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Matriphagy in the Neotropical Pseudoscorpion Paratemnoides nidificator (Balzan 1888) (Atemnidae)

Everton Tizo-Pedroso and Kleber Del-Claro
The Journal of Arachnology
Vol. 33, No. 3 (2005), pp. 873-877
Stable URL: http://www.jstor.org/stable/4129893
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Matriphagy in the Neotropical Pseudoscorpion Paratemnoides nidificator (Balzan 1888) (Atemnidae)
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Abstract

We studied the natural history and social behavior of Paratemnoides nidificator (Balzan 1888) in a tropical savanna system. Females were responsible for all nymphal care. We observed, for the first time in pseudoscorpions, the occurrence of matriphagy behavior by the offspring. During conditions of food deprivation, the mother went out of the nest and passively awaited the protonymphs' attack, not reacting to the capture nor to the nymphs feeding on her body. We suggest that this extreme form of parental care, matriphagy, can reduce cannibalism among protonymphs and facilitate the evolution of social behavior in pseudoscorpions. /// Nós estudamos a história natural e o comportamento social de Paratemnoides nidificator (Balzan 1888) na região dos cerrados. As fêmeas foram responsáveis por todo o cuidado às ninfas. Nós observamos, pela primeira vez em pseudoescorpiões, a ocorrúncia de matrifagia pela prole. Em condições de fome, a mãe deixa o ninho e passivamente espera que as protoninfas a ataquem, não reagindo nem à captura, nem à alimentação das ninfas sobre seu corpo. Nós sugerimos que esta forma extrema de cuidado parental, matrifagia, possa reduzir o canibalismo entre as protoninfas e assim facilitar a evolução de comportamento social em pseudoescorpiões.

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