[{"data":1,"prerenderedAt":379},["ShallowReactive",2],{"species-sheet-\u002Fspecies\u002Fcamponotus-japonicus":3},{"species":4,"profile":255,"countryNames":294,"lookalikes":301,"similar":307,"posts":358},{"id":5,"authority":6,"colonyStructure":7,"confidence":8,"countries":11,"defense":18,"diet":21,"difficulty":24,"dryHumidity":25,"escapeRisk":10,"estimated":26,"experience":32,"extension":33,"finder":34,"founding":35,"growth":36,"guide":25,"hibernation":37,"hibernationMonths":38,"hibernationTemperature":41,"humidity":44,"image":47,"imageCredit":48,"imageHeight":52,"imageWidth":53,"interests":25,"keptSince":25,"legal":54,"lookalikes":57,"majorSize":61,"maxWorkers":62,"meta":63,"nests":64,"nuptialFlightMonths":68,"nuptialFlightTime":71,"nuptialFlightTriggers":72,"polymorphism":76,"queenSize":77,"regions":80,"relatedPosts":82,"reviewedAt":56,"scientificName":86,"sources":87,"stem":242,"subfamily":243,"temperature":244,"tribe":247,"workerSize":248,"__hash__":249,"slug":250,"genus":251,"nickname":252,"aliases":253,"tagline":254},"species\u002Fspecies\u002Fcamponotus-japonicus.yml","Mayr, 1866","monogyne",{"biology":9,"husbandry":10,"nuptialFlight":10},"high","medium",[12,13,14,15,16,17],"JP","KR","KP","CN","MN","RU",[19,20],"bite","acid",[22,23],"sugar","insects","4",null,[27,28,29,30,31],"hibernationTemperature","nuptialFlightMonths","workerSize","queenSize","maxWorkers","compiled","yml",false,"claustral","moderate","recommended",[39,40],11,3,[42,43],8,12,[45,46],50,70,"https:\u002F\u002Fcdn.brumaants.com\u002Fimages\u002Fspecies\u002Fcamponotus-japonicus.jpg",{"author":49,"license":50,"url":51},"ippanjin","CC BY 4.0","https:\u002F\u002Fwww.inaturalist.org\u002Fobservations\u002F383038133",800,1200,{"status":55,"checked":56},"free","2026-10-11",[58,59,60],"Camponotus herculeanus","Camponotus obscuripes","Camponotus fallax",14,1000,{},[65,66,67],"ytong","acrylic","naturalistic",[69,70],4,6,"afternoon",[73,74,75],"rain","heat","calm","polymorphic",[78,79],15,18,[81],"asia",[83,84,85],"how-to-hibernate-your-ants","how-to-make-a-ytong-nest","what-to-do-after-catching-your-first-queen-ant","Camponotus japonicus",[88,96,101,105,109,113,117,123,127,131,135,139,144,148,153,157,161,165,169,173,177,181,185,189,193,197,201,205,209,213,217,221,226,230,234,238],{"type":89,"title":90,"url":91,"covers":92},"paper","Yasumatsu and Brown (1957), Journal of the Faculty of Agriculture, Kyushu University 11: A second look at the ants of the Camponotus herculeanus group in eastern Asia (japonicus versus herculeanus, always a soil nester)","https:\u002F\u002Fcatalog.lib.kyushu-u.ac.jp\u002Fopac_download_md\u002F22673\u002Fp045.pdf",[93,94,95],"taxonomy","biology","distribution",{"type":97,"title":98,"url":99,"covers":100},"reference","AntCat: Camponotus japonicus Mayr, 1866","https:\u002F\u002Fantcat.org\u002Fcatalog\u002F432909",[93,95],{"type":97,"title":102,"url":103,"covers":104},"Catalogue of Life: Camponotus (Camponotus) japonicus Mayr, 1866 (AntCat classification and synonyms)","https:\u002F\u002Fwww.catalogueoflife.org\u002Fdata\u002Ftaxon\u002FQDW6",[93],{"type":97,"title":106,"url":107,"covers":108},"AntWiki: Camponotus japonicus","https:\u002F\u002Fwww.antwiki.org\u002Fwiki\u002FCamponotus_japonicus",[93,94,95],{"type":89,"title":110,"url":111,"covers":112},"Dhadwal and Bharti (2021), Halteres 12: First record of Camponotus japonicus Mayr, 1866 from India (redescription, distribution, colony structure)","https:\u002F\u002Fdoi.org\u002F10.5281\u002Fzenodo.6198922",[93,94,95],{"type":97,"title":114,"url":115,"covers":116},"GBIF: Camponotus japonicus Mayr, 1866, occurrence records by country","https:\u002F\u002Fwww.gbif.org\u002Fspecies\u002F5034161",[95],{"type":97,"title":118,"url":119,"covers":120},"Wikipedia (Japanese): Kuro-oo-ari, Camponotus japonicus (sizes, range, nest, flight season, founding, keeping)","https:\u002F\u002Fja.wikipedia.org\u002Fwiki\u002F%E3%82%AF%E3%83%AD%E3%82%AA%E3%82%AA%E3%82%A2%E3%83%AA",[94,95,121,122],"nuptialFlight","husbandry",{"type":89,"title":124,"url":125,"covers":126},"Xu