Lasius

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Lasius
Temporal range: 48.6–0 Ma
Eocene – Recent
Lasius niger
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Lasiini
Genus: Lasius
Fabricius, 1804
Type species
Formica nigra
Subgenera
Diversity
123 species
23 fossil species
(Species Checklist)

Lasius niger casent0005404 profile 1.jpg

Lasius niger

Lasius niger casent0005404 dorsal 1.jpg

Specimen Label

Synonyms
Evolutionary Relationships
Formicinae

Myrmelachistini
  (2 genera)




Lasiini

Cladomyrma
  (13 species)





Lasius
  (123 species)



Myrmecocystus
  (30 species)






Zatania
  (6 species)




Paraparatrechina
  (42 species)



Prenolepis
  (19 species)






Nylanderia
  (147 species)




Pseudolasius
  (66 species)




Euprenolepis
  (8 species)



Paratrechina
  (6 species)











Melophorini
  (9 genera)




Formicini
  (8 genera)





Gesomyrmex, Oecophylla



Plagiolepidini
  (9 genera)





Gigantiops, Myrmoteras, Santschiella



Camponotini
  (8 genera)








Based on Ward et al. (2016) and Matos-Maravi et al. (2018).

Lasius is one of the most prominent and familiar of the Holarctic ant genera. From the time of Reaumur in the eighteenth century (Wheeler, 1926), European and North American entomologists have focused attention on it in countless general biological and taxonomic investigations which are today part of the classical foundation of myrmecology. It is probably best known for its conspicuous nuptial flights, its habit of tending and transporting homopterous insects, and the temporary parasitic behavior of some of its species. It has also attracted much attention as one of the several ant genera which have persisted in Europe and North America since early Tertiary times with only a small amount of visible evolutionary change. (Wilson 1955)

Photo Gallery

  • Lasius 6057.jpg

Identification

The morphological distinctions between Lasuis and Acanthomyops have always been unambiguous but it has taken a recent molecular phylogenetic analysis (Janda et al. 2004) to settle whether or not these two groups represent two distinctive genera. The latter is well accepted today as a synonym of Lasius. It remains convenient for identification purposes to distinguish Acanthomyops as a distinctive species group within Lasius.

Nearctic species of Lasius with long maxillary palpi, those that were once thought to be distinctive from Acanthomyops, can be determined to species using this key by Wilson (1955) :

Wing (1968) provides the following in his revision of the Neartic Acanthomyops: Acanthomyops has short, 3-segmented maxillary palpi, while those of Lasius are 6-segmented and long. Another attribute of Acanthomyops that serves as a convenient diagnostic character for field collectors using a mouth-type aspirator is the presence of a characteristic odor produced by the mandibular glands of disturbed workers. This odor, a defense mechanism, is like that of oil of citronella or lemon verbena. As sensed by a collector with normal olfactory powers the odor is pronounced. A few species of Lasius possess a similar odor, but it is sensed, at most, as quite weak. Lasius umbratus probably has the strongest odor of any species of Lasius, yet it is decidedly weaker than that of all species of Acanthomyops I have collected.

There is also a somewhat outdated (1955) and restricted (no Nearctic Acanthomyops queens and males):

Keys including this Genus

 

Keys to Species in this Genus

Distribution

Lasius occupies a purely Holarctic range. Northward it reaches northern Scandinavia, the Baikal region of Siberia, Kamchatka, southeastern Alaska, and southern Labrador. Southward it reaches Madeira, North Africa, northern Iraq, the southern Himalayas, the mountains of Formosa, the mountains of central Mexico, and northern Florida. Where it comes closest geographically to tropical faunas, as in southeastern Asia, it still retains its north-temperate character, i.e., limited to temperate vegetation at higher elevations and there associated chiefly with typically Holarctie ant genera. (Wilson 1955)

Distribution and Richness based on AntMaps

Biology

Within this range it is among the most abundant of all insect genera. In Europe the two species Lasius niger and Lasius flavus are often the overriding dominants of the ant fauna in local situations and under a variety of ecological conditions. In the eastern United States neoniger mounts such dense populations in open fields and lawns that W. M. Wheeler was once moved (1905) to suggest that it might be the most abundant insect in North America. Such a contention would probably be an exaggeration with respect to all insects, of course, yet there is no denying neoniger its importance as a major faunal influent within its range and favored habitat.

