Joining the dark side: waterfall spiders in subterranean habitats, with the description of a new genus and two new species from Brazil (Araneae: Trechaleidae)

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  Joining the dark side: waterfall spiders in subterranean habitats, with the description of a new genus and two new species from Brazil (Araneae: Trechaleidae) Abstract Trechaleidae is a family of spiders often recognized by its semiaquatic species, but its diversity extends beyond these well-known examples. In this study, we describe Troglotrechalea gen. nov. , a new genus with two novel species, T. faleroae spec. nov. and T. agorai spec. nov. , found exclusively in subterranean habitats within karst formations in central and southeastern Brazil. Both species exhibit pale coloration, but unmodified eyes and legs if compared to other species in the family. The slight degree of troglomorphism, along with their geographic and habitat records, suggests that these species are restricted to hypogean habitats, although they probably move through epigean habitats. Additionally, we report in detail the occurrence of the trechaleid genera Enna O. Pickard-Cambridge, 1897, Heidrunea Brescovi...

A web of canopy discoveries part I (Araneae: Araneidae). New astonishing species of orb-weaving spiders from Ecuador and the first country record of Pozonia Schenkel, 1953

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A web of canopy discoveries part I (Araneae: Araneidae). New astonishing species of orb-weaving spiders from Ecuador and the first country record of Pozonia Schenkel, 1953

Abstract

Two new species from the family Araneidae are described: a new species from the monotypic orb-weaving genus Spinepeira Levi, 1995, Spinepeira erwini sp. nov. (♀), and a new species of Scoloderus Simon, 1887, Scoloderus neilli sp. nov. (♀), are described from the Ecuadorian Amazon. Both species were collected with insecticidal canopy knockdown. Furthermore, herein, we present the first images of Spinepeira’s internal genitalia, and the first country record of Pozonia Schenkel, 1953 is reported with Pozonia bacillifera (Simon, 1897) collected in the canopy of Tiputini in Ecuador.

Díaz-Guevara, D.R. & Dupérré, N. (2025) A web of canopy discoveries part I (Araneae: Araneidae). New astonishing species of orb-weaving spiders from Ecuador and the first country record of Pozonia Schenkel, 1953. Zootaxa, 5660 (4), 587–595. https://doi.org/10.11646/zootaxa.5660.4.9