Allpamayu suyuwixsa Beratz, Ferretti, Chaparro, Ochoa, Allen & West, 2026

Described by Rick C. West, Nelson Ferretti, José A. Ochoa, Juan C. Chaparro, Beratz Matías Joel, Joshua P. Allen

♀ Female described ♂ Male described
Live specimen Live specimen © Beratz et al. (2026, fig. 7A) — holotype male MUBI 121 in life, Maska, Peru. Photo: Josh Allen

Type Locality and Records

Type locality

Original Description

Beratz, M., Ferretti, N., Chaparro, J. C., Ochoa, J. A., Allen, J. P. & West, R. C. (2026). A new endemic genus of tarantula (Theraphosidae, Ischnocolinae) from southern Peru. Zoosystema 48(9): 273-286.

Distribution

Peru

Type Locality: PERU: Maska, Calca province, Cusco department, 3260 m

Adult Male Activity

Collection months of 1 adult male specimen record, against the rainfall where they live

Wet seasonDry seasonWet season19°7°JFMAMJJASOND10137mm0
Adult males collected

Mean monthly rainfall and temperature 2001–2020 near the type locality, Maska, Calca province, Cusco department, 3260 m. MERRA-2 via NASA POWER. Wet and dry seasons, from the rainfall at the locality itself.

Etymology

From Central Quechua <i>suyu</i>, "striped", and <i>wixsa</i>, "abdomen" or "belly" — for the stripes the genus is also named after.

Specimen Records (3)

MUBI 121 ♂ Holotype Peru

Maska, Calca province, 3260 m, Cusco

April 2021 · col. J. Allen

Holotype male of Allpamayu suyuwixsa

MUBI 193, MUBI 194, MUBI 373 ♀ Paratype Peru

Yananpampa (Laguna Pomacanchi), Acomayo province, 3757 m; and Chuquicahuana, Canchis province, 3785 m, Cusco

October 2023 · col. N. Ferretti, J. Chaparro & R. West

Paratype females of Allpamayu suyuwixsa, all collected on 7 October 2023. Some carried a single detached white egg sac 7-15 mm across.

MACN-Ar 46343; MUBI 160 mixed Peru

Inca trail to Machu Picchu near the Wayruro river, 3500 m; and Velille, Chumbivilcas province, 3787 m, Cusco

January 1983 · col. A. Roig; R. Ccahuana & Z. Pumaccahua

Non-type material of Allpamayu suyuwixsa. MACN-Ar 46343 (1 male, 3 females) was collected on the Inca trail in January 1983 — forty-three years before the species was named.

Bibliography (1)

Beratz, M., Ferretti, N., Chaparro, J. C., Ochoa, J. A., Allen, J. P. & West, R. C. (2026). A new endemic genus of tarantula (Theraphosidae, Ischnocolinae) from southern Peru. Zoosystema 48(9): 273-286.