New insights into maternal care and juvenile dispersal in Pterinopelma roseum (Araneae: Theraphosidae)

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  New insights into maternal care and juvenile dispersal in Pterinopelma roseum (Araneae: Theraphosidae) Abstract Tarantulas (Theraphosidae) exhibit a wide diversity of reproductive behaviors, yet many aspects of their natural history, particularly those related to maternal care and juvenile dispersal, remain poorly known. Pterinopelma roseum is a species distributed in southern Brazil and northeastern Argentina for which information on reproductive biology is limited. The aim of this study was to document maternal care, egg sac composition, and juvenile dispersal through the monitoring of a female collected together with its egg sac in Misiones Province, Argentina. The female was maintained under controlled laboratory conditions and observed daily until juvenile dispersal. During the incubation period, the female actively protected the egg sac, remaining in contact with it most of the time and displaying defensive behaviors when disturbed, while continuing to feed regularly. The e...

A new species of Linothele Karsch 1879 from Panama (Araneae: Mygalomorphae: Dipluridae)

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A new species of Linothele Karsch 1879 from Panama (Araneae: Mygalomorphae: Dipluridae)

Abstract 


A new species of Dipluridae Simon 1889, Linothele darien n. sp., is described from Panama. This is the first Linothele Karsch 1879 species described for the continental part of Central America and the second outside South America. Linothele darien n. sp. is compared to L. megatheloides Paz & Raven 1990 and L. sericata (Karsch 1879), two similar species from Colombia. Also, a discussion about the specimens from Panama studied and identified as L. megatheloides by N. Paz is included.

Wermelinger-Moreira, G., Castanheira, P. de S. & Baptista, R. L. C. (2024b). A new species of Linothele Karsch 1879 from Panama (Araneae: Mygalomorphae: Dipluridae). Acta Arachnologica 73(2): 95-101. doi:10.2476/asjaa.73.95 18173