et al. (2023), Insects 14: 664: Chemical components of Dufours and venom glands in Camponotus japonicus (body length of the castes of a mature nest in Shaanxi, China)","https:\u002F\u002Fpmc.ncbi.nlm.nih.gov\u002Farticles\u002FPMC10380308",[94],{"type":89,"title":128,"url":129,"covers":130},"Wei et al. (2025), Insects 16: 292: Impact of polystyrene micro- and nanoplastics on Camponotus japonicus (mature wild nests with up to three queens and over 4000 workers; laboratory colonies of about 1000 workers kept at 25 degrees and 60 percent humidity)","https:\u002F\u002Fpmc.ncbi.nlm.nih.gov\u002Farticles\u002FPMC11943275",[94,122],{"type":89,"title":132,"url":133,"covers":134},"Goko et al. (2023), PLOS ONE 18: e0293455: Characteristics of daily foraging activity of Camponotus japonicus (colonies kept in dark plaster nests at a constant room temperature)","https:\u002F\u002Fpmc.ncbi.nlm.nih.gov\u002Farticles\u002FPMC10653500",[122,94],{"type":89,"title":136,"url":137,"covers":138},"Ma et al. (2025), Ecology and Evolution 15: e71940: Environmental variation contributes to head phenotypes in workers of Camponotus japonicus (minor and major workers, 22 sites across China)","https:\u002F\u002Fpmc.ncbi.nlm.nih.gov\u002Farticles\u002FPMC12336421",[94],{"type":140,"title":141,"url":142,"covers":143},"careSheet","Ari-gura (Japanese keeper guide): Camponotus japonicus (humid nest with a drier spot for cocoons, winter rest, flight season, colony size)","https:\u002F\u002Fari-gura.com\u002Fcamponotus_japonicus\u002F",[122,94,121],{"type":140,"title":145,"url":146,"covers":147},"Ant Street Journal: Camponotus japonicus (sizes from the Japanese ant atlas, flight season, when medium workers and majors appear, queens fighting)","https:\u002F\u002Fant-street.net\u002Fcamponotus-japonicus\u002F",[94,122,121,95],{"type":149,"title":150,"url":151,"covers":152},"forum","Note.com (Koishi): Kuro-oo-ari keeping diary (winter rest in a cold, dim spot, feeding, nest care)","https:\u002F\u002Fnote.com\u002Fjoyous_lily297\u002Fn\u002Fn2b63d400fd93",[122],{"type":149,"title":154,"url":155,"covers":156},"Shige no ari shiiku: Camponotus japonicus development from egg to adult (26 to 29 degrees best, longer heat above 30 degrees harms the brood)","https:\u002F\u002Fantsihge.livedoor.blog\u002Farchives\u002F1366388.html",[122,94],{"type":149,"title":158,"url":159,"covers":160},"Anttech.jp: first new queens in a captive Camponotus japonicus colony (queen collected on 27 May 2015 in Nagano, first winged queens in June 2022 under the same keeper)","https:\u002F\u002Fanttech.jp\u002F?p=7203",[94],{"type":140,"title":162,"url":163,"covers":164},"Antstore: Camponotus cf. japonicus (climate, nest and feeding guide, flight season)","https:\u002F\u002Fwww.antstore.net\u002Fshop\u002Fen\u002Fants\u002FAnts-from-Asia\u002FCamponotus-cf--japonicus.html",[122,94,121],{"type":140,"title":166,"url":167,"covers":168},"ANTCUBE: Camponotus japonicus","https:\u002F\u002Fantcube.shop\u002Fen\u002Fproduct\u002Fcamponotus-japonicus\u002F",[122,121],{"type":140,"title":170,"url":171,"covers":172},"FormicaMarket: Camponotus japonicus care guide (winter rest at about 8 degrees, flight season)","https:\u002F\u002Fformicamarket.com\u002Fen\u002Fspecies\u002Fcamponotus-japonicus",[122,121],{"type":140,"title":174,"url":175,"covers":176},"AntScout: Camponotus japonicus (cool winter rest from November to February, feeding, nests)","https:\u002F\u002Fantscout.com\u002Fspecies\u002Fcamponotus-japonicus",[122],{"type":140,"title":178,"url":179,"covers":180},"Esprit Fourmis: Camponotus japonicus (no strict winter rest, a mild winter drop is enough)","https:\u002F\u002Fwww.esprit-fourmis.fr\u002Fen\u002Fproduit\u002Fcamponotus-japonicus\u002F",[122],{"type":140,"title":182,"url":183,"covers":184},"Esthetic Ants: Camponotus japonicus (no strict winter