Pseudonannolene mesai Fontanetti, 2000

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 : 57-58

Pseudonannolene mesai Fontanetti, 2000

Figs 11 , 93– 94 , 163N , 166A , 170D , 178C , 185

Pseudonannolene mesai Fontanetti, 2000: 188 , figs 1–7.

Pseudonannolene mesai – Iniesta & Ferreira 2013b: 366; 2013c: 78.

Diagnosis

Males of P. mesai resemble those of P. curvata sp. nov., P. erikae , and P. bucculenta sp. nov. by having a mesally curving telopodite, but differing from those species by a larger trunk of the telopodite, projected laterad ( Fig. 94D ).

Etymology

Patronym honoring the collector A. Mesa ( Fontanetti 2000).

Material examined

Holotype BRAZIL • ♂; São Paulo, Salesópolis, Estação Biológica de Boracéia ; [-23.633126, -45.882183]; 943 m a.s.l.; Apr. 1984; C.S. Fontanetti leg.; MZSP.

Paratypes (total: 1 ♂, 1 ♀, 1 immature) BRAZIL – São Paulo • 1 ♂, 1 ♀, 1 ♂ immature; same collection data as for holotype; Nov. 1990; A. Mesa and J.A. Diniz-Filho leg.; MZSP .

Other material (total: 2 ♂♂, 7 ♀♀, 8 immatures)

BRAZIL – São Paulo • 1 ♂; Salesópolis, Estação Biológica de Boracéia ; [-23.633126, -45.882183]; 943 m a.s.l.; May 2001; Equipe Biota leg.; IBSP • 1 ♀ immature; same collection data as for preceding; IBSP 1890 • 1 ♂; same collection data as for preceding; IBSP 816 • 2 ♀♀; Cotia, Reserva Florestal do Morro Grande ; [-23.603506, -46.919463]; 798 m a.s.l.; 13–30 Jun. 2002; Equipe Biota leg.; IBSP 2041 • 1 ♂; same collection data as for preceding; IBSP 2039 • 1 ♀; same collection data as for preceding; IBSP 2042 .

Descriptive notes

MEASUREMENTS. 54–60 body rings (1–2 apodous + telson). Males: body length 60.8–61.8 mm; maximum midbody diameter 3.1–3.6 mm. Females: body length 71.6–81.4 mm; maximum midbody diameter 4.6–4.8 mm.

COLOR. Body color brownish grey; head, collum, antennae and legs brownish darker; prozonites anteriorly greyish; metazonites with a medial brown band and a posterior lighter.

HEAD. Antennae long ( Fig. 163N ), just reaching back to end of ring 6 when extended dorsally; antennomeres elongated; relative antennomere lengths 1<2<3>4>5≈6>7. Mandibular cardo with ventral margin narrow. Ommatidial cluster well-developed, elliptical; ca 33 ommatidia in 5 rows.

BODY RINGS. Collum with lateral lobes rounded, with ca 9 striae, slightly curved ectad ( Fig. 93A ). Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae below ozopore. Anterior sterna in midbody rings subrectangular, with 7 transverse striae ( Fig. 170D ).

FIRST LEG-PAIR OF MALES. Coxae (cx) short (less than half of remaining podomere lengths), subtriangular, with the base arched, densely setose mainly on distal region ( Fig. 94A ); prefemoral process (prf) as wide as half of prefemur, subcylindrical, densely setose up to its median region ( Fig. 94B ); remaining podomeres with setae along the mesal region.

SECOND LEG-PAIR OF MALES. Coxa (cx) large and rounded; penis (pn) located at proximal region, rounded, not extended basally ( Fig. 94C ); prefemur compressed dorsoventrally; remaining podomeres setose.

