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1 August 2017 Field observations of simultaneous double mating in the wolf spider Rabidosa punctulata (Araneae: Lycosidae)
Matthew H. Persons
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Abstract

Males of many species of spider engage in alternative mating tactics that do not involve pre-mating courtship. Here I report field observations of a novel opportunistic mating tactic of the wolf spider Rabidosa punctulata (Hentz, 1844): simultaneous double mating, whereby males that encounter copulating pairs also mount and achieve inseminations concurrently with the first male. On three separate occasions, female R. punctulata were observed mating with two males simultaneously. Males that mate with already copulating females likely receive multiple fitness benefits. It may allow courtship parasitism of other males while also reducing male agonistic interactions, eliminate the need to court or subdue the female, and reduce pre-mating cannibalism risk. If such behavior is common, it may limit sexual selection acting on male courtship displays by reducing the effectiveness of pre-mating female choice while also increasing sperm competition.

Matthew H. Persons "Field observations of simultaneous double mating in the wolf spider Rabidosa punctulata (Araneae: Lycosidae)," The Journal of Arachnology 45(2), 231-234, (1 August 2017). https://doi.org/10.1636/JoA-S-17-002.1
Received: 7 January 2017; Published: 1 August 2017
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KEYWORDS
lycosid
Polygynandry
satellite male
sperm competition
threesome
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