diapause, nests, feeding)","https:\u002F\u002Fwww.estheticants.com\u002Fproduct-page\u002Fcamponotuys-japonicus",[122],{"type":149,"title":186,"url":187,"covers":188},"Ameisenforum.de: Camponotus japonicus, AtTheAnt keeping report (October 2021 to September 2026: slow growth, winter slowdown at room temperature, picky eating, nest too large)","https:\u002F\u002Fameisenforum.de\u002Fcamponotus-japonicus-t62218.html",[122,94],{"type":149,"title":190,"url":191,"covers":192},"Ameisenforum.de: Camponotus japonicus Gründung (first worker after 34 days, escape barrier remarks, protein need)","https:\u002F\u002Fwww.ameisenforum.de\u002Fcamponotus-japonicus-grundung-t54662.html",[122],{"type":149,"title":194,"url":195,"covers":196},"Ameisenforum.de: Camponotus japonicus von BenVape (small shipped colony that died within three months)","https:\u002F\u002Fwww.ameisenforum.de\u002Fcamponotus-japonicus-von-benvape-t59177.html",[122],{"type":149,"title":198,"url":199,"covers":200},"Ameisenforum.de: Camponotus japonicus Haltungsbericht HollySue (stalled colony, heat mat avoided, small crickets taken)","https:\u002F\u002Fameisenforum.de\u002Fcamponotus-japonicus-haltungsbericht-hollysue-t60744.html",[122],{"type":149,"title":202,"url":203,"covers":204},"Ameisenforum.de: Haltungsbericht Camponotus japonicus (paludarium setup, doubts about the winter rest)","https:\u002F\u002Fameisenforum.de\u002Fhaltungsbericht-camponotus-japonicus-t58660.html",[122],{"type":149,"title":206,"url":207,"covers":208},"Ameisenforum.de: Camponotus japonicus Haltung (slow start, warmer and more humid than Lasius niger)","https:\u002F\u002Fameisenforum.de\u002Fcamponotus-japonicus-haltung-t61254.html",[122],{"type":149,"title":210,"url":211,"covers":212},"Formiculture: Diapause or not at Camponotus japonicus (queen kept laying at about 15 degrees, advice to cool further)","https:\u002F\u002Fwww.formiculture.com\u002Ftopic\u002F12220-diapause-or-not-at-camponotus-japonicus\u002F",[122],{"type":149,"title":214,"url":215,"covers":216},"Formiculture: Camponotus japonicus advice needed (slow brood, winter diapause with small larvae, egg to worker time)","https:\u002F\u002Fwww.formiculture.com\u002Ftopic\u002F21317-camponotus-japonicus-advice-needed\u002F",[122],{"type":97,"title":218,"url":219,"covers":220},"AntFlights: nuptial flight stats of Camponotus japonicus (2 records, around midday and in the afternoon)","https:\u002F\u002Fantflights.com\u002Fstats\u002Fflights\u002FCamponotus\u002Fjaponicus",[121],{"type":97,"title":222,"url":223,"covers":224},"EU list of invasive alien species of Union concern (Implementing Regulation 2016\u002F1141, consolidated)","https:\u002F\u002Feur-lex.europa.eu\u002Feli\u002Freg_impl\u002F2016\u002F1141\u002Foj",[225],"legal",{"type":97,"title":227,"url":228,"covers":229},"Wikipedia: List of invasive alien species of Union concern (114 species in 2025, the listed ants are Brachyponera chinensis, Solenopsis geminata, invicta and richteri, and Wasmannia auropunctata)","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FList_of_invasive_alien_species_of_Union_concern",[225],{"type":97,"title":231,"url":232,"covers":233},"Bundesartenschutzverordnung (BArtSchV), Anlage 1: protected species in Germany (the only ants listed are Formica species)","https:\u002F\u002Fwww.gesetze-im-internet.de\u002Fbartschv_2005\u002Fanlage_1.html",[225],{"type":97,"title":235,"url":236,"covers":237},"MITECO: Spanish Catalogue of Invasive Alien Species, arthropods","https:\u002F\u002Fwww.miteco.gob.es\u002Fes\u002Fbiodiversidad\u002Ftemas\u002Fconservacion-de-especies\u002Fespecies-exoticas-invasoras\u002Fce_eei_artropodos_nc.aspx",[225],{"type":97,"title":239,"url":240,"covers":241},"Japan Ministry of the Environment: designated invasive alien species under the Invasive Alien Species Act","https:\u002F\u002Fwww.env.go.jp\u002Fnature\u002Fintro\u002F2outline\u002Flist.html",[225],"species\u002Fcamponotus-japonicus","Formicinae",[245,246],22,28,"Camponotini",[70,43],"qamclaTctepgNVP0uvlLRgdfxJ5Gv9PTsjK7isgbV_w","camponotus-japonicus","Camponotus","Japanese