Lasius is also remarkable - perhaps unique - among animal groups thus far monographed, in its great abundance, ubiquity, and conspicuousness, and the consequent ease with which it can be found in the field. Anywhere in the northern United States, in practically all but desert and semidesert conditions, it is possible for an investigator to walk onto nearly any plot of ground and within a matter of minutes find nests of one or more species. (Wilson 1955)

Association with Other Organisms

Species Uncertain

Unknown species of Lasius are hosts for the nematodes Diploscapter lycostoma (Wahab, 1962), Koerneria histophora (Wahab, 1962), Pheromermis myrmecophila (Crawley & Baylis, 1921) and Pristionchus lheritieri (Wahab, 1962).

All Associate Records for Genus

Explore Associate Data: All, Drilldown
Taxon Relationship Associate Type Associate Taxon Associate Relationship Locality Source Notes
Lasius host nematode Diploscapter lycostoma parasite Wahab, 1962
Lasius host nematode Koerneria histophora parasite Wahab, 1962
Lasius host nematode Pheromermis myrmecophila parasite Crawley & Baylis, 1921
Lasius host nematode Pristionchus lheritieri parasite Wahab, 1962
Lasius alienus host fungus Laboulbenia formicarum pathogen Espadaler & Santamaria, 2012
Lasius alienus mutualist butterfly Glaucopsyche alexis Obregon et al. 2015
Lasius brunneus host nematode Diplogasteroides spengelii parasite Kohler, 2012
Lasius brunneus host nematode Diploscapter sp. parasite Kohler, 2012
Lasius brunneus host nematode Halicephalobus similigaster parasite Kohler, 2012
Lasius brunneus host nematode Koerneria histophora parasite Kohler, 2012
Lasius brunneus host nematode Oscheius dolichurus parasite Kohler, 2012
Lasius brunneus mutualist butterfly Glaucopsyche alexis Obregon et al. 2015
Lasius claviger host nematode Oscheius dolichurus parasite Nickle & Ayre, 1966
Lasius distinguendus host fungus Aegeritella tuberculata pathogen Espadaler & Santamaria, 2012
Lasius flavus host fungus Aegeritella tuberculata pathogen Espadaler & Santamaria, 2012
Lasius flavus host nematode Oscheius dolichurus parasite Janet, 1893; Wahab, 1962
Lasius flavus host nematode Pheromermis villosa parasite Kaiser, 1986
Lasius grandis host fungus Aegeritella tuberculata pathogen Espadaler & Santamaria, 2012
Lasius grandis host fungus Laboulbenia formicarum pathogen Espadaler & Santamaria, 2012
Lasius murphyi host fungus Laboulbenia formicarum pathogen Espadaler & Santamaria, 2012
Lasius neglectus host fungus Laboulbenia formicarum pathogen Espadaler & Santamaria, 2012
Lasius neoniger host fungus Laboulbenia formicarum pathogen Espadaler & Santamaria, 2012
Lasius niger host nematode Pheromermis lasiusi parasite Rubstov, 1970
Lasius niger host nematode Pheromermis villosa parasite Kaiser, 1986
Lasius niger mutualist butterfly Glaucopsyche alexis Obregon et al. 2015
Lasius niger mutualist butterfly Zizeeria knysna Obregon et al. 2015
Lasius niger mutualist butterfly Laeosopis roboris Obregon et al. 2015
Lasius nitidigaster host fungus Aegeritella tuberculata pathogen Espadaler & Santamaria, 2012
Lasius pallitarsis host fungus Aegeritella tuberculata pathogen Espadaler & Santamaria, 2012
Lasius pallitarsis host fungus Laboulbenia formicarum pathogen Espadaler & Santamaria, 2012
Lasius umbratus host fungus Aegeritella tuberculata Espadaler & Santamaria, 2012

