Actinopus longipalpis C. L. Koch, 1842

Duniesky, Rios-Tamayo, 2019, Four new species of Actinopus (Mygalomorphae: Actinopodidae) from Uruguay, Zootaxa 4624 (4), pp. 523-538 : 529

publication ID 10.11646/zootaxa.4624.4.5

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Actinopus longipalpis C. L. Koch, 1842


Actinopus longipalpis C. L. Koch, 1842 View in CoL

( Figs. 4 View FIGURE 4 , 5 View FIGURE 5 , 10 View FIGURE 10 )

Actinopus longipalpis C.L. Koch 1842: 102 View in CoL , fig. 754l; Ríos-Tamayo & Goloboff, 2018: 49 View Cited Treatment , figs 23A–I, 24A–D, 44.

Type material: Uruguay: Montevideo [34°52′S 56°10′W]: Holotype ♂ ( ZMB Kat. Nr. 2107), examined. GoogleMaps

Other material examined: Uruguay: Artigas: Arroyo Tres Cruces [30°16′S 57°11′W], 15 February 1965, D. Robayna, 1♂ ( MNHN 621 View Materials ) GoogleMaps ; Arroyo Tamanduá [30°28’S 56°33’W], 20 May 1872, L.C. de Zolessi & Gonzalez-Olazar, 1♀ ( MNHN 308 View Materials ) GoogleMaps . Argentina: Entre Ríos: Rosario del Tala [32°18’S 59°08’W], no date, Buero, 1♂ (MACN- Ar. 27099) GoogleMaps ; San José [32°12’S 58°13’W], January 1989, A. Oliva, 1♂ (MACN-Ar 27096) GoogleMaps .

Diagnosis. The female of A. longipalpis differs from those of all other species in Uruguay by the shape of their spermathecae ( Fig. 5D View FIGURE 5 ) being wide basally, with a well truncated fundus, concave dorsally with external lobes projected perpendicular to the duct (similar to A. argenteus ; A. casuhati and A. gerschiapelliarum from Argentina). Females differ from those of A. argenteus and A. casuhati by the smaller number of retrolateral spines on tibia II ( Fig. 5C View FIGURE 5 ) and from A. gerschiapelliarum by the form and shape of their spermathecae. Males can be differentiated from all other species by the thick copulatory bulb thick, with the embolus arising apically ( Fig. 4 View FIGURE 4 G–I); and a low number of retrolateral spines on tibia II ( Fig. 4F View FIGURE 4 ), and from those of A. pampa and A. argenteus by the abdomen with a brown dorsum.

Description. See Ríos-Tamayo & Goloboff 2018, figs 23A–I, 24A–D.

Distribution: Northern Uruguay and northern of Argentina (Entre Ríos province), ( Fig.10 View FIGURE 10 ). The type locality “Montevideo” seems be just the default shipping port (see Ríos-Tamayo & Goloboff 2018, p. 52).


Museum für Naturkunde Berlin (Zoological Collections)














Actinopus longipalpis C. L. Koch, 1842

Duniesky, Rios-Tamayo 2019

Actinopus longipalpis C.L. Koch 1842: 102

Rios-Tamayo, D. & Goloboff, P. A. 2018: 49
Koch, C. L. 1842: 102
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