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Pearson, B. 1982. The taxonomic status of morphologically-anomalous ants in the Lasius niger/Lasius alienus taxon. Insectes Sociaux 29:95-101.

Pearson, B. 1983. The classification of morphologically intermediate ants in the Lasius alienus/Lasius niger taxon. Further observations. Insectes Sociaux 30:100-105.

Pearson, B. 1984 ("1983"). Hybridisation between the ant species Lasius niger and Lasius alienus: the genetic evidence. Insectes Sociaux 30:402-411.

Pearson, B.; Child, A. R. 1980. The distribution of an esterase polymorphism in macrogynes of Myrmica rubra Latreille. Evolution 34:105-109.

Pedraza, L.; Fernández, F. 2019. Género Crematogaster. Capítulo 28. Pp. 889-897 in: Fernández, F.; Guerrero, R. J.; Delsinne, T. (eds.) 2019d. Hormigas de Colombia. Bogotá: Universidad Nacional de Colombia, 1198 pp. PDF

Peeters, C. 1984. Could the queenless ant Ophthalmopone berthoudi re-evolve a reproductive caste from its fertile workers? [Abstract.]. P. 515 in: XVII International Congress of Entomology 1984. Abstract Volume. Hamburg, Federal Republic of Germany, August 20-26, 1984. Hamburg: XVII International Congress of Entomology, 960 pp.

Peeters, C. 1987. The diversity of reproductive systems in ponerine ants. Pp. 253-254 in: Eder, J.; Rembold, H. (eds.) 1987. Chemistry and biology of social insects. München: Verlag J. Peperny, xxxv + 757 pp.

Peeters, C. 1991a. The occurrence of sexual reproduction among ant workers. Biological Journal of the Linnean Society 44:141-152.

Peeters, C. 1991b. Ergatoid queens and intercastes in ants: two distinct adult forms which look morphologically intermediate between workers and winged queens. Insectes Sociaux 38:1-15.

Peeters, C. 1993. Monogyny and polygyny in ponerine ants with or without queens. Pp. 234-261 in: Keller, L. (ed.) 1993. Queen number and sociality in insects. Oxford: Oxford University Press, 451 pp. PDF

Peeters, C. 1997. Morphologically "primitive" ants: comparative review of social characters, and the importance of queen-worker dimorphism. Pp. 372-391 in: Choe, J. C.; Crespi, B. J. (eds.) 1997. The evolution of social behavior in insects and arachnids. Cambridge: Cambridge University Press, xiii + 541 pp.

Peeters, C. 1998. Caste divergence and reproduction in ponerine ants. [Abstract.]. P. 368 in: Schwarz, M. P.; Hogendoorn, K. (eds.) 1998. Social insects at the turn of the millennium. Proceedings of the XIII International Congress of IUSSI. Adelaide, Australia. 29 December 1998 - 3 January 1999. Adelaide: XIII Congress of IUSSI, 535 pp.

Peeters, C.; Billen, J. P. J. 1991. A novel exocrine gland inside the thoracic appendages ('gemmae') of the queenless ant Diacamma australe. Experientia (Basel) 47:229-231.

Peeters, C.; Billen, J. P. J.; Hölldobler, B. 1992. Alternative dominance mechanisms regulating monogyny in the queenless ant genus Diacamma. Naturwissenschaften 79:572-573.

Peeters, C.; Crewe, R. M. 1985. Worker reproduction in the ponerine ant Ophthalmopone berthoudi: an alternative form of eusocial organization. Behavioral Ecology and Sociobiology 18:29-37. PDF

Peeters, C.; Crewe, R. M. 1986. Queenright and queenless breeding systems within the genus Pachycondyla (Hymenoptera: Formicidae). Journal of the Entomological Society of Southern Africa 49:251-255.

Peeters, C.; Crewe, R. M. 1987. Foraging and recruitment in ponerine ants: solitary hunting in the queenless Ophthalmopone berthoudi (Hymenoptera: Formicidae). Psyche (Cambridge) 94:201-214. PDF

Peeters, C.; Crozier, R. H. 1989 ("1988"). Caste and reproduction in ants: not all mated egg-layers are "queens". Psyche (Cambridge) 95:283-288.

Peeters, C.; Higashi, S. 1989. Reproductive dominance controlled by mutilation in the queenless ant Diacamma australe. Naturwissenschaften 76:177-180.

Peeters, C.; Hölldobler, B. 1992. Notes on the morphology of the sticky "doorknobs" of larvae in an Australian Hypoponera sp. (Formicidae; Ponerinae). Psyche (Cambridge) 99:23-30.

Peeters, C.; Hölldobler, B. 1995. Reproductive cooperation between queens and their mated workers: the complex life history of an ant with a valuable nest. Proceedings of the National Academy of Sciences of the United States of America 92:10977-10979.

Notes: Reproductive biology of Harpegnathos saltator.

Peeters, C.; Ito, F. 2001. Colony dispersal and the evolution of queen morphology in social Hymenoptera. Annual Review of Entomology 46:601-630.

Peeters, C.; Ito, F.; Gobin, B.; Fannes, W.; Billen, J. 1998. Queen-worker divergence in the spermathecae of ponerine and myrmeciine ants. [Abstract.]. P. 369 in: Schwarz, M. P.; Hogendoorn, K. (eds.) 1998. Social insects at the turn of the millennium. Proceedings of the XIII International Congress of IUSSI. Adelaide, Australia. 29 December 1998 - 3 January 1999. Adelaide: XIII Congress of IUSSI, 535 pp.

Peeters, C.; Molet, M.; Lin, C.-C.; Billen, J. 2017. Evolution of cheaper workers in ants: a comparative study of exoskeleton thickness. Biological Journal of the Linnean Society 121 (3):556-563. 10.1093/biolinnean/blx011 PDF

Peeters, C.; Wiwatwitaya, D. 2014. Philidris ants living inside Dischidia epiphytes from Thailand. Asian Myrmecology 6:49-61. PDF

Penev, S.; Ronchetti, G. 1965. Ricerche sulla distribuzione delle formiche del gruppo Formica rufa nella Bulgaria nord-orientale. Collana Verde 16:305-311.

Peng, J.; Liu, Y. (eds.) 1992. Iconography of forest insects in Hunan, China. Hunan: Hunan Scientific and Technical Publishing House, 1473 pp.

Penick, C.A.; Ebie, J.; Moore, D. 2014. A non-destructive method for identifying the sex of ant larvae. Insectes Sociaux 61:51-55. 10.1007/s00010-013-0323-5 PDF

Notes: Larva genital imaginal discs

Penzig, O. 1895 ("1894"). Note di biologie vegetale. I. Sopra una nuova pianta formicaria d'Africa (Stereospermum dentatum Rich.). Malpighia 8:466-471. PDF