New records and invasion risk of Stenochrus portoricensis Chamberlin, 1922 (Schizomida: Hubbardiidae) in Brazil

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  New records and invasion risk of Stenochrus portoricensis Chamberlin, 1922 (Schizomida: Hubbardiidae) in Brazil Abstract Stenochrus portoricensis Chamberlin, 1922 is a schizomid native to the Caribbean and Central America and is notable for facultative parthenogenesis and a broad synanthropic distribution. It is widely reported as an exotic species in several regions worldwide, with recognized invasive potential. Here, we expand its known distribution in Brazil by documenting the first records from the state of Mato Grosso and new occurrences in tourist caves in Bahia. We also model the species’ potential distribution in South America using the Maximum Entropy (MaxEnt) algorithm under current and future climate scenarios. The models indicate higher habitat suitability in regions characterized by low annual temperature variation and consistent rainfall patterns, conditions typical of tropical and subterranean environments, and predict range expansion under future climate change, p...

New Species of Toxopsoides (Cycloctenidae: Araneae) from Tasmanian and Queensland Surveys

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New Species of Toxopsoides (Cycloctenidae: Araneae) from Tasmanian and Queensland Surveys

Five new species of the spider genus Toxopsoides Forster & Wilton, 1973 are described from Tasmanian surveys by DPIPWE and Bush Blitz (T. driesseni, sp. nov, T. tarkayna, sp. nov., T. wybalena, sp. nov., T. deux, sp. nov.) and one from an intensive IBISCA survey (T. ibisca, sp. nov.) in southern Queensland. It is suggested that Toxopsoides is transferred to Cycloctenidae with which it shares most characters.

Raven, R. New Species of Toxopsoides (Cycloctenidae: Araneae) from Tasmanian and Queensland Surveys. Preprints 2024, 2024092072. https://www.preprints.org/manuscript/202409.2072/v1