Castes

Morphology

Worker Morphology

 • Antennal segment count 12 • Antennal club absent-gradual • Palp formula 6,4 • Total dental count 6-10 (0-1) • Spur formula 1 simple, 1 simple; 0, 0 • Eyes present • Scrobes absent • Caste a few species weakly polymorphic • Sting absent

Karyotype

All Karyotype Records for Genus

Explore Karyotype Data: All, Drilldown
Taxon Haploid Diploid Karyotype Locality Source Notes
Lasius alienus 28 Switzerland Hauschteck, 1962
Lasius alienus 15 30 Germany; Switzerland Hauschteck-Jungen & Jungen, 1983 n=14 was also reported, Lorite and Palomeque 2010 suggested that such karyotype is due Robertsonian polymorphism
Lasius brunneus 15 1M+3ST+11T Spain Lorite et al., 1998a; Lorite et al., 2002b Karyotype n=16 was reported in Lorite et al., 2002b and suggested that it is due B-chromosome
Lasius emarginatus 30 Switzerland Hauschteck, 1962
Lasius flavus 15 30 Switzerland Hauschteck, 1962; Hauschteck-Jungen & Jungen, 1983
Lasius fuliginosus 14 28 Italy; Switzerland Hauschteck, 1962; Hauschteck-Jungen & Jungen, 1983
Lasius nearcticus 15 30 USA Crozier, 1970b
Lasius niger 15 30 Japan; Spain; Switzerland Hauschteck, 1962; Hauschteck, 1963; Imai & Yosida, 1964; Imai, 1966; Imai, 1969; Imai & Kubota, 1972; Palomeque et al., 1990b, 1990c In Spain population in Palomeque et al. 1990 variation in the number of chromososmes were reported due B-chromosome
Lasius pallitarsis 28 USA Hung, 1969 as ''Lasius pallitarsus''
Lasius sakagamii 15 30 2M+28A Japan Yamauchi et al., 2001
Lasius talpa 30 Japan Imai & Yosida, 1964; Imai, 1966; Imai, 1969
Lasius umbratus 15 30 Switzerland; USA Hauschteck, 1962; Hung, 1969

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • LASIUS [Formicinae: Lasiini]
    • Lasius Fabricius, 1804: 415. Type-species: Formica nigra, by subsequent designation of Bingham, 1903: 338.
    • [Lasius Jurine, 1801: 164 (Apidae), resurrected by Morice & Durrant, 1915: 421, suppressed by Act of Commission.]
    • Lasius junior synonym of Acanthomyops: Forel, 1916: 460; Donisthorpe, 1916c: 276; Morice & Durrant, 1917: 442. Donisthorpe, 1927b: 206; Donisthorpe, 1937b: 132; Donisthorpe, 1943f: 655; Donisthorpe, 1946g: 91.
    • Lasius junior synonym of Formicina: Emery, 1916a: 61; Bondroit, 1918: 19.
    • Lasius as genus: Wheeler, W.M. 1916k: 172; Emery, 1925b: 226; Wilson, 1955a: 11.
    • Lasius senior synonym of Donisthorpea: Wheeler, W.M. 1916k: 172; Emery, 1925b: 226; Wilson, 1955a: 11.
    • Lasius senior synonym of †Tylolasius: Hong, Wu & Ren, 2001: 348.
    • Subgenera of Lasius: nominal plus Acanthomyops, Austrolasius, Cautolasius, Chthonolasius, Dendrolasius.
  • DONISTHORPEA [junior synonym of Lasius]
    • Donisthorpea Morice & Durrant, 1915: 423. Type-species: Formica nigra, by original designation. [Unnecessary replacement name for Lasius Fabricius.]
    • Donisthorpea as genus: Donisthorpe, 1915d: 184.
    • Donisthorpea subgenus of Formicina: Emery, 1916a: 11; Emery, 1916b: 239.
    • Donisthorpea subgenus of Acanthomyops: Donisthorpe, 1927b: 229; Donisthorpe, 1946g: 91.
    • Donisthorpea junior synonym of Acanthomyops: Forel, 1916: 460; Morice & Durrant, 1917: 442; Donisthorpe, 1927b: 209.
    • Donisthorpea junior synonym of Lasius: Wheeler, W.M. 1916k: 172; Wilson, 1955a: 11.
    • [Lasius and Donisthorpea share the same type-species, synonymy is therefore absolute.]
  • TYLOLASIUS [junior synonym of Lasius]
    • Tylolasius Zhang, J. 1989: 295. Type-species: †Tylolasius inflatus, by original designation.
    • Tylolasius junior synonym of Lasius: Hong, Wu & Ren, 2001: 348.

