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...

Review of the Spider Genus Linothele (Mygalomorphae, Dipluridae) from Ecuador—An Exceptional Case of Speciation in the Andes

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Review of the Spider Genus Linothele (Mygalomorphae, Dipluridae) from Ecuador—An Exceptional Case of Speciation in the Andes


Abstract

The genus Linothele (Araneae: Dipluridae) from Ecuador is reviewed. A total of 38 new species are described; from the Andes: L. alausi n. sp. (♀), L. anabellecitae n. sp. (♀♂), L. angamarca n. sp. (♀♂), L. banos n. sp. (♀♂), L. canirasi n. sp. (♀), L. carchi n. sp. (♀), L. cayambe n. sp. (♀♂), L. cuencana n. sp. (♀♂), L. guacamayos n. sp. (♀), L. gualaquiza n. sp. (♀), L. guallupe n. sp. (♀), L. ilinizas n. sp. (♀♂), L. ireneae n. sp. (♀), L. jarrini n. sp. (♀), L. javieri n. sp. (♀), L. kaysi n. sp. (♀), L. lacocha n. sp. (♀), L. lloa n. sp. (♀♂), L. milleri n. sp. (♀♂), L. molleturo n. sp. (♀), L. otokiki n. sp. (♀), L. peguche n. sp. (♀♂), L. podocarpus n. sp. (♀), L. pomona n. sp. (♀), L. pristirana n. sp. (♀♂), L. pseudoquori n. sp. (♀♂), L. rionegro n. sp. (♀♂), L. sigchila n. sp. (♀♂), L. uvalino n. sp. (♀), L. victoria n. sp. (♀), L. yunguilla n. sp. (♀♂); from the Pacific region: L. costenita n. sp. (♀♂), L. troncal n. sp. (♀); and, from the Amazonian region: L. amazonica n. sp. (♀), L. archidona n. sp. (♀), L. condor n. sp. (♀♂), L. jatunsacha n. sp. (♀), L. otoyacu n. sp. (♀♂). All previously known Ecuadorian species are re-illustrated, and the males of L. cavicola, L. pukachumpi, and L. tsachilas are described for the first time. The geographical distribution of the genus Linothele through mainland Ecuador is discussed, and short-range endemic species are proposed. Distribution maps are provided for all species found in Ecuador. Finally, the synonymy of L. megatheloides under L. sericata is rejected.


Dupérré, Nadine, Elicio Tapia, and Jason E. Bond. 2023. "Review of the Spider Genus Linothele (Mygalomorphae, Dipluridae) from Ecuador—An Exceptional Case of Speciation in the Andes" Arthropoda 1, no. 3: 68-341. https://doi.org/10.3390/arthropoda1030010