The genus Acanthoscurria was introduced in 1842 with the type species A. geniculata. Since then, Acanthoscurria spp. have been found in other parts of South America, well out of the rainforest, as far south as Argentina. The most recent Argentinian introduction was A. belterrensis (2014), the first, Acanthoscurria cordubensis (1894). The name cordubensis presumably comes from the city or province of Córdoba, in the southern range of A. cordubensis (below, left).
The greater region occupied by A. cordubensis corresponds to the Gran Chaco, a semi-arid scrubland covering vast expanses of poorly draining floodplain in northern Argentina and its neighbors. Depending on the resource, exact borders vary. Rainfall west-to-east varies from 20-50 inches/year, with low-to-medium tree cover westward, increasing eastward. Comparison of the distribution map (left) with climatic zones shows A. cordubensis spread across a few zones.
The name ‘Chaco’ derives from the Quechua word chaqu, meaning ‘hunting land.’ Further south, Chaco merges with Pampas, an extensive grassland plain receiving half as much rain, 10-20 inches/year (roughly the same as southern California).
The females offered on this page were raised here from spiderlings captive bred in Germany, imported a few years ago. The photo above shows one of the females, recently molted. As with many New World terrestrials, post-molt dark gives way to brown in the pre-molt instar.
 Lic. Nelson E. Ferretti (2012). Biogeografía histórica y diversidad de arañas Mygalomorphae de Argentina, Uruguay y Brasil: énfasis en el arco peripampásico. Trabajo de tesis doctoral. Trabajo de tesis doctoral. UNIVERSIDAD NACIONAL DE LA PLATA FACULTAD DE CIENCIAS NATURALES Y MUSEO. Centro de Estudios Parasitológicos y de Vectores CEPAVE (CCT- CONICET- La Plata) (UNLP).