Pseudonannolene tocaiensis Fontanetti, 1996

Iniesta, Luiz Felipe Moretti, Bouzan, Rodrigo Salvador & Brescovit, Antonio Domingos, 2023, A reassessment of the Neotropical genus Pseudonannolene Silvestri, 1895: cladistic analysis, biogeography, and taxonomic review (Spirostreptida: Pseudonannolenidae), European Journal of Taxonomy 867 (1), pp. 1-312 : 90-91

Pseudonannolene tocaiensis Fontanetti, 1996

Figs 132–133 , 166M , 173B , 179B , 189

Pseudonannolene tocaiensis Fontanetti, 1996: 419 , figs 1–3.

Pseudonannolene tocaiensis – Freitas et al. 2004: 38. — Souza et al. 2012: 47. — Iniesta & Ferreira 2013b: 357; 2013c: 78. — Karam-Gemael et al. 2018: figs 2–3. — Gallo & Bichuette 2019: 43; 2020: 36.

Diagnosis

Males of P. tocaiensis resemble those of P. ophiiulus , P. strinatii , and P. sulcatula by having an internal branch shovel-shaped (see Figs 130D , 133D ), but differing by having the first leg-pair with subrectangular coxae, prefemoral process larger than half of prefemur ( Fig. 133B ); solenomere with rounded ectal process ( Fig. 133D–F ).

Etymology

Although unspecified, the name is evidently an adjective referring to the locality where the type material was found, Toca Cave.

Material examined

Holotype BRAZIL • ♂ [fragmented, gonopods missing]; São Paulo, Itirapina, Fazenda da Toca, Toca cave ; [-22.272463, -47.776046]; 776 m a.s.l.; 27 Aug. 1985; C.S. Fontanetti, A. Mesa and F.A.G. Mello leg.; MZSP 942 .

Paratypes (total: 6 ♂♂, 1 ♀) BRAZIL • 6 ♂♂, 1 ♀ [all fragmented]; same collection data as for holotype; MZSP 942 .

Other material (total: 3 ♂♂, 2 ♀♀, 2 immatures)

BRAZIL – São Paulo • 3 ♂♂, 1 ♀, 1 ♂ immature, 1 ♀ immature; Itirapina, Fazenda da Toca, Toca cave ; [-22.2531, -47.8228]; 776 m a.s.l.; 24 Feb. 1989; A. Mesa leg.; MZSP • 1 ♀; Estação Ecológica Itirapina ; [-22.249596, -47.825980]; 764 m a.s.l.; 30 Apr.–5 May 2001; Equipe Biota leg.; IBSP 1935 .

Descriptive notes

MEASUREMENTS. 60 body rings (1 apodous + telson). Males: body length ca 50 mm; maximum midbody diameter 2 mm.

COLOR. Body color faded, but apparently uniform pale brownish; metazonites with a posterior band brown; head, collum, antennae, and legs brownish.

HEAD. Antennae short, just reaching back to end of ring 5 when extended dorsally; relative antennomere lengths 1<2<3>4>5≈6>7. Mandibular cardo with ventral margin narrow. Ommatidial cluster well-developed, elliptical; ca 28 ommatidia in 5 rows.

BODY RINGS. Collum with lateral lobes rounded, with ca 9 shallow striae ( Fig. 132A ). Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae from ca ⅓ length below ozopore. Anterior sterna in midbody rings subrectangular, without transverse striae ( Fig. 173B ).

FIRST LEG-PAIR OF MALES. Coxae (cx) short (less than half of remaining podomere lengths), subrectangular, with the base arched and expanded, densely setose ( Fig. 133A ); prefemoral process (prf) as wide as half of prefemur, subcylindrical, densely setose along the entire ventral region ( Fig. 133B ); remaining podomeres with setae along the mesal region.

SECOND LEG-PAIR OF MALES. Coxa (cx) subrectangular; penis (pn) located at proximal region, rounded, not extended basally ( Fig. 133C ); prefemur compressed dorsoventrally; remaining podomeres setose.

