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Ito, F.; Billen, J. P. J. 1998. Larval hemolymph feeding and oophagy: behavior of queens and workers in the primitive ponerine ant Prionopelta kraepelini (Hymenoptera, Formicidae). Belgian Journal of Zoology 128:201-209.
Ito, F.; Hashim, R.; Mizuno, R.; Billen, J. 2022. Notes on the biology of Protanilla sp. (Hymenoptera, Formicidae) collected in Ulu Gombak, Peninsular Malaysia. Insectes Sociaux 69:13-18. 10.1007/s00040-021-00839-z PDF

Notes: Published "online early" 27 Oct 2021, without volume number or final pagination.

Ito, F.; Higashi, S. 1990. Temporary social parasitism in the enslaving ant species Formica sanguinea Latreille: an important discovery related to the evolution of dulosis in Formica ants. Journal of Ethology 8:33-35.
Ito, F.; Luong, P. T. H.; Yamane, S. 2023. Specialized predation on arthropod eggs in the myrmicine ant Calyptomyrmex rectopilosus collected in northern Vietnam, with a description of new species of Calyptomyrmex from Bogor, West Java, Indonesia. Tropics 32 (2):65-72. 10.3759/tropics.MS22-08 PDF
Ito, F.; Nguyen, D. A.; Eguchi, K.; Toyota, A.; Billen, J. 2020. Colony composition, queen behavior, specialized predation on millipedes, and exocrine glands in the ponerine ant Myopias conicara Xu, 1998 (Hymenoptera: Formicidae). Entomologist's Record and Journal of Variation -:1-10. [online early] 10.1111/ens.12406 PDF
Ito, F.; Touyama, Y.; Gotoh, A.; Kitahiro, S.; Billen, J. 2010. Thelytokous parthenogenesis by queens in the dacetine ant Pyramica membranifera (Hymenoptera: Formicidae). Naturwissenschaften 97:725-728. PDF

Notes: Published online: 16 June 2010

Ito, F.; Yamane, S. 2014. Reproduction by ergatoid queens in the myrmicine ant Monomorium brocha (Bolton) (Hymenoptera: Formicidae) in West Java, Indonesia, with a description of the male. Asian Myrmecology 6:105-113. PDF
Ito, F.; Yamane, S. 2020. Behavior of the queen of Leptanilla clypeata Yamane et Ito collected in the Bogor Botanical Gardens, West Java, Indonesia (Hymenoptera; Formicidae), with a note on colony composition and a description of the ergatoid queen. Asian Myrmecology 12:7 pp. e012004. 10.20362/am.012004 PDF

Notes: Leptanilla clypeata ergatoid queen description

Ito, F.; Yamane, S.; Eguchi, K.; Noerdjito, W. A.; Erniwati; Kahono, S. 2024. Ant species diversity (Hymenoptera: Formicidae) in the Purwodadi Botanical Gardens, East Java, Indonesia. Treubia 51 (1):85-100. 10.14203/treubia.v51i1.4759 PDF
Ito, F.; Yamane, S.; Eguchi, K.; Noerdjito, W. A.; Kahono, S.; Tsuji, K.; Ohkawara, K.; Yamauchi, K.; Nishida, T.; Nakamura, K. 2001. Ant species diversity in the Bogor Botanic Garden, West Java, Indonesia, with descriptions of two new species of the genus Leptanilla (Hymenoptera, Formicidae). Tropics 10:379-404. PDF