Pseudonannolene magna Udulutsch & Pietrobon 2003
Creators: name: Iniesta, Luiz Felipe Moretti
name: Bouzan, Rodrigo Salvador
name: Brescovit, Antonio Domingos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Spirostreptida
Pseudonannolenidae
Pseudonannolene
Pseudonannolene magna

description: Pseudonannolene magna Udulutsch & Pietrobon, 2003
Figs 87–88, 163L, 165Q, 170B, 178A, 184; Supp. file 4: Fig. 206D
Pseudonannolene magna Udulutsch & Pietrobon in Fontanetti et al., 2003: 66, figs 1–9.
Diagnosis
Males of P. magna are similar to most species of the genus by having a subtriangular solenomere (Fig. 88D–F), but differing by a mesally situated seminal apophysis (Fig. 88D) and a long, densely setose prefemoral process on the first leg-pair (Fig. 88A).
Etymology
Named after the Latin adjective ‘ magna ’ = ‘large’, ‘huge’. Unspecified in the original description, but likely to be related to the body size of the species.
Material examined
Holotype BRAZIL • ♂ [fragmented]; São Paulo, Valinhos, Serra dos Cocais; [-23.024107, -46.894115]; Mar. 2000; F.B. Britto leg.; MZSP 941.
Paratypes (total: 3 ♂♂, 4 ♀♀) BRAZIL • 3 ♂♂, 4 ♀♀; same collection data as for holotype; MZSP 941.
Other material (total: 2 ♂♂, 7 ♀♀, 8 immatures)
BRAZIL – São Paulo • 2 ♂♂, 7 ♀♀, 1 ♀ immature, 7 immatures; Valinhos, Serra dos Cocais; [-23.023664, -46.893820]; 807 m a.s.l.; Mar. 2001; Pietrobon leg.; MZSP.
Descriptive notes
MEASUREMENTS. 60–62 body rings (1 apodous + telson). Males: body length 84 mm; maximum midbody diameter 4 mm. Females: body length 86 mm; maximum midbody diameter 4 mm.
COLOR. Body color greyish; head, collum, antennae, and legs darker; prozonites greyish anteriorly; metazonites with a reddish posterior band.
HEAD. Antennae long (Fig. 163L), just reaching back to the end of ring 6 when extended dorsally; antennomeres elongated; relative antennomere lengths 1<2<3>4>5<6>7. Mandibular cardo with narrow ventral margin. Ommatidial cluster well-developed, elliptical; ca 30 ommatidia in 5 rows.
BODY RINGS. Collum with lateral lobes rounded, with ca 7 striae, curved mesad (Fig. 87A). Very faint constriction between prozonites and metazonites; prozonites smooth; metazonites laterally with transverse striae above ozopores. Anterior sterna in midbody rings subrectangular, with shallow transverse striae (Fig. 170B).
FIRST LEG-PAIR OF MALES. Coxae (cx) short, subtriangular, with the base arched, densely setose, mainly on distal region (Fig. 88A); prefemoral process (prf) elongated and as wide as half of prefemur, subcylindrical, slightly curved ectad, densely setose up to its median region (Figs 88B, 206D).
SECOND LEG-PAIR OF MALES. Coxa (cx) large and subrectangular; penis (pn) located at proximal region, rounded, not extended basally (Fig. 88C); prefemur compressed dorsoventrally; remaining podomeres setose.
GONOPODS. Gonocoxa (gcx) elongated, rectangular-shaped, with the base slightly arched; flattened antero-posteriorly (Fig. 88D–F); with rows of papillae mesally. Seminal groove (sg) slightly curved; arising medially on mesal cavity and terminating apically on the seminal apophysis (sa). Shoulder (sh) subtriangular. Telopodite (tp) less wide than half of gcx (Fig. 88D); solenomere (sl) with apicomesal process (amp) subtriangular; ectal process absent; sa located at mesal portion, visible apically. Internal branch (ib) subtriangular, surrounding base of tp as a shield; ib with setae along its entire margin exceeding apically seminal region of sl (Fig. 88D–F).
VULVAE. As typical for the genus. Bursa subtriangular, glabrous (Fig. 178A); internal valve subtriangular, with mesal region rounded; operculum narrow, slightly curved ectad, constricted medially; external valve wide, subtriangular.
Distribution
Known only from the type locality Serra dos Cocais, Valinhos, state of São Paulo, Brazil (Fig. 184).
description: Published as part of 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), pp. 1-312 in European Journal of Taxonomy 867 (1) on pages 53-54, DOI: 10.5852/ejt.2023.867.2109, http://zenodo.org/record/7891021