GONOPODS. Gonocoxa (gcx) subtriangular, basally expanded and progressively less wide, with the base arched; antero-posteriorly flattened; with rows of papillae mesally ( Fig. 133D–F ). Seminal groove (sg) straight up to ending of gcx, arising medially on mesal cavity, curved ectad in tp and terminating apically on the seminal apophysis (sa). Shoulder absent. Telopodite (tp) almost as wide as gcx ( Fig. 133D ); solenomere (sl) with apicomesal process (amp) short, slightly subtriangular; ectal process (ep) short, rounded, separating from amp by shallow notch; sa located at mesal portion, not visible apically. Internal branch (ib) shovel-shaped and rounded apically, with horizontal plate; setae restricted to the apical region of ib exceeding seminal region of sl ( Fig. 133D–F ).

VULVAE. As typical for the genus. Bursa subtriangular, glabrous ( Fig. 179B ); internal valve subtriangular; operculum narrow, curved ectad; external valve wide, subtriangular.

Distribution

Known only from the type locality Fazenda da Toca, Itirapina, São Paulo State, Brazil ( Fig. 189 ).

Figures

Fig. 132. Pseudonannolene tocaiensis Fontanetti, 1996, paratype, ♂ (MZSP 942), in lateral view. A. Anterior region. B. Posterior region. Scale bars = 1 mm.

Fig. 133. Pseudonannolene tocaiensis Fontanetti, 1996, paratype, ♂ (MZSP 942). A. First leg-pair. B. Detail of prefemur. C. Second leg-pair. D. Detail of telopodites, in anal view. E. Gonopods, in anal view. F. Gonopods, in oral view. Abbreviations: see Material and methods. Scale bars: A, C, E–F = 0.5 mm; B, D = 0.2 mm.

Fig. 166. Stereoscopic images of midbody legs of species of Pseudonannolene Silvestri, 1895. A. P. mesai Fontanetti, 2000. B. P. microzoporus Mauriès, 1987. C. P. ophiiulus. D. P. parvula Silvestri, 1902. E. P. patagonica Brölemann, 1902. F. P. paulista Brölemann, 1902. G. P. robsoni Iniesta & Ferreira, 2014. H. P. rolamossa Iniesta & Ferreira, 2013. I. P. rugosetta Silvestri, 1897. J. P. silvestris Schubart, 1944. K. P. spelaea Iniesta & Ferreira, 2013. L. P. strinatii Mauriès, 1974. M. P. tocaiensis Fontanetti, 1996. N. P. tricolor Brölemann, 1902. O, P. typica Silvestri, 1895. P. P. urbica Schubart, 1945. Q. P. xavieri Iniesta & Ferreira, 2014. R. P. insularis sp. nov. Images not to scale.

Fig. 173. Stereoscopic images of gnathochilarium and anterior sternum of species of Pseudonannolene Silvestri, 1895. A. P. strinatii Mauriès, 1974. B. P. tocaiensis Fontanetti, 1996. C. P. tricolor Brölemann, 1902. D. P. typica Silvestri, 1895. E. P. urbica Schubart, 1945. Images not to scale.

Fig. 179. Stereoscopic images of left vulva of species of Pseudonannolene Silvestri, 1895, in oral view. A. P. strinatii Mauriès, 1974. B. P. tocaiensis Fontanetti, 1996. C. P. tricolor Brölemann, 1902. D. P. typica Silvestri, 1895. E. P. xavieri Iniesta & Ferreira, 2014. F. P. bucculenta sp. nov. G. P. morettii sp. nov. H. P. insularis sp. nov. I. P. nicolau sp. nov. J. P. granulata sp. nov. K. P. alata sp. nov. L. P. curvata sp. nov. M. P. aurea sp. nov. Images not to scale.

Fig. 189. Distribution map of the species Pseudonannolene tocaiensis Fontanetti, 1996, P. tricolor Brölemann, 1902, P. typica Silvestri, 1895, P. urbica Schubart, 1945, and P. xavieri Iniesta & Ferreira, 2014.

Fig. 130. Pseudonannolene strinatii Mauriès, 1974, ♂ (IBSP 7633). A. First leg-pair. B. Detail of prefemur. C. Second leg-pair. D. Detail of telopodites, in anal view. E. Gonopods, in anal view. F. Gonopods, in oral view. Abbreviations: see Material and methods. Scale bars: A, C, E–F = 0.5 mm; B, D = 0.2 mm.