GONOPODS. Gonocoxa (gcx) rounded and elongated, almost twice as long as telopodite, with the base arched; antero-posteriorly slightly flattened ( Fig.94D–F ); with rows of papillae mesally. Seminal groove (sg) curved; arising medially on mesal cavity and terminating apically on the seminal apophysis (sa). Shoulder (sh) inconspicous. Telopodite (tp) large, strongly curved mesad, projected laterad ( Fig. 94D ); solenomere (sl) with small squamous region; apicomesal process (amp) subtriangular; ectal process absent; sa located at mesal portion, slightly visible apically. Internal branch (ib) short and narrow, subtriangular, surrounding basally tp as a shield; ib with setae along its entire margin exceeding apically seminal region of sl ( Fig. 94D–F ).

VULVAE. As typical for the genus. Bursa subtriangular, glabrous ( Fig. 178C ); internal valve subtriangular, with mesal region rounded; operculum narrow; external valve wide, subtriangular.

Distribution

The species occurs in the Atlantic Forest from the coastal region of São Paulo State, Brazil ( Fig. 185 ).

Figures

Fig. 11. Evolution of the processes on solenomere. Mapping on the strict consensus of 27 equally parsimonious trees under implied weighting (k = 4–7). Images of solenomere: red = Pseudonannolene mesai Fontanetti, 2000 (IBSP 816); blue = P. nicolau sp. nov.; green = P. caatinga Iniesta & Ferreira, 2014 (IBSP 2166).

Fig. 93. Pseudonannolene mesai Fontanetti, 2000, ♀ (IBSP 2041), in lateral view. A. Anterior region. B. Posterior region. Scale bars = 1 mm.

Fig. 94. Pseudonannolene mesaiFontanetti, 2000, ♂ (IBSP 1888). 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. 163. Stereoscopic images of antennae of species ofPseudonannolene Silvestri, 1895.A. P. albiventris Schubart, 1952. B. P. anapophysis Fontanetti, 1996. C. P. alata sp. nov. D. P. buhrnheimi Schubart, 1960. E. P. caatinga Iniesta & Ferreira, 2014. F. P. erikae Iniesta & Ferreira, 2014. G. P. fontanettiae Iniesta & Ferreira, 2014. H. P. halophila Schubart, 1949. I. P. inops Brölemann, 1929. J. P. leopoldoi Iniesta & Ferreira, 2014. K. P. longicornis (Porat, 1888). L. P. magna Udulutsch & Pietrobon, 2003. M. P. maritima Schubart, 1949. N. P. mesai Fontanetti, 2000. O. P. microzoporus Mauriès, 1987. Images not to scale.

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. 170. Stereoscopic images of gnathochilarium and anterior sternum of species of Pseudonannolene Silvestri, 1895. A. P. lundi Iniesta & Ferreira, 2015. B. P. magna Udulutsch & Pietrobon, 2003. C. P. maritima Schubart, 1949. D. P. mesai Fontanetti, 2000. E. P. microzoporus Mauriès, 1987. Images not to scale.

Fig. 178. Stereoscopic images of left vulva of species of Pseudonannolene Silvestri, 1895, in oral view. A. P. magna Udulutsch & Pietrobon, 2003. B. P. maritima Schubart, 1949. C. P. mesai Fontanetti, 2000. D. P. microzoporus Mauriès, 1987. E. P. occidentalis Schubart, 1958. F. P. ophiiulus Schubart, 1944. G. P. parvula Silvestri, 1902. H. P. pusilla Silvestri, 1895. I. P. paulista Brölemann, 1902. J. P. robsoni Iniesta & Ferreira, 2014. K. P. rolamossa Iniesta & Ferreira, 2013. L. P. sebastianus Brölemann, 1902. M. P. segmentata Silvestri, 1895. N. P. silvestris Schubart, 1944. O. P. spelaea Iniesta & Ferreira, 2013. Images not to scale.

Fig. 185. Distribution map of the species Pseudonannolene meridionalis Silvestri, 1902, P. mesai Fontanetti, 2000, P. microzoporus Mauriès, 1987, P. occidentalis Schubart, 1958, and P. ophiiulus Schubart, 1944.