References

  • Agosti, D. 1991. Revision of the oriental ant genus Cladomyrma, with an outline of the higher classification of the Formicinae (Hymenoptera: Formicidae). Syst. Entomol. 16: 293-310 (page 296, Lasius in Formicinae, Lasius genus group)
  • Agosti, D.; Collingwood, C. A. 1987b. A provisional list of the Balkan ants (Hym. Formicidae) with a key to the worker caste. II. Key to the worker caste, including the European species without the Iberian. Mitt. Schweiz. Entomol. Ges. 60: 261-293 (page 281, Revisionary studies with key)
  • Arnol'di, K. V.; Dlussky, G. M. 1978. Superfam. Formicoidea. 1. Fam. Formicidae - ants. Pp. 519-556 in: Medvedev, G. S. (ed.) Keys to the insects of the European part of the USSR. Vol. 3. Hymenoptera. Part 1. Opredeliteli Faune SSSR 119:3-584. (page 555, Revisionary studies with key)
  • Ashmead, W. H. 1905c. A skeleton of a new arrangement of the families, subfamilies, tribes and genera of the ants, or the superfamily Formicoidea. Can. Entomol. 37: 381-384 (page 384, Lasius in Formicinae, Lasiini)
  • Bernard, F. 1967a [1968]. Faune de l'Europe et du Bassin Méditerranéen. 3. Les fourmis (Hymenoptera Formicidae) d'Europe occidentale et septentrionale. Paris: Masson, 411 pp. (page 350, Revisionary studies with key)
  • Bingham, C. T. 1903. The fauna of British India, including Ceylon and Burma. Hymenoptera, Vol. II. Ants and Cuckoo-wasps. London: Taylor and Francis, 506 pp. (page 338, Type-species: Formica nigra, by subsequent designation)
  • Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 50, Lasius in Formicinae, Lasiini)
  • Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 97, Lasius as genus; in Formicinae, Lasiini)
  • Bondroit, J. 1918. Les fourmis de France et de Belgique. Ann. Soc. Entomol. Fr. 87: 1-174 (page 19, Lasius as junior synonym of Formicina)
  • Carpenter, F. M. 1930. The fossil ants of North America. Bull. Mus. Comp. Zool. 70: 1-66 (page 58, Lasius in Formicinae, Formicini)
  • Chapman, J. W.; Capco, S. R. 1951. Check list of the ants (Hymenoptera: Formicidae) of Asia. Monogr. Inst. Sci. Technol. Manila 1: 1-327 (page 201, Lasius in Formicinae, Formicini)
  • Collingwood, C. A. 1978. A provisional list of Iberian Formicidae with a key to the worker caste (Hym. Aculeata). EOS. Rev. Esp. Entomol. 52: 65-95 (page 89, Revisionary studies with key)
  • Collingwood, C. A. 1979. The Formicidae (Hymenoptera) of Fennoscandia and Denmark. Fauna Entomol. Scand. 8: 1-174 (page 92, Revisionary studies with key)
  • Collingwood, C. A. 1982. Himalayan ants of the genus Lasius (Hymenoptera: Formicidae). Syst. Entomol. 7: 283-296 (page 283, Revisionary studies with key)

Crawley, W.C., Baylis, H.A. 1921. Mermis parasitic on ants of the genus Lasius. Journal of the Royal Microscopical Society 257: 353–372.

