheidole rinae Emery, 1900
 * Pheidole sarawakana Forel, 1911
 * Pheidole sauberi Forel, 1905
 * Pheidole smythiesii Forel, 1902
 * Pheidole spathifera Forel, 1902
 * Pheidole taivanensis Forel, 1912
 * Pheidole tandjongensis Forel, 1913
 * Pheidole tjibodana Forel, 1905
 * Pheidole vulgaris Eguchi, 2006
 * Pheidole yeensis Forel, 1902
 * Pheidole zoceana Santschi, 1925

Philidris

 * Philidris cordata waldoi (Forel, 1911)

Platythyrea

 * Platythyrea clypeata Forel, 1911
 * Platythyrea janyai Phengsi, Jaitrong, Ruangsittichai & Khachonpisitsak, 2018
 * Platythyrea parallela (F. Smith, 1859)
 * Platythyrea quadridenta Donisthorpe, 1941
 * Platythyrea tricuspidata Emery, 1900

Polyrhachis

 * Polyrhachis abdominalis F. Smith, 1858
 * Polyrhachis alatisquamis Forel
 * Polyrhachis arachne 	Emery, 1896
 * Polyrhachis arcuata (Le Guillou, 1842)
 * Polyrhachis armata (Le Guillou, 1842)
 * Polyrhachis bicolor F. Smith, 1858
 * Polyrhachis bihamata (Drury, 1773)
 * Polyrhachis calypso Forel, 1911
 * Polyrhachis dives Smith, F. 1857
 * Polyrhachis dolomedes F. Smith, 1863
 * Polyrhachis flavicornis F. Smith, 1857
 * Polyrhachis furcata F. Smith, 1858
 * Polyrhachis halidayi Emery, 1889
 * Polyrhachis hauxwelli Bingham, 1903
 * Polyrhachis hemiopticoides Mukerjee
 * Polyrhachis hippomanes F. Smith, 1861
 * Polyrhachis illaudata Walker, 1859
 * Polyrhachis inermis F. Smith, 1858
 * Polyrhachis laevissima F. Smith, 1858
 * Polyrhachis latona Wheeler, W.M. 1909
 * Polyrhachis muelleri Forel, 1893
 * Polyrhachis noonananti Kohout, 2013
 * Polyrhachis olybria Forel, 1912
 * Polyrhachis phalerata Menozzi, 1926
 * Polyrhachis proxima Roger, 1863
 * Polyrhachis pubescens Mayr
 * Polyrhachis rastellata (Latreille, 1802)
 * Polyrhachis rixosa F. Smith, 1858
 * Polyrhachis saevissima kerri 	Forel, 1911
 * Polyrhachis sculpturata siamensis Mayr, 1879
 * Polyrhachis striata Mayr, 1862
 * Polyrhachis textor F. Smith, 1857
 * Polyrhachis thailandica Kohout, 2006
 * Polyrhachis thrinax Roger, 1863
 * Polyrhachis tibialis F. Smith, 1858
 * Polyrhachis varicolor Viehmeyer, 1916
 * Polyrhachis villipes
 * Polyrhachis watanasiti Kohout, 2013

Prenolepis

 * Prenolepis darlena Williams & LaPolla, 2016
 * Prenolepis fustinoda Williams & LaPolla, 2016
 * Prenolepis jacobsoni Crawley, 1923
 * Prenolepis melanogaster Emery, 1893
 * Prenolepis naoroji Forel, 1902
 * Prenolepis shanialena Williams & LaPolla, 2016

Pristomyrmex

 * Pristomyrmex brevispinosus Emery, 1887
 * Pristomyrmex leleji Yamane & Dias, 2016
 * Pristomyrmex punctatus Smith, F., 1860
 * Pristomyrmex rigidus 	Wang, 2003
 * Pristomyrmex sulcatus Emery, 1895
 * Pristomyrmex trachylissus F. Smith, 1858

Proatta

 * Proatta butteli Forel, 1912

Probolomyrmex

 * Probolomyrmex dammermani Wheeler, W.M. 1928
 * Probolomyrmex longinodus Terayama & Ogata, 1988
 * Probolomyrmex vieti Eguchi, Yoshimura & Yamane, 2006

Proceratium

 * Proceratium deelemani Perrault, 1981
 * Proceratium siamense De Andrade, 2003

Pseudolasius

 * Pseudolasius species

Pseudoneoponera

 * Pseudoneoponera rufipes (Jerdon, 1851)

Recurvidris

 * Recurvidris browni Bolton, 1992
 * Recurvidris chanapaithooni Jaitrong & Wiwatwitaya, 2015
 * Recurvidris lekakuli Jaitrong, Tokeeree, Pitaktunsakul & Wiwatwitaya, 2019
 * Recurvidris recurvispinosa (Forel, 1890)

