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Chaco tecka
''Chaco tecka'' is a mygalomorph spider of Argentina, named after its type locality: Rio Tecka, Chubut, Argentina.〔Goloboff, Pablo A. "A revision of the South American spiders of the family Nemesiidae (Araneae, Mygalomorphae). Part 1, Species from Peru, Chile, Argentina, and Uruguay. Bulletin of the AMNH; no. 224." (1995).〕 Females can be distinguished from those of other species of ''Chaco'' by the strong and numerous spines on metatarsus IV and by the presence of pseudopreening combs on metatarsi III and IV. From ''C. patagonica'' and ''C. sanjuanina'', females differ also in the patterned cephalothorax and legs. ==Description==
*Female: total length ; cephalothorax length , width ; cephalic region length , width ; fovea width ; OQ length , width ; labium length , width ; sternum length , width . Its cephalic region is convex; the fovea slightly procurved. Labium possesses no cuspules. A serrula is absent; the sternal sigilla being small and shallow; the sternum rebordered. Its cephalothorax is yellowish brown; the legs of the same colour, but lighter; it carries darker spots on its cephalic region, on the retrolateral apex of the femora, middle of patellae, and base of tibiae.〔
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