carpenter ant",[],"A sturdy, matte-black giant of East Asian fields and parks that builds up slowly, yet can follow the same queen for many years.",{"id":256,"title":257,"aliases":253,"body":258,"description":262,"extension":265,"faqs":266,"identification":276,"language":277,"meta":278,"navigation":279,"nickname":252,"notes":280,"path":291,"seo":292,"stem":242,"tagline":254,"__hash__":293},"speciesProfiles\u002Fspecies\u002Fcamponotus-japonicus.md","Camponotus Japonicus",{"type":259,"value":260,"toc":261},"minimark",[],{"title":262,"searchDepth":263,"depth":263,"links":264},"",2,[],"md",[267,270,273],{"question":268,"answer":269},"When do the big-headed majors appear in a Camponotus japonicus colony?","Only once the colony has grown a lot. A Japanese keeping site saw medium-sized workers at roughly 50 to 100 workers and the first majors at about 200 to 300 workers or more. The sizes blend into each other instead of forming two sharp groups, and keepers rarely see the biggest workers outside the nest.",{"question":271,"answer":272},"Is Camponotus japonicus the same species as Camponotus herculeanus?","Not according to current catalogs, but taxonomists argued about it for a long time. Many early authors treated japonicus as a subspecies of the northern Camponotus herculeanus, and Yasumatsu and Brown reported intermediate forms in 1951. In 1957 they found that most samples can be sorted clearly: japonicus is mostly black, with a dull, coarsely sculptured body and long, dense hairs on the gaster, while the East Asian herculeanus has a shinier gaster with short hairs and often some red on the thorax and legs. AntCat now lists japonicus as a valid species.",{"question":274,"answer":275},"How long does a Camponotus japonicus colony live?","As long as its queen, and Japanese sources give a queen lifespan of up to about 20 years. Workers live only one to two years and are constantly replaced, and in nature a colony needs four to five years to reach full size. One Japanese keeper's queen, caught in 2015, was still leading her colony in 2022, when it produced winged queens for the first time under that keeper.","Dull, matte black workers of many sizes, from small minors to majors with big heads (sometimes dark red), with dense golden hairs on the gaster and no red on the thorax. That separates it from the red-thoraxed Camponotus obscuripes and from the shinier, short-haired Camponotus herculeanus, and some shops label the stock 'cf. japonicus', which means the identification is not fully certain.","en",{},true,[281,284,286,288],{"kind":282,"text":283},"tip","Give the colony a cool winter rest from late fall to early spring, for example in an unheated room or a shaded, sheltered spot, as Japanese keepers do. The ants cluster together and usually need no food, but the nest must not dry out, and even colonies kept warm tend to slow down and pause their brood for a while in winter.",{"kind":282,"text":285},"Keep one part of the nest damp and another part drier, because the workers carry their cocoons to the drier spot, and never let drops or puddles sit on the floor where eggs and larvae lie. Give drinking water separately from the moisture of the nest.",{"kind":282,"text":287},"Offer diluted maple syrup or invert sugar syrup, since Japanese keepers report that cheap honey is often refused, and change the protein now and then. One German colony refused every frozen insect but took freshly killed flies, while others took cut mealworms and small crickets right away.",{"kind":289,"text":290},"watchOut","Expect a slow start and do not hurry the colony into a big nest: ants dislike a nest that is far too large, and some young colonies in captivity stall for months. Move up in small steps once the brood and workers fill the current