Boudinot, B. E.; Moosdorf, O. T. D.; Beutel, R. G.; Richter, A. 2021. Anatomy and evolution of the head of Dorylus helvolus (Formicidae: Dorylinae): Patterns of sex- and caste-limited traits in the sausagefly and the driver ant. Journal of Morphology 282:1616-1658. 10.1002/jmor.21410 PDF

Johnson, R. A. 2021. A taxonomic revision of South American species of the seed-harvester ant genus Pogonomyrmex (Hymenoptera: Formicidae). Part II. Zootaxa 5033 (1):1-230. 10.11646/zootaxa.5033.1.1 PDF

Arnol'di, K. V. 1976. [Untitled. New species attributed to K. V. Arnol'di.]. Pp. 88, 103-105 in: Tarbinsky, Y. S. 1976. The ants of Kirghizia. [In Russian.]. Frunze: Ilim, 217 pp. PDF

Consani, M. 1952. [Untitled. New species attributed to M. Consani.]. Pp. 41-42 in: Consani, M.; Zangheri, P. 1952. Fauna di Romagna. Imenotteri - Formicidi. Memorie della Società Entomologica Italiana 31:38-48. PDF

Lewis, J.; Sands, D. 2021. Anonychomyrma inclinata sp. nov. (Hymenoptera: Formicidae): description, biology and interaction with the endangered bulloak jewel butterfly, Hypochrysops piceatus Kerr, Macqueen & Sands, 1969 (Lepidoptera: Lycaenidae). Austral Entomology 60:461-472. 10.1111/aen.12556 PDF

Barrera, C. A.; Sosa-Calvo, J.; Schultz, T. R.; Rabeling, C.; Bacci, M., Jr. 2022. Phylogenomic reconstruction reveals new insights into the evolution and biogeography of Atta leaf-cutting ants (Hymenoptera: Formicidae). Systematic Entomology 47:13-35. 10.1111/syen.12513 PDF

Notes: Published "online early" 3 Sep 2021, without volume number or final pagination.

Espadaler, X. 1997. [Untitled. New species attributed to X. Espadaler.]. Pp. 272-280 in: Cagniant, H.; Espadaler, X. 1997. Les Leptothorax, Epimyrma et Chalepoxenus du Maroc (Hymenoptera: Formicidae). Clé et catalogue des espèces. Annales de la Société Entomologique de France (n.s.)33:259-284. PDF

Cagniant, H. 1997. [Untitled. New species attributed to H. Cagniant.]. Pp. 270-271 in: Cagniant, H.; Espadaler, X. 1997. Les Leptothorax, Epimyrma et Chalepoxenus du Maroc (Hymenoptera: Formicidae). Clé et catalogue des espèces. Annales de la Société Entomologique de France (n.s.)33:259-284. PDF

Heterick, B. E. 2021. A guide to the ants of Western Australia. Part I: Systematics. Records of the Western Australian Museum Supplement 86:245 pp. 10.18195/issn.0313-122x.86.2021.001-245 PDF

Radchenko, A. G.; Proshchalykin, M. Y. 2021. New extinct ant genus (Hymenoptera, Formicidae, Myrmicinae) from late Eocene Rovno amber. Journal of Hymenoptera Research 84:271-282. 10.3897/jhr.84.65238 PDF

Aswaj, P.; Sahanashree, R.; Udayakantha, W. S.; Aniruddha, M.; Priyadarsanan, D. R. 2021. Two new species of doryline ants (Hymenoptera, Formicidae) with 11-segmented antennae from India. ZooKeys 1056:59-72. 10.3897/zookeys.1056.68722 PDF

Yamane, S.; Hosoishi, S.; Syaukani, S. 2021. Taxonomic notes on rattan-inhabting ants of the genus Camponotus (Hymenoptera: Formicidae). Zoosystematica Rossica 30 (2):175-182. 10.31610/zsr/2021.30.2.175 PDF

Fernández, F.; Guerrero, R. J.; Sánchez-Restrepo, A. F. 2021. Systematics and diversity of Neotropical ants. Revista Colombiana de Entomología 47 (1):20 pp. e11082. 10.25100/socolen.v47il.11082 PDF

Fedoseeva, E. B.; Grevtsova, N. A. 2020. Flight muscles degeneration, oogenesis and fat body in Lasius niger and Formica rufa queens (Hymenoptera: Formicidae). Russian Entomological Journal 29 (4):410-420. 10.15298/rusentj.29.4.08 PDF

Matte, A.; Billen, J. P. J. 2021. Flight muscle histolysis in Lasius niger queens. Asian Myrmecology 13:16 pp. e013003. [online early] 10.20362/am.013003 PDF

De Albuquerque, E. Z.; do Prado, L. P.; Andradesilva, J.; De Siqueira, E. L. S.; Sampaio, K. L. D.; Alves, D. L.; Brandão, C. R. F.; Andrade, P. L.; Feitosa, R. M.; Koch, E. B. D.; Delabie, J. H. C.; Fernandes, I.; Baccaro, F. B.; Souza, J. L. P.; Almeida, R. P. S.; Silva, R. R. 2021. Ants of the State of Pará, Brazil: a historical and comprehensive dataset of a key biodiversity hotspot in the Amazon Basin. Zootaxa 5001 (1):1-83. 10.11646/zootaxa.5001.1.1 PDF