  • Dalla Torre, K. W. von. 1893. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus. Vol. 7. Formicidae (Heterogyna). Leipzig: W. Engelmann, 289 pp. (page 181, Lasius in Camponotinae)
  • Donisthorpe, H. 1916e. Synonymy of some genera of ants. [concl.]. Entomol. Rec. J. Var. 28: 275-277 (page 276, Lasius as junior synonym of Acanthomyops)
  • Donisthorpe, H. 1927c. British ants, their life history and classification (2nd edn.). London: G. Routledge and Sons, xvi + 436 pp. (page 206, Lasius as junior synonym of Acanthomyops)
  • Donisthorpe, H. 1937c. Generic names, &c., of the British Formicidae. [part]. Entomol. Rec. J. Var. 49: 131-132 (page 132, Lasius as junior synonym of Acanthomyops)
  • Donisthorpe, H. 1943g. A list of the type-species of the genera and subgenera of the Formicidae. [part]. Ann. Mag. Nat. Hist. 11(10): 617-688 (page 655, Lasius in Formicinae, Acanthomyopsini; Lasius as junior synonym of Acanthomyops)
  • Donisthorpe, H. 1946b. Formicidae, Stephens (1829). Entomol. Rec. J. Var. 58: 89-91 (page 91, Lasius as junior synonym of Acanthomyops)
  • Emery, C. 1895l. Die Gattung Dorylus Fab. und die systematische Eintheilung der Formiciden. Zool. Jahrb. Abt. Syst. Geogr. Biol. Tiere 8: 685-778 (page 772, Lasius in Camponotinae, Formicini)
  • Emery, C. 1916a [1915]. Fauna entomologica italiana. I. Hymenoptera.-Formicidae. Bull. Soc. Entomol. Ital. 47: 79-275 (page 239, Lasius as junior synonym of Formicina)
  • Emery, C. 1916b. Formiche d'Italia nuove o critiche. Rend. Sess. R. Accad. Sci. Ist. Bologna Cl. Sci. Fis. (n.s.) 20: 53-66 (page 61, Lasius as junior synonym of Formicina)
  • Emery, C. 1917a. Questions de nomenclature et synonymies relatives à quelques genres et espèces de Formicides (Hym.). Bull. Soc. Entomol. Fr. 1917: 94-97 (page 96, Lasius as junior synonym of Formicina)
  • Emery, C. 1925d. Hymenoptera. Fam. Formicidae. Subfam. Formicinae. Genera Insectorum 183: 1-302 (page 226, Lasius as genus and senior synonym of Donisthorpea; Lasius in Formicinae, Lasiini)
  • Emery, C.; Forel, A. 1879. Catalogue des Formicides d'Europe. Mitt. Schweiz. Entomol. Ges. 5: 441-481 (page 452, Lasius in Camponotinae [Camponotidae])
  • Fabricius, J. C. 1804. Systema Piezatorum secundum ordines, genera, species, adjectis synonymis, locis, observationibus, descriptionibus. Brunswick: C. Reichard, xiv + 15-439 + 30 pp. (page 415, Lasius as genus)
  • Forel, A. 1878c. Études myrmécologiques en 1878 (première partie) avec l'anatomie du gésier des fourmis. Bull. Soc. Vaudoise Sci. Nat. 15: 337-392 (page 374, Lasius in Camponotinae [Camponotidae])
  • Forel, A. 1886h. Études myrmécologiques en 1886. Ann. Soc. Entomol. Belg. 30: 131-215 (page 206, Lasius in Camponotinae, Camponotini [Camponotidae])
  • Forel, A. 1893b. Sur la classification de la famille des Formicides, avec remarques synonymiques. Ann. Soc. Entomol. Belg. 37: 161-167 (page 165, Lasius in Camponotinae, Formicini)
  • Forel, A. 1895b. A fauna das formigas do Brazil. Bol. Mus. Para. Hist. Nat. Ethnogr. 1: 89-139 (page 103, Lasius in Camponotinae, Formicini)
