Euathlus antai, Perafán & Pérez-Miles, 2014

Perafán, Carlos & Pérez-Miles, Fernando, 2014, The Andean tarantulas Euathlus Ausserer, 1875, Paraphysa Simon, 1892 and Phrixotrichus Simon, 1889 (Araneae: Theraphosidae): phylogenetic analysis, genera redefinition and new species descriptions, Journal of Natural History (J. Nat. Hist.) 48 (39 - 40), pp. 2389-2418 : 2401-2402

Euathlus antai sp. nov.

( Figure 3 )

Types

Holotype ♀, Chile, II Región Antofagasta, San Pedro de Atacama, Puritama, high area, around 3200 m asl, 8 February 1997. J.C. Ortíz leg. Type is deposited in the arachnological collection of the Museo de Zoología, Universidad de Concepción , Chile ( MZUC-UCCC 35893 ).

Etymology

The specific epithet is a noun in apposition from an ancient indigenous group that inhabited the Atacama region, known as Likan-Antai or Atacameños. Likan-Antai in Kunza language means likan = people and antai = of this territory. Hence, the name means Euathlus of this territory.

Diagnosis

Females differs from the other Euathlus species by the shape of the spermathecae with two seminal receptacles bifurcated ( Figure 3A ).

Description

Female (holotype). Total length, not including chelicerae, nor spinnerets 32.5, carapace length 14.0, width 13.0. Anterior eye row procurved, posterior row recurved. Eye sizes and interdistances: AME 0.26, ALE 0.44, PME 0.28, PLE 0.41, AME–AME 0.55, AME–ALE 0.26, PME–PME 0.88, PME–PLE 0.15, ALE–PLE 0.30, OQ length 1.87, width 2.11, clypeus 0.26. Fovea slightly recurved width 2.3. Labium length 1.8, width 2.9, with 88 cuspules. Maxillae (right/left) with 101/120 cuspules. Sternum length 6.5, width 6.2. Chelicerae with 8 well-developed teeth on promargin of furrow and 9 small teeth on the proximal area of furrow. Tarsi densely scopulated, scopulae I– IV entire. Metatarsi I scopulated more than a distal half, II scopulated on distal half, III on distal third, IV apically scopulated. Legs and palpal segments lengths in Table 2. Spination: Femora I 1P; II 1 P; III and IV 0; palp 1P. Patellae I– IV and palp 0. Tibiae I 3 V; II 3 V; III 2 V; IV 1 R , 2V; palp 6V. Metatarsi : I 2 V; II 2 V; III 2 P, 2R, 5 V; IV 2 P, 5R, 5V. Tarsi I– IV and palp, 0. Colour (in alcohol): Cephalothorax and legs red-orange, abdomen brown ( Figure 3B,C ). Brown setae on body and legs mixed with longer golden setae. Cephalothorax and chelicerae with grey small setae. Type III and IV setae present; urticating setae gathered in a conspicuous golden patch. PMS well-developed, PLS normal, apical segment digitiform. Spermathecae with two wide bifurcated seminal receptacles with lateral spheroid chamber ( Figure 3A ) .

Male. Unknown.

Figures

Figure 3. Euathlus antai sp. nov. (A) Spermathecae, dorsal view; (B) cephalotorax; (C) abdomen. Scale bar = 1mm.