Synotaxus itabaiana, Santos, Adalberto J. & Rheims, Cristina A., 2005

Santos, Adalberto J. & Rheims, Cristina A., 2005, Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil, Zootaxa 937, pp. 1-12 : 9-10

Synotaxus itabaiana n. sp.

Figures 15–18 , 19

Type material. ♂ holotype and ♀ paratype from Serra de Itabaiana , Itabaiana , Sergipe, Brazil, 10°40’S 37°25’W, A.D. Brescovit et al. leg., 14.–20.IX.1999, in IBSP 43379 and IBSP 43380 , respectively. ♀ paratype from Reserva Genética Pacanarí , Almerim, Pará, Brazil, 15.II.2003, D.D. Guimarães leg., in MPEG 357 .

Additional material examined. BRAZIL: Pará: Jurutí, Platô do Rio Jurutí, Igarapé Mutum­Jurutí , 2°36’10.6”S, 56°12’25.8”W, 6.IX.2002, A.B. Bonaldo, 1♀ ( MPEG 439 ) ; ditto, 2°33’07.2”S, 56°13’06.2”W, 12.IX.2002, 1♀ ( MPEG 438 ) ; ditto, 2°36’45.2”S, 56°11’27.5”W, 05.IX.2002, 1♀ ( MPEG 440 ) ; ditto, 2°36’10.6”S, 56°12’25.8”W, 14.IX.2002, 1♀ ( MPEG 441 ) ; Sergipe: Itabaiana , Serra de Itabaiana , 14.–20.IX.1999, A.D. Brescovit et al., 1♂ ( IBSP 43382 ), 1♀ ( IBSP 43381 ).

Etymology. The specific epithet is a noun in apposition taken from the type­locality.

Diagnosis. ♂♂ of S. itabaiana differ from all other Synotaxus species by the large, flattened and granulated paracymbium ( Figs. 15–16 ). ♀♀ present lateral atria on the epigynum ( Fig. 17 ), as S. turbinatus and S. ecuadorensis , but differ by the sub­oval shape of spermathecae ( Fig. 18 ).

Description. ♂ (holotype). Body, palps and legs white. Cephalic region pilose. Ocular area overhanging clypeus, with a short and stout, curved median macrosetae. Legs thin, covered with numerous setae. Abdomen elongated, pointed posteriorly and scarcely covered with setae. Total length 3.6, carapace 1.2 long, 1.0 wide. Patella­tibia I length 5.4, II 3.0, III 1.3, IV 2.6. Abdomen 2.4 long, 0.8 wide. Patellar apophysis bifid, with a large and a short pointed branch. Paracymbium concave in ventral view and with a prolateral branched swelling. TTA with a ventral and an apical process, the latter with a curved, pointed projection ( Figs. 15–16 ).

♀ (paratype). Coloration, body shape and pilosity as in ♂. Total length 5.1, carapace 1.0 long, 1.0 wide. Patella­tibia I length 4.8, II 2.9, III 1.2, IV 2.4. Abdomen 4.0 long, 1.0 wide. Copulatory ducts inconspicuous, apparently absent. Fertilization ducts short and stout. Accessory sacs posteriorly connected to spermathecae ( Fig. 18 ).

Distribution. Northern and northeastern Brazil ( Fig. 19 ).

Figures

FIGURE 19. Geographical distribution records for Synotaxus species: a, S. brescoviti; b, S. bonaldoi; c, S. siolii; d, S. itabaiana; e, S. longicaudatus; f, S. monoceros; g, S. waiwai.

FIGURES 15 – 18. Synotaxus itabaiana n. sp. 15. Male palp, ventral view. 16. Ditto, lateral view. 17. Female epigynum, ventral view. 18. Female internal genitalia, dorsal view. Scales: 0.1 mm.