  • Forel, A. 1899h. Formicidae. [part]. Biol. Cent.-Am. Hym. 3: 105-136 (page 127, Lasius in Camponotinae, Formicini)
  • Forel, A. 1912j. Formicides néotropiques. Part VI. 5me sous-famille Camponotinae Forel. Mém. Soc. Entomol. Belg. 20: 59-92 (page 89, Lasius in Camponotinae, Formicini)
  • Forel, A. 1916. Fourmis du Congo et d'autres provenances récoltées par MM. Hermann Kohl, Luja, Mayné, etc. Rev. Suisse Zool. 24: 397-460 (page 460, Lasius as junior synonym of Acanthomyops)
  • Hong, Y.; Wu, J.; Ren, D. 2001. Emendation of Heteromyrmex Zhang, 1989 and Tylolasius Zhang, 1989 (Hymenoptera, Formicoidae [Formicidae]) from the Miocene Shanwang Basin, Shandong Province, China. Geol. Rev. (Beijing) 47: 345-349 (page 348, Lasius senior synonym of *Tylolasius)
  • Janda, M., D. Folková, and J. Zrzavý. 2004. Phylogeny of Lasius ants based on mitochondrial DNA and morphology, and the evolution of social parasitism in the Lasiini (Hymenoptera: Formicidae). Molecular Phylogenetics and Evolution. 33:595-614. doi:10.1016/j.ympev.2004.07.012
  • Jurine, L. 1801. [Untitled.]. In: Panzer, G. W. F. Nachricht von einem neuen entomolischen [sic] Werke, des Hrn. Prof. Jurine in Geneve. Intelligenzbl. Litt.-Ztg. Erlangen 1:161-165. (page 164, Jurine's Lasius was an apid that Morice & Durrant, 1915: 421 proposed as a senior homonym of Lasius Fabricius; which left the Fabr. name in need of a replacement. However, the Jurine name was later suppressed by Act of Commission, leaving the Fabrician v)
  • Kubota, H., Yoshimura, J., Niitsu, S., Shimizu, A. 2019. Morphology of the tentorium in the ant genus Lasius Fabricius (Hymenoptera: Formicidae). Scientific Reports 9: 6722 (DOI 10.1038/s41598-019-43175-w).
  • Kupyanskaya, A. N. 1989. Ants of the subgenus Dendrolasius Ruzsky, 1912 (Hymenoptera, Formicidae, genus Lisius [sic] Fabricius, 1804) of the Far Eastern USSR. Entomol. Obozr. 68: 779-789 (page 779, Revisionary studies with key)
  • Kutter, H. 1977c. Hymenoptera, Formicidae. Insecta Helv. Fauna 6: 1-298 (page 208, Revisionary studies with key)
  • Manendo, T. 2008. A phylogenetic analysis of North American Lasius ants based on mitochondrial and nuclear DNA. M.S. Thesis, University of Vermont, 59 pp.
  • Mayr, G. 1861. Die europäischen Formiciden. Nach der analytischen Methode bearbeitet. Wien: C. Gerolds Sohn, 80 pp. (page 49, Lasius in Formicinae [Formicidae])
  • Mayr, G. 1862. Myrmecologische Studien. Verh. K-K. Zool.-Bot. Ges. Wien 12: 649-776 (page 652, Lasius in Formicinae (in key) [Formicidae])
  • Mayr, G. 1865. Formicidae. In: Reise der Österreichischen Fregatte "Novara" um die Erde in den Jahren 1857, 1858, 1859. Zoologischer Theil. Bd. II. Abt. 1. Wien: K. Gerold's Sohn, 119 pp. (page 8, Lasius in Formicinae [Formicidae])
  • Mayr, G. 1868c. Die Ameisen des baltischen Bernsteins. Beitr. Naturkd. Preuss. 1: 1-102 (page 42, Lasius in Formicinae [Formicidae])
