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1 December 2010 Natural history of the Iberian solifuge Gluvia dorsalis (Solifuges: Daesiidae)
Martina Hrušková-Martišová, Stano Pekár, Pedro Cardoso
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In this paper we present a detailed study of the natural history of Gluvia dorsalis (Latreille 1817), a representative of the family Daesiidae, the only solifuge species known to occur in southwestern Europe. We studied its distribution, habitat preference, circadian activity, seasonal occurrence, burrowing, predatory and post-mating behavior, prey, fecundity, ontogenesis, and sexual dimorphism. Gluvia dorsalis occurs in lowlands across the entire Iberian Peninsula, preferring grassland or similar open-ground habitats with little summer rain. According to pitfall trap data, the species was active on the surface from May until the beginning of November. It is a nocturnal epigean predator, feeding principally on ants and spiders. However, under laboratory conditions, specimens captured and consumed a variety of arthropods. G. dorsalis seems to hide in underground burrows only when molting, overwintering, or laying eggs. Reproduction occurred in early summer, and females usually produced a single egg clutch containing, on average, 84 eggs, and died soon after. Our results indicate that the G. dorsalis is a biennial species. There was sexual dimorphism in several morphological structures that might be used for sex matching in juvenile instars.

Martina Hrušková-Martišová, Stano Pekár, and Pedro Cardoso "Natural history of the Iberian solifuge Gluvia dorsalis (Solifuges: Daesiidae)," The Journal of Arachnology 38(3), 466-474, (1 December 2010).
Received: 23 November 2009; Published: 1 December 2010
sexual dimorphism
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