We update the knowledge of the unusual Caponiidae spiders from the West Indies with the description of four new species, and the redescription of Nops blandus (Bryant) including the first description of the female. Specimens previously assigned to N. blandus from Hispaniola and Puerto Rico represents two new species: Nops hispaniola n. sp. and Nops agnarssoni n. sp. respectively; while the distribution of the former is limited to British and U. S. Virgin Islands. The others two new species are Nops finisfurvus n. sp. from British Virgin Islands and Cubanops luquillo n. sp. from Puerto Rico. Female internal genitalia of Nops species are described, photographed and illustrated for the first time.
The genus Decaphora Franganillo, 1931 is revised. Pseudosparianthis variabilis F.O. Pickard-Cambridge, 1900, Pseudosparianthis cubana Banks, 1909 and Thelcticopis pestai (Reimoser, 1939) are transferred to the genus; and P. cubana is considered a senior synonym of the type species, Decaphora trabiformis Franganillo, 1931. In addition, the female of T. pestai and the male of P. variabilis are described for the first time; and a new species, Decaphora kohunlich spec. nov., is described from Mexico and Guatemala.
The monotypic genus Diminutella
gen. n. is proposed to include the type species, Diminutella
cortina
sp. n., described from San Diego de los Baños, based on male and female specimens. This species is amongst the smallest Sparianthinae known to date reaching only 4.4 mm body length. It can be distinguished from other Sparianthinae by the combination of eye arrangement, with anterior eye row recurved, posterior eye row straight, spination pattern of legs I–II, with three ventral pairs on tibiae and one on metatarsi, and by the peculiar genitalia, with male palps bearing a large, laminar, layered conductor that rests within a retrolateral depression in the cymbium, and a female vulva with long copulatory ducts coiled around the stalk of a globose blind ending appendage.
Se describe una nueva especie de Barronopsis Chamberlin et Ivie, 1941, para La Hispaniola. Esta especie fue encontrada en la República Dominicana. Este es el primer registro de la familia Agelenidae y del género Barronopsis para La Hispaniola. Se incluye una breve discusión sobre las relaciones de esta especie con las ya descritas del área antillana.
Se registran por primera vez para la fauna de La Hispaniola las especies y géneros de arañas: Mimetus notius Chamberlin, 1923; Tapinopa bilineata Banks, 1893; Leucauge moerens (O. P.-Cambridge, 1896); Kapogea alayoi (Archer, 1958); Ctenus ottleyi (Petrunkevitch, 1930); Xysticus pellax O. P.-Cambridge, 1894; Megalostrata raptor (L. Koch, 1866); Mazax O. P.-Cambridge, 1898; Orchestina Simon, 1882; Neohannia Mello-Leitão, 1917; Pholcomma Thorell, 1869; Camillina Berland, 1919; Zelotes Gistel, 1848; y Tibellus Simon, 1875. También se presentan nuevas localidades para las especies endémicas: Ochyrocera cachote Hormiga, Álvarez-Padilla et Benjamin, 2007; Trujillina spinipes Bryant, 1948; Lausus pulchellus Bryant, 1948; Eustala bisetosa Bryant, 1948; Larinia minor Bryant, 1945 y el género Cobanus O. P.-Cambridge, 1900. Se discuten brevemente algunos aspectos taxonómicos y biogeográficos de estas especies.
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