space.","\u002Fspecies\u002Fcamponotus-japonicus",{"description":262},"vxHq8-iLdmBhPuNychzqmPA8c3WSl2EoOPx32H6E7y4",[295,296,297,298,299,300],"China","Japan","Mongolia","North Korea","Russia","South Korea",[302,304,305],{"name":58,"slug":303},"camponotus-herculeanus",{"name":59,"slug":25},{"name":60,"slug":306},"camponotus-fallax",[308,324,343],{"slug":309,"scientificName":310,"genus":251,"nickname":262,"aliases":311,"tagline":312,"image":313,"experience":32,"guide":25,"difficulty":24,"workerSize":314,"majorSize":78,"queenSize":315,"temperature":317,"hibernation":318,"hibernationTemperature":319,"hibernationBand":320,"sizeClass":321,"founding":35,"colonyStructure":7,"regions":322},"camponotus-sylvaticus","Camponotus sylvaticus",[],"A long-legged, red-and-black Mediterranean carpenter ant that sprints out of reach after dark and needs a few patient years to grow into a big colony.","https:\u002F\u002Fcdn.brumaants.com\u002Fimages\u002Fspecies\u002Fcamponotus-sylvaticus.jpg",[70,43],[61,316],17,[245,246],"required",[42,61],"cool","large",[323],"europe",{"slug":325,"scientificName":326,"genus":251,"nickname":327,"aliases":328,"tagline":331,"image":332,"experience":32,"guide":25,"difficulty":333,"workerSize":334,"majorSize":78,"queenSize":336,"temperature":337,"hibernation":318,"hibernationTemperature":340,"hibernationBand":320,"sizeClass":321,"founding":35,"colonyStructure":7,"regions":341},"camponotus-cruentatus","Camponotus cruentatus","Blood-spotted sugar ant",[329,330],"Blood-stained carpenter ant","Blood-red carpenter ant","A matte-black Mediterranean giant with a rust-red band across its gaster, shy while small and fiercely territorial once the colony grows.","https:\u002F\u002Fcdn.brumaants.com\u002Fimages\u002Fspecies\u002Fcamponotus-cruentatus.jpg","5",[70,335],10,[78,79],[338,339],25,30,[335,78],[323,342],"northAfrica",{"slug":344,"scientificName":345,"genus":251,"nickname":262,"aliases":346,"tagline":347,"image":348,"experience":32,"guide":25,"difficulty":24,"workerSize":349,"majorSize":25,"queenSize":351,"temperature":352,"hibernation":318,"hibernationTemperature":355,"hibernationBand":320,"sizeClass":10,"founding":35,"colonyStructure":7,"regions":356},"camponotus-lateralis","Camponotus lateralis",[],"A small, shy carpenter ant with a red head and a black gaster that passes itself off as an acrobat ant and shadows its trails to find food.","https:\u002F\u002Fcdn.brumaants.com\u002Fimages\u002Fspecies\u002Fcamponotus-lateralis.jpg",[40,350],7,[42,335],[353,354],21,27,[42,43],[323,342,357],"middleEast",[359,366,373],{"id":360,"title":361,"description":362,"image":363,"categoryText":364,"path":365},"blog\u002Fhow-to-hibernate-your-ants.md","How To Hibernate Your Ants - Hibernation Tutorial","In this guide, we’re going to talk about hibernation: What is it? Why do ants need hibernation? Should I hibernate my ants? Let's see!","https:\u002F\u002Fcdn.brumaants.com\u002Fimages\u002Fbruma_ants_thumbnail_hibernation_guide.png","Ant Keeping Basics","\u002Fhow-to-hibernate-your-ants",{"id":367,"title":368,"description":369,"image":370,"categoryText":371,"path":372},"blog\u002Fhow-to-make-a-ytong-nest.md","How To Make a Ytong Nest - Ant Keeping Tutorial","In this tutorial, you will learn how to make a Ytong nest for your ant colonies! This is one of the best nest types for many ant species!","https:\u002F\u002Fcdn.brumaants.com\u002Fimages\u002Fbruma_ants_thumbnail_ytong_ant_nest_tutorial.png","Tutorials & D.I.Y.","\u002Fhow-to-make-a-ytong-nest",{"id":374,"title":375,"description":376,"image":377,"categoryText":364,"path":378},"blog\u002Fwhat-to-do-after-catching-your-first-queen-ant.md","What To Do After Catching Your First Queen Ant!","In this short guide, you’re going to learn what steps you need to take after catching your very first queen ant! Let's get into it!","https:\u002F\u002Fcdn.brumaants.com\u002Fimages\u002Fbrumaants_miniatura_what_to_do_after_catching_a_queen_ant.png","\u002Fwhat-to-do-after-catching-your-first-queen-ant",1791900223105]