Taxonomic revision and morphology of the trapdoor spider genus Actinopus (Mygalomorphae: Actinopodidae) in Argentina

RÍOS TAMAYO, DUNIESKY; GOLOBOFF, PABLO A.

BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY

AMER MUSEUM NATURAL HISTORY

Lugar: New York; Año: 2018

0003-0090

The genus Actinopus Perty, 1833 is revised forArgentina, comprising a total of 23 species. The female of A. insignis (Holmberg, 1881) is described for the first time; thespecies is found in Northern Buenos Aires, Southern Santa Fe, and Uruguay. Thefemale of A. longipalpis (Koch 1842),previously known only from the male type from Uruguay, is described for thefirst time, and the species is newly cited for Argentina (Entre Ríos).  Twenty-one new species are recognized,described and illustrated. Thirteen of the new species are based on males andfemales (A. reycali sp. nov. fromJujuy and Salta; A. clavero sp. nov.from Córdoba; A. szumikae sp. nov.from Córdoba, Southern Buenos Aires, Santa Fe and Corrientes; A. coylei sp. nov. from Salta andSantiago del Estero, A. argenteus sp.nov. from Santiago del Estero, Córdoba and Catamarca, A. ramirezi  sp. nov. fromMisiones, A. patagonia sp. nov. fromChubut, La pampa, Río Negro and Southern BuenosAires, A. gerschiapelliarum sp. nov.from Córdoba, Northern Buenos Aires, Southern Santa Fe, Northern La Pampa andCanelones in Uruguay, A. pampa sp.nov. from La Pampa, A. septentrionalissp. nov. from Salta, Tucumán, Catamarca and Formosa, A. taragui sp. nov. from Corrientes, Chaco and Misiones, A. tristiabysterni sp. nov. from Córdoba, A. casuhati sp. nov. from Southern Buenos Aires). Two of the newspecies described are based on females only (A. catalanoi sp. nov. and A.indiamuerta sp. nov. from Tucumán); and the remaining six on males (A. puelche sp. nov. from Southern BuenosAires and Uruguay, A. cordobensis sp.nov. from San Luis and Córdoba, A. magnussp. nov. from Córdoba, A. ariasi sp.nov. from Formosa, A. palmar sp. nov.from Entre Ríos, and A. balcarce sp.nov. from Southern Buenos Aires). New morphological characters that can helpsolve phylogenetic relationships within the genus are described. A dichotomouskey for all the species from Argentina is provided, as well as maps of theknown geographic distribution for all the species. Three of the species treatedhere (A. gerschiapelliarum, A. puelche, and A. insignis) are recorded also for Uruguay.