Lasiocyano
Lasiocyano is an accepted genus of theraphosid tarantulas established in 2023 by Galleti-Lima, Hamilton, Borges, and Guadanucci. It is currently monotypic, with the sole accepted species Lasiocyano sazimai, which is also the type species by monotypy. The World Spider Catalog records the genus as containing only this single Brazilian species.
The genus was erected as part of a broader phylogenomic reclassification of South American lasiodoriform theraphosids. In that 2023 study, Pterinopelma sazimai was transferred to the new genus Lasiocyano, reflecting both molecular evidence and diagnostic morphology. The authors explicitly derived the generic name from “lasio” meaning hairy and “cyano” meaning blue, in reference to the conspicuous blue iridescent setae of the type species.
In scientific terms, Lasiocyano is best understood as a geographically restricted Brazilian highland theraphosid lineage associated with the Espinhaço Mountain Range, including records from Bahia and Minas Gerais. The 2023 reclassification summarized the species’ distribution as the highlands of the Espinhaço range, while the original and subsequent taxonomic papers place specimens in Chapada Diamantina and Serra do Cipó.
Species Archive Card
Lasiocyano sazimai
Brazilian Blue Tarantula
Photo: Luxe Inverts
Field Note
A brilliantly iridescent Brazilian theraphosid whose blue-violet sheen makes it one of the most visually distinctive New World species in the hobby. In captivity, it is best interpreted as a terrestrial to opportunistic fossorial species that benefits from secure cover, stable substrate, and a calm enclosure layout.
Origin
Brazil — Espinhaço highlands of Bahia and Minas Gerais, including Chapada Diamantina (Andaraí) and Serra do Cipó / Santana do Riacho
Lifestyle
Ground-dwelling theraphosid; generally interpreted as terrestrial to opportunistic fossorial
Adult Size
Approximately 5–6 in DLS
Difficulty
Intermediate
Temperament
Formal behavioral diagnosis is lacking; captive reports often describe it as quick or skittish rather than truly defensive
Natural Habitat
High-elevation campo rupestre with extensive rock outcrops and shallow soils; juveniles have been recorded under rocks around 1,300 m, and the species is associated with montane Espinhaço habitats above roughly 900 m
Brazilian highlands
Iridescent blue
New World
Terrestrial