González, J. A. 2021. Description of Temnothorax estel sp. nov. (Hymenoptera: Formicidae), with a review of the Iberian species of the sordidulus species-complex. Zootaxa 5005 (2):145–160. 10.11646/zootaxa.5005.2.2 PDF

Makhan, D. 2021. Pheidole soesilae Makhan, 2007 as distinct species (Hymenoptera: Formicidae). University of Sindh Journal of Animal Sciences 5 (2):7-12. PDF

Greer, J. A.; Moreau, C. S. 2022. Phylogenetic analysis and trait evolution of ant cocoons. Insect Systematics & Evolution 53:60-77. 10.1163/1876312X-bja10008 PDF

Notes: Online early publication 20 Jul 2021, without volume number or final pagination.

Somala, N.; Senarat, S.; Para, C.; Jiraungkoorskul, W.; Kaneko, G.; Poonpet, T.; Poolprasert, P. 2020. Systemic organization of Tetraponera rufonigra (Jerdon, 1851) (Hymenoptera: Formicidae): histological observation. Serangga 25 (1):53-67. PDF

Jaitrong, W.; Tokeeree, Y. 2021. A revision of the ant genus Lophomyrmex Emery, 1892 (Hymenoptera: Formicidae: Formicinae) in Thailand and its ecological functions. Thai Journal of Forestry 40 (1):18-33. PDF

Schifani, E.; Giannetti, D.; Csősz, S.; Castellucci, F.; Luchetti, A.; Castracani, C.; Spotti, F. A.; Mori, A.; Grasso, D. A. 2022. Is mimicry a diversification-driver in ants? Biogeography, ecology, ethology, genetics and morphology define a second West-Palaearctic Colobopsis species (Hymenoptera: Formicidae). Zoological Journal of the Linnean Society 194:1424-1450. 10.1093/zoolinnean/zlab035/6323347 PDF

Notes: Published online early 17 Jul 2021, without volume number or final pagination.

Rahman, M. M.; Hosoishi, S.; Ogata, K. 2021. Phylogenetic study and divergence of weaver ant, Oecophylla smaragdina Fabricius in Bangladesh (Hymenoptera: Formicidae). American Journal of Biological and Environmental Statistics 7 (3):57-66. 10.11648/j.ajbes.20210703.11 PDF

Williams, J. L.; Zhang, Y. M.; Lloyd, M. W.; LaPolla, J. S.; Schultz, T. R.; Lucky, A. 2020. Global domination by crazy ants: phylogenomics reveals biogeographical history and invasive species relationships in the genus Nylanderia (Hymenoptera: Formicidae). Systematic Entomology 45:730-744. 10.1111/syen.12423 PDF

Bharti, H.; Dhiman, N.; Bharti, M.; Wachkoo, A. A. 2013. SEM studies on immature stages of Aphaenogaster beesoni Donisthorpe, 1933 (Hymenoptera: Formicidae). Halteres 4:68-78. PDF

Guo, Y.; Shih, C.; Zhou, D.; Ren, D.; Zhao, Y.; Gao, T. 2021. The first worker-queen association for Cretaceous Formicidae: the winged caste of Haidomyrmex cerberus. ZooKeys 1048:69-78. 10.3897/zookeys.1048.66920 PDF

Hosoishi, S.; Yamane, S.; Sokh, H. 2021. A third species of the rare ant genus Rotastruma (Hymenoptera, Formicidae) from Cambodia, with illustrated generic diagnoses and key to species. Deutsche Entomologische Zeitschrift 68 (2):225-233. 10.3897/dez.68.63478 PDF

Klunk, C. L.; Argenta, M. A.; Casadei-Ferreira, A.; Economo, E. P.; Pie, M. R. 2021. Mandibular morphology, task specialization and bite mechanics in Pheidole ants (Hymenoptera: Formicidae). Journal of the Royal Society Interface 18 (179):24 pp. 20210318. 10.1098/rsif.2021.0318 PDF

Notes: Mandible functional morphology

van Elst, T.; Eriksson, T. H.; Gadau, J.; Johnson, R. A.; Rabeling, C.; Taylor, J. E.; Borowiec, M. L. 2021. Comprehensive phylogeny of Myrmecocystus honey ants highlights cryptic diversity and infers evolution during aridification of the American Southwest. Molecular Phylogenetics and Evolution 155: Article 107036:1-12. 10.1016/j.ympev.2020.107036 PDF

Notes: Phylogeny, divergence dating, ancestral state reconstruction

Borowiec, M. L. 2019. Convergent evolution of the army ant syndrome and congruence in big-data phylogenetics. Systematic Biology 68 (4):642-656. 10.1093/sysbio/syy088 PDF

Notes: Dorylinae phylogenomics