Pseudonannolene nicolau, Iniesta & Bouzan & Brescovit, 2023

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 : 109-111

Pseudonannolene nicolau sp. nov.

urn:lsid:zoobank.org:act:69C209DC-C284-46AB-BF9D-8F71D4795DAD

Figs 159–160 , 164B , 174E , 179I , 191 ; Supp. file 4: Figs 216D, 217B, 221C

Diagnosis

Males of P. nicolau sp. nov. can be distinguished from those of all other species of Pseudonannolene by having apicomesal, medial, and ectal processes on the solenomere ( Fig. 160D ).

Etymology

The species epithet is a noun in apposition derived from the type locality Fazenda São Nicolau, Cotriguaçu, Mato Grosso, an important area of reforestation and environmental education in the Amazon rainforest.

Material examined

Holotype BRAZIL • ♂; Mato Grosso, Cotriguaçu, Fazenda São Nicolau ; [-9.902508, -58.568103]; 370 m a.s.l.; 9 Dec. 2009; D. Rodrigues leg.; ABAM.

Paratypes (total: 1 ♂, 4 ♀♀, 1 immature) BRAZIL • 1 ♂, 2 ♀♀, 1 immature; same locality data as for holotype; 8 Dec. 2009; D.A. Batistella leg.; ABAM • 2 ♀♀; same locality data as for holotype; 14 Dec. 2009; L.D. Battirola leg.; ABAM 76 .

Referred non-type material (total: 26 ♂♂, 32 ♀♀; 3 immatures)

BRAZIL – Mato Grosso • 1 ♂, 2 ♀♀, 1 immature; Cotriguaçu, Fazenda São Nicolau ; [-9.902508, -58.568103]; 370 m a.s.l.; 8 Dec. 2009; D.A. Battistela leg.; ABAM 0146 • 1 ♀; same locality data as for preceding; 14 Dec. 2009; L.D. Battirola leg.; ABAM 0147 • 2 ♀♀; same locality data as for preceding; ABAM 0153 • 1 ♀; same locality data as for preceding; 9 Dec. 2009; D. Rodrigues leg.; ABAM 0155 • 4 ♂♂, 2 ♀♀; same locality data as for preceding; 12 Nov. 2010; R.E. Vicente leg.; ABAM 0160 • 1 ♂, 1 ♀; same locality data as for preceding; 13 Nov. 2010; R.E. Vicente leg.; ABAM 0161 • 2 ♂♂, 2 ♀♀, 2 immatures; same locality data as for preceding; 3 Nov. 2016; R.E. Vicente leg.; ABAM 0173 • 15 ♂♂, 17 ♀♀; same locality data as for preceding; 2 Nov. 2014; M. Karam-Gemael leg.; CZUFMT 815 • 3 ♂♂, 4 ♀♀; Aripuanã ; [-10.306043, -59.658975]; 214 m a.s.l.; 15 Dec. 2003; C. Strussmann leg.; CZUFMT 831 .

Description

MEASUREMENTS. 55–61 body rings (1 apodous + telson). Males: body length 65–71.5 mm; maximum midbody diameter 3.1–4.5 mm. Females: body length 68.4–78.5 mm; maximum midbody diameter 3.