On Pocock, 1895 (Araneae, Theraphosidae) species and tarantula conservation in Ecuador.

Two novel species of Pocock, 1895 are described from the north-western and central-western slopes of the Cordillera Occidental of the Andes mountain range in Ecuador. The new species are easily differentiated from other congeners of by spermathecae and male palpal bulb morphology and a comparatively distant distribution to the type localities of the geographically nearest known congeners. The diagnosis of Pocock, 1093 is revised and updated, considering the novel species and observations on spermatheca of this species.

Increasing knowledge of Gabriel & Sherwood, 2020 (Araneae, Theraphosidae): general distribution, key to species, and three new species from Ecuador.

Three new species of Gabriel & Sherwood, 2020 are described from south, central, and north-western Ecuador, showing the wide range of distribution that this genus has in Ecuador and its biogeographical provinces. These three new species are easily differentiated from other congeners based on keel morphology of the male palpal bulb. Supplementary information about the locality of Sherwood, Gabriel, Brescovit & Lucas, 2021 is provided, alongside additional data on morphology and some commentaries about the general distribution and biogeography of .

A new species of spider of the genus Simon, 1880 (Araneae, Sparassidae) from the Yasuni Biosphere Reserve, Amazonian lowlands of Ecuador.

We describe a new species of giant crab spider of the genus Simon, 1880 collected in Lowland Evergreen rainforests at the Tiputini Biodiversity Station, Yasuni Biosphere Reserve, Amazonian Ecuador. This new species corresponds to the first record of the genus from Ecuador. Females of the new species of are similar to and .