Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

The persistent embrace of onychophorans: What determines copulation duration in velvet worms?
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reproductive mechanism
onychophoran mating
mecanismo de reproducción
apareamiento de onicóforos

How to Cite

Monge, J. (2019). The persistent embrace of onychophorans: What determines copulation duration in velvet worms?. Revista De Biología Tropical, (1), Darwin. Retrieved from


In the only onychophorans mating that has been photographed, instead of fleeing, the couple remained together despite being manipulated. Why? The duration of copulation in onychophorans is possibly controlled by the female, larger and stronger than the male, probably with the participation of dopamine and γ-aminobutyric acid. Insemination through the body wall can be a male mechanism to overcome female defenses.

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Bonduriansky, R. (2001). The evolution of male mate choice in insects: a synthesis of ideas and evidence. Biological Reviews, 76(3), 305-339.

Bretman, A., Westmancoat, J. D., & Chapman, T. (2013). Male control of mating duration following exposure to rivals in fruitflies. Journal of Insect Physiology, 59(8), 824-827.

Brockmann, C., Mummert, R., Ruhberg, H., & Storch, V. (1999). Ultrastructural investigations of the female genital system of Epiperipatus biolleyi (Bouvier 1902) (Onychophora, Peripatidae). Acta Zoologica, 80(4), 339-349.

Crickmore, M. A., & Vosshall, L. B. (2013). Opposing dopaminergic and GABAergic neurons control the duration and persistence of copulation in Drosophila. Cell, 155(4), 881-893.

Curach, N., & Sunnucks, P. (1999). Molecular anatomy of an onychophoran: compartmentalized sperm storage and heterogeneous paternity. Molecular Ecology, 8(9), 1375-1385.

Manton, S. M. (1938). Studies on the Onychophora, IV-The passage of spermatozoa into the ovary on Peripatopsis and the early developments of the ova. Philosophical Transactions of the Royal Society B, 228(556), 421-441.

Sherbon, B. J., & Walker, M. H. (2004). A new species of Peripatopsis from South Africa, P. stelliporata, with observations on embryonic development and sperm degradation (Onychophora, Peripatopsidae). Journal of Zoology, 264(3), 295-305.

Siva-Jothy, M. T., & Stutt, A. D. (2003). A matter of taste: direct detection of female mating status in the bedbug. Proceedings of the Royal Society of London B: Biological Sciences, 270(1515), 649-652.

Tait, N. N., & Norman, J. M. (2001). Novel mating behaviour in Florelliceps stutchburyae gen. nov., sp. nov.(Onychophora: Peripatopsidae) from Australia. Journal of Zoology, 253(3), 301-308.

Thornhill, R., & Sauer, K. P. (1991). The notal organ of the scorpionfly (Panorpa vulgaris): an adaptation to coerce mating duration. Behavioral Ecology, 2(2), 156-164.



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