  • Morice, F. D.; Durrant, J. H. 1917. Further notes on the "Jurinean" genera of Hymenoptera, correcting errors and omissions in a paper on that subject published in Trans. Ent. Soc. Lond. 1914, pp. 339-436. Trans. Entomol. Soc. Lond. 1916: 432-442 (page 442, Lasius as junior synonym of Acanthomyops)
  • Seifert, B. 1988a. A revision of the European species of the ant subgenus Chthonolasius (Insecta, Hymenoptera, Formicidae). Entomol. Abh. Staatl. Mus. Tierkd. Dres. 51: 143-180 (page 143, Revisionary studies with key)
  • Seifert, B. 1990. Supplementation to the revision of European species of the ant subgenus Chthonolasius Ruzsky, 1913 (Hymenoptera: Formicidae). Doriana 6(2 271: 1-13 (page 1, Revisionary studies with key)
  • Seifert, B. 1992b. A taxonomic revision of the Palaearctic members of the ant subgenus Lasius s.str. (Hymenoptera: Formicidae). Abh. Ber. Naturkundemus. Görlitz 66(5): 1-67 (page 1, Revisionary studies with key)
  • Tarbinsky, Y. S. 1976. The ants of Kirghizia. Frunze: Ilim, 217 pp. (page 133, Revisionary studies with key)
  • Wahab, A. 1962. Untersuchungen uber Nematoden in den drusen des kopfes der Ameisen (Formicidae). Zeitschrift fur Morphologie und Okologie der Tiere 52: 33–92.
  • Ward, P.S. 2005. A synoptic review of the ants of California (Hymenoptera: Formicidae). Zootaxa 936: 1-68 (page 13, Acanthomyops status rev. returned to status as subgenus of Lasius)
  • Wheeler, G. C.; Wheeler, J. 1970b. Ant larvae of the subfamily Formicinae: second supplement. Ann. Entomol. Soc. Am. 63: 648-656 (page 651, Lasius in Formicinae, Formicini)
  • Wheeler, G. C.; Wheeler, J. 1976b. Ant larvae: review and synthesis. Mem. Entomol. Soc. Wash. 7: 1-108 (page 101, Lasius in Formicinae, Formicini)
  • Wheeler, G. C.; Wheeler, J. 1985b. A simplified conspectus of the Formicidae. Trans. Am. Entomol. Soc. 111: 255-264 (page 258, Lasius in Formicinae, Formicini)
  • Wheeler, W. M. 1910b. Ants: their structure, development and behavior. New York: Columbia University Press, xxv + 663 pp. (page 143, Lasius in Camponotinae, Formicini)
  • Wheeler, W. M. 1915i [1914]. The ants of the Baltic Amber. Schr. Phys.-Ökon. Ges. Königsb. 55: 1-142 (page 120, Lasius in Camponotinae, Formicini)
  • Wheeler, W. M. 1916o. Questions of nomenclature connected with the ant genus Lasius and its subgenera. Psyche (Camb.) 23: 168-173 (page 170, 172, Lasius as genus and senior synonym of Donisthorpea; Lasius as junior synonym of Formicina)
  • Wheeler, W. M. 1922i. Ants of the American Museum Congo expedition. A contribution to the myrmecology of Africa. VII. Keys to the genera and subgenera of ants. Bull. Am. Mus. Nat. Hist. 45: 631-710 (page 698, Lasius in Formicinae, Formicini)
  • Wing, M. W. 1968. Taxonomic revision of the Nearctic genus Acanthomyops (Hymenoptera: Formicidae). Cornell University, New York State College of Agriculture, Agricultural Experiment Station, Ithaca, NY, Memoir No. 405. 173 pages.
  • Wilson, E. O. 1955a. A monographic revision of the ant genus Lasius. Bull. Mus. Comp. Zool. 113: 1-201 (page 3, 11, Revision of genus, Lasius as genus; Lasius senior synonym of Donisthorpea)