Euathlus parvulus ( Pocock 1903 ) 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 : 2406-2407

Euathlus parvulus ( Pocock 1903) , comb. nov.

( Figure 7 )

Phryxotrichus parvulus Pocock 1903, p. 107

Paraphysa parvula: Schmidt 1996a, 2003 , p. 182, fig. 461–463.

Types

Holotype ♂, Chile, V Región Valparaiso, Valparaiso, 160 m asl, (33°05' S, 71°40' W), Coronel Hayes Sadler leg. ( BMNH 1987.7.18.16), examined.

Additional material examined

Chile, July 1925, A. Faz leg., 1 ♂ and 1 ♀ ( MZUSP 10.892 ) ; Chile, A. Faz leg, 1 ♂ and 1 ♀ ( MZUSP 10.889 ) .

Diagnosis

Differs from other Euathlus species by the presence of median sized urticating seta type III, shorter than in other species (see character 41 in the cladistic matrix character set). Male differs from other species by the palpal organ morphology with flat and subequal prolateral keels ( Figure 7A,B ); PI evidently truncated in the middle of the embolus and shorter than PS ( Figure 7C ). Female differs from other species by the shape of the spermathecae ( Figure 7D ) with shorter basis, and both the basal segment and spheroid chamber form an angle equal or greater than 90° (spheroid chamber apicolateral in opposition of the epigastric furrow).

Remarks

We present for the first time the spermathecae of female of E. parvulus ( Figure 7D ).

Figures

Figure 7. Euathlus parvulus comb. nov. (A) palpal organ, prolateral view; (B) palpal organ, retrolateral view; (C) palpal organ, detail of apex showing PI truncated in the middle of the embolus (scale bar = 0.2 mm); (D) spermathecae, dorsal view. PI: prolateral inferior keel, PS: prolateral superior keel. Scale bar = 1mm.