1.1 Acanthoscurria cordubensis 2 1/2 – 3″


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).

Acanthoscurria cordubensis (yellow markers) is sympatric with Acanthoscurria chacoana (red markers). Redrawn from [1].

The greater region occupied by A. cordubensis corresponds to Gran Chaco, semi-arid scrubland in the rain shadow of the Andes, covering 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, but mostly in Bsh–arid steppe, hot.

‘Chaco’ derives from the Quechua word chaqu, meaning ‘hunting land.’ Chaco merges with Pampas to the south, an extensive grassland plain receiving half as much rain, 10-20 inches/year, similar to Los Angeles (14.93 inches/year).

The pairs 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.

[1] 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).

Additional information

Weight 0.01 lbs
Dimensions 1.0 × 0.5 × 0.5 in