Pseudonannolene albiventris Schubart, 1952

Figs 41–43, 163A, 167A, 177A, 180; Supp. file 4: Figs 218D, 219A

Pseudonannolene albiventris Schubart, 1952: 408, figs 5–8.

Pseudonannolene albiventris – Jeekel 2004: 88. — Gallo & Bichuette 2017: 4; 2020: 36.

cf. Pseudonannolene albiventris – Gallo & Bichuette 2017: 6, figs 4f, 5f, 9h.

Diagnosis

Males of P. albiventris resemble those of P. caulleryi Brölemann, 1929 and P. mesai Fontanetti, 2000 by having a large trunk of the telopodite (Fig. 42D–F), but differing by the subrectangular coxae on the first leg-pair (Fig. 42A); suboval penis (Fig. 42C); solenomere with short and rounded ectal process (Fig. 42D–F).

Etymology

Named after the Latin adjective ‘ albus ’ = ‘white’, plus the masculine noun ‘ venter ’, referring to the whitish ventral region of the body rings (Schubart 1952).

Material examined

Holotype BRAZIL • ♂ [gonopods, gnathochilarium, first and second leg-pair on microscope slides]; São Paulo, Analândia, Fazenda Nova América; [-22.129298, -47.662635]; 665 m a.s.l.; 7 Mar. 1944; O. Schubart leg.; MZSP.

Paratypes (total: 3 ♂♂, 1 ♀, 1 immature) BRAZIL • 1 ♂; same collection data as for holotype; MZSP 1008 • 2 ♂♂, 1 ♀, 1 immature; same collection data as for holotype; MZSP .

Other material (total: 12 ♂♂, 16 ♀♀, 23 immatures)

BRAZIL – São Paulo • 1 ♂, 1 ♀; same collection data as for holotype; MZSP 1007 • 1 ♂; same collection data as for holotype; MZSP 1008 • 2 ♂♂, 1 ♀, 1 ♀ immature; same collection data as for holotype; MZSP • 1 ♂; Piracicaba; [-22.735152, -47.647892]; 532 m a.s.l.; 24 Oct. 1949; F.P. Monteiro leg., MZSP • 1 ♂; same collection data as for preceding; MZSP • 1 ♀ immature, 1 ♂ immature; same collection data as for preceding; MZSP • 10 ♀♀; same collection data as for preceding; MZSP • 2 ♀♀, 8 ♀♀ immatures; Cordeirópolis, Estação Experimental de Cordeirópolis (= Centro de Citricultura Sylvio Moreira); [-22.462172, -47.399190]; 737 m a.s.l.; Feb. 1952; L.G. Lordello leg.; MZSP • 1 ♂; same collection data as for preceding; MZSP • 1 ♂; same collection data as for preceding; MZSP • 2 ♂♂, 1 ♀, 8 ♀♀ immatures; same collection data as for preceding; MZSP • 2 ♂♂, 1 ♀, 2 ♀♀ immatures; same collection data as for preceding; Dec. 1952; MZSP • 1 ♀ immature; same collection data as for preceding; Feb. 1953; MZSP • 1 ♀ immature; Campinas, Viracopos; [-22.968361, -47.153399]; 619 m a.s.l.; Feb. 1953; L.G. Lordello leg.; MZSP .

Descriptive notes

MEASUREMENTS. 59–63 body rings (1–2 apodous + telson). Males: body length 35–45 mm; maximum midbody diameter 2.4–2.5 mm. Females: body length 35–45 mm; maximum midbody diameter 2.3– 3.1 mm.

COLOR. Body color brownish; metazonites with a medial brown band and a posterior lighter band; antennae and legs light brown (Fig. 41).

HEAD. Antennae short (Fig. 163A), just reaching back to end of ring 4 when extended dorsally; antennomeres goblet-shaped; relative antennomere lengths 1<2<3>4=5=6>7. Mandibular cardo with ventral margin narrow. Ommatidial cluster well-developed, elliptical; ca 35 ommatidia in 5 rows.

BODY RINGS. Collum with lateral lobes broadly rounded, with ca 4 striae, slightly curved ectad (Fig. 41A). Very faintly constriction between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae from ca ⅓ length below ozopore. Anterior sternum subrectangular, with 8 faint transverse striae (Fig. 167A).

FIRST LEG-PAIR OF MALES. Coxae (cx) elongated (as long as the sum of remaining podomere lengths), subrectangular, with the base arched, densely setose (Figs 42A, 43B); prefemoral process (prf) as long as half of prefemur, subcylindrical, densely setose up to its median region (Fig. 42B); remaining podomeres with setae along mesal region.

SECOND LEG-PAIR OF MALES. Coxa (cx) large and rounded; penis (pn) located at proximal region, suboval, extended basally (Figs 42C, 43E–F); prefemur compressed dorsoventrally; remaining podomeres setose.

GONOPODS. Gonocoxa (gcx) elongated, almost twice as long as telopodite, with the base arched; slightly flattened antero-posteriorly (Fig. 42E–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) rounded. Telopodite (tp) almost as wide as gcx (Figs 42D, 43D); solenomere (sl) with apicomesal process (amp) subtriangular, larger; ectal process (ep) rounded; sa located at mesal portion, slightly visible apically. Internal branch (ib) subtriangular, narrow, surrounding basally tp as a shield; ib with setae along its entire margin exceeding apically seminal region of sl (Fig. 42D–F).

VULVAE. As typical for the genus. Bursa subtriangular, glabrous (Fig. 177A); internal valve subtriangular; operculum narrow, curved medially; external valve wide, subtriangular.

Distribution

Known from the central-west region of the state of São Paulo, Brazil (Fig. 180); occurring in the Cerrado biome (tropical savanna ecoregion) and in second-growth forests in the region.