Rhopalomastix

 * Rhopalomastix johorensis Wheeler, W.M., 1929

Simopone

 * Simopone oculata Radchenko, 1993

Solenopsis

 * Solenopsis geminata (Fabricius, 1804)=

Sphinctomyrmex

 * Eusphinctus furcatus (Emery, 1893)
 * Zasphinctus siamensis Jaitrong, 2016

Stigmatomma

 * Stigmatomma reclinatum (Mayr, 1879)

Strumigenys

 * Strumigenys adiastola 	Bolton, 2000
 * Strumigenys amnesia 	Bolton, 2000
 * Strumigenys arges 	Bolton, 2000
 * Strumigenys atropos 	Bolton, 2000
 * Strumigenys benulia 	Bolton, 2000
 * Strumigenys brontes 	Bolton, 2000
 * Strumigenys caniophanes 	Bolton, 2000
 * Strumigenys confusatrix 	Bolton, 2000
 * Strumigenys dipsas 	Bolton, 2000
 * Strumigenys dohertyi 	Emery, 1897
 * Strumigenys doriae 	Emery, 1887
 * Strumigenys elegantula 	Terayama & Kubota, 1989
 * Strumigenys exilirhina 	Bolton, 2000
 * Strumigenys feae 	Emery, 1895
 * Strumigenys gnathosphax 	Bolton, 2000
 * Strumigenys kichijo 	Terayama, Lin & Wu, 1996
 * Strumigenys kraepelini 	Forel, 1905
 * Strumigenys mitis 	Brown, 2000
 * Strumigenys nanzanensis 	Lin & Wu, 1996
 * Strumigenys nepalensis 	De Andrade, 1994
 * Strumigenys nothomopyx 	Bolton, 2000
 * Strumigenys nytaxis 	Bolton, 2000
 * Strumigenys paraposta 	Bolton, 2000
 * Strumigenys rotogenys 	Bolton, 2000
 * Strumigenys sauteri 	Forel, 1912
 * Strumigenys scolopax 	Bolton, 2000
 * Strumigenys signeae 	Forel, 1905
 * Strumigenys strygax 	Bolton, 2000
 * Strumigenys sydorata 	Bolton, 2000
 * Strumigenys taphra 	Bolton, 2000
 * Strumigenys tritomea 	Bolton, 2000

Syllophopsis

 * Syllophopsis australica (Forel 1907)
 * Syllophopsis sechellensis (Emery, 1894)

Tapinoma

 * Tapinoma melanocephalum (Fabricius, 1793)

Technomyrmex

 * Technomyrmex butteli Forel,
 * Technomyrmex difficilis Forel, 1892
 * Technomyrmex horni Forel, 1912
 * Technomyrmex kraepelini Forel, 1905
 * Technomyrmex modiglianii Emery, 1900
 * Technomyrmex pratensis (Smith, F., 1860)
 * Technomyrmex vitiensis Mann, 1921
 * Technomyrmex yamanei Bolton, 2007

Tetramorium

 * Tetramorium aptum 	Bolton, 1977
 * Tetramorium bicarinatum (Nylander, 1846)
 * Tetramorium ciliatum 	Bolton, 1977
 * Tetramorium cuneinode 	Bolton, 1977
 * Tetramorium eleates Forel, 1913
 * Tetramorium flavipes 	Emery, 1893
 * Tetramorium hasinae Yamane & Jaitrong, 2011
 * Tetramorium insolens (F. Smith, 1861)
 * Tetramorium lanuginosum Mayr, 1870
 * Tetramorium nacta 	Bolton, 1976
 * Tetramorium nipponense Wheeler, W.M. 1928
 * Tetramorium pacificum Mayr,
 * Tetramorium palaense Bolton, 1979
 * Tetramorium parvispinum (Emery, 1893)
 * Tetramorium parvum Bolton, 1977
 * Tetramorium polymorphum Yamane & Jaitrong, 2011
 * Tetramorium simillimum (F. Smith, 1851)
 * Tetramorium smithi Mayr, 1879
 * Tetramorium walshi (Forel, 1890)
 * Tetramorium wroughtonii (Forel, 1902)

Tetraponera

 * Tetraponera aitkenii (Forel, 1902)
 * Tetraponera allaborans (Walker, 1859)
 * Tetraponera attenuata F. Smith, 1877
 * Tetraponera binghami (Forel, 1902)
 * Tetraponera connectens Ward, 2001
 * Tetraponera crassiuscula (Emery, 1900)
 * Tetraponera difficilis (Emery, 1900)
 * Tetraponera extenuata Ward, 2001
 * Tetraponera modesta (F. Smith, 1860)
 * Tetraponera nigra (Jerdon, 1851)
 * Tetraponera nitida 	Smith, F., 1860
 * Tetraponera nodosa Ward, 2001
 * Tetraponera notabilis Ward, 2001
 * Tetraponera pilosa (F. Smith, 1858)
 * Tetraponera rufonigra (Jerdon, 1851)

Trichomyrmex

 * Trichomyrmex destructor (Jerdon, 1851)

Yunodorylus

 * Yunodorylus sexspinus (Xu, 2000)

Vollenhovia

 * Vollenhovia emeryi Wheeler, W.M., 1906