Family: Pycnothelidae Chamberlin, 1917 [urn:lsid:nmbe.ch:spiderfam:0141] Detail
Gen. Chaco Tullgren, 1905 [urn:lsid:nmbe.ch:spidergen:00109] Detail
type Chaco obscura Tullgren, 1905; gender feminine
N.B.: transferred from the Barychelidae to the Ctenizidae by Gerschman & Schiapelli, 1965a: 377 and to the Nemesiidae by Raven, 1985a: 103; placed in the Nemesiidae (Pycnothelinae) by Raven, 1985a: 47, but not included in Pycnothelidae by Opatova et al., 2020: 701; transferred to the Pycnothelidae by Montes de Oca et al., 2022: 11; considered a senior synonym of Neostothis Vellard, 1925 by Raven, 1985a: 103, rejected by Goloboff, 1995: 169.
Transferred to other genera:
Chaco gigas (Vellard, 1925) -- see Neostothis
Chaco ansilta Ferretti, 2014 | m f | Argentina     [urn:lsid:nmbe.ch:spidersp:047401]
Chaco ansilta Ferretti, 2014: 1890, f. 1A-D, 2A-D, 3A-D (Dmf).
Chaco aoni Allegue, Pompozzi & Ferretti, 2024 | m f | Argentina     [urn:lsid:nmbe.ch:spidersp:063370]
Chaco aoni Allegue, Pompozzi & Ferretti, 2024: 309, f. 2A-D, 3A-C, 4A-F, 5A-D, 6A-G (Dmf).
Chaco castanea Montes de Oca & Pérez-Miles, 2013 | m f | Uruguay     [urn:lsid:nmbe.ch:spidersp:046307]
Chaco castanea Montes de Oca & Pérez-Miles, 2013: 78, f. 1A-D, 3A-E (Dmf).
Chaco costai Montes de Oca & Pérez-Miles, 2013 | m f | Uruguay     [urn:lsid:nmbe.ch:spidersp:046308]
Chaco costai Montes de Oca & Pérez-Miles, 2013: 81, f. 2A-E, 4A-E (Dmf).
Chaco melloleitaoi (Bücherl, Timotheo & Lucas, 1971) | m | Brazil     [urn:lsid:nmbe.ch:spidersp:001099]
Neostothis melloleitaoi Bücherl, Timotheo & Lucas, 1971: 127, f. 50-51 (Dm; N.B.: not mentioned by Goloboff, 1995).
Chaco obscura Tullgren, 1905 * | m f | Argentina     [urn:lsid:nmbe.ch:spidersp:001100]
Chaco obscura Tullgren, 1905: 7 (Df).
Chaco obscura Gerschman & Schiapelli, 1965a: 377, f. 5-7 (f).
Chaco obscura Raven, 1985a: 103, f. 126-131 (m).
Chaco obscura Goloboff, 1995: 170, f. 38-40, 146A-G, 147A-F (f, Dm).
Chaco patagonica Goloboff, 1995 | f | Argentina     [urn:lsid:nmbe.ch:spidersp:001101]
Chaco patagonica Goloboff, 1995: 184, f. 37, 156A-G (Df).
Chaco sanjuanina Goloboff, 1995 | m f | Argentina     [urn:lsid:nmbe.ch:spidersp:001102]
Chaco sanjuanina Goloboff, 1995: 181, f. 154A-G (Dmf).
Chaco socos Goloboff, 1995 | m f | Chile     [urn:lsid:nmbe.ch:spidersp:001103]
Chaco socos Goloboff, 1995: 179, f. 136, 153A-E (Dmf).
Chaco tecka Goloboff, 1995 | f | Argentina     [urn:lsid:nmbe.ch:spidersp:001104]
Chaco tecka Goloboff, 1995: 183, f. 155A-F (Df).
Chaco tigre Goloboff, 1995 | m f | Chile     [urn:lsid:nmbe.ch:spidersp:001105]
Chaco tigre Goloboff, 1995: 176, f. 41-42, 135, 149A-F, 150A-F (Dmf).
Chaco tingua Indicatti, Folly-Ramos, Vargas, Lucas & Brescovit, 2015 | m f | Brazil     [urn:lsid:nmbe.ch:spidersp:047746]
Chaco tingua Indicatti et al., 2015: 132, f. 31-62 (Dmf).
Chaco tucumana Goloboff, 1995 | m f | Argentina     [urn:lsid:nmbe.ch:spidersp:001106]
Chaco tucumana Goloboff, 1995: 174, f. 148A-E (Dmf).
Chaco tucumana Allegue et al., 2023b: 4, f. 1A-F, 2A-C (f).
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