Reversopelma spinometatarsi Peñaherrera-R., Mora-Bolaños, Guerrero-Campoverde, León-E., Ríos-Tamayo, Gabriel, Sherwood & Cisneros-Heredia, 2025

Described by Ray Gabriel, Duniesky Ríos Tamayo, Danniella Sherwood, Pedro J. Peñaherrera Romero, Ariel Guerrero-Campoverde, Roberto J. León-E, Diego F. Cisneros-Heredia, Jamie Mora-Bolaños

♀ Female described ♂ Male described

Live specimen © Peñaherrera-R. et al. (2025, fig. 9A) — paratype female ZSFQ-i12215, habitus in life

Type Locality and Records

Type locality

Original Description

Peñaherrera-R., P. J., Mora-Bolaños, J., Guerrero-Campoverde, A., León-E, R. J., Tamayo, D. R., Gabriel, R., Sherwood, D. & Cisneros-Heredia, D. F. (2025). A new species of Reversopelma Schmidt, 2001 from Ecuador, and two new tarantula genera from Argentina, Bolivia, and Colombia (Araneae: Theraphosidae). Arachnology 20 (3): 462-472.

Distribution

Ecuador

Type Locality: ECUADOR: Tiputini Biodiversity Station, 0°38'12"S 76°08'59"W, 230 m, provincia de Orellana

Adult Male Activity

Collection months of 4 adult male specimen records, against the rainfall where they live

Adult males collected

Mean monthly rainfall and temperature 2001–2020 near where these males were collected. MERRA-2 via NASA POWER, for a grid cell averaging 648 m. Wet and dry seasons, from the rainfall at the locality itself. Records span 2 countries (Colombia, Ecuador), so one climate curve cannot describe all of them.

Etymology

The specific epithet is in apposition and refers to the numerous small coarse spines on metatarsus I, the most conspicuous diagnostic character of the species.

Specimen Records (6)

ZSFQ-i20745 ♂ Holotype Ecuador

Tiputini Biodiversity Station, 230 m, Orellana

May 2022 · col. P. Peñaherrera-R. & R. J. León-E.

Holotype male of Reversopelma spinometatarsi

ZSFQ-i12215, ZSFQ-i12211 ♀ Paratype Ecuador

Tiputini Biodiversity Station, 230 m, Orellana

May 2022 · col. P. Peñaherrera-R. & R. J. León-E.

Paratype females of Reversopelma spinometatarsi, same data as the holotype. ZSFQ-i12215 is the described and figured female.

ICN-Ar 11252 ♂ Colombia

Granja Macagual, vereda El Venado, municipio de Florencia, 250 m, Caquetá

March 2004 · col. A. Madrid & E. Cruz

Non-type males of Reversopelma spinometatarsi, catalogued as Cyclosternum by A. Silva & J. Jimenez in August 2004

ICN-Ar 12294 ♂ Colombia

Las Iracas, Playa Guio, San José del Guaviare, 180 m, Guaviare

October 2013 · col. E. Flores and students

Non-type male of Reversopelma spinometatarsi

ICN-Ar 12298 ♂ Colombia

Embalse La Mara, San José del Guaviare, Guaviare

October 2013 · col. E. Flores and students

Non-type male of Reversopelma spinometatarsi

ICN-Ar 2002 ♂ Colombia

Estación Biológica Caparú, Lago Moraira, bajo Río Apaporis, 200 m, Vaupés

col. J. Pinzon

Non-type male of Reversopelma spinometatarsi; collection date not recorded

Genitalia

Spermathecae © Peñaherrera-R. et al. (2025, fig. 7) — paratype female ZSFQ-i12215

Male palp © Peñaherrera-R. et al. (2025, fig. 5) — holotype male ZSFQ-i20745

Taxonomic History

Reversopelma spinometatarsi Peñaherrera-R., Mora-Bolaños, Guerrero-Campoverde, León-E., Ríos-Tamayo, Gabriel, Sherwood & Cisneros-Heredia, 2025
The second species of Reversopelma, and the first with reliable locality data. The type species, R. petersi, was described in 2001 from pet-trade material labelled only “Ecuador or Peru, Pastaza River”; its holotype is in poor condition, missing the right palpal bulb and with the embolus of the left one broken. Because R. spinometatarsi could be described from freshly collected material of both sexes, it supplied the palpal-bulb and spermathecal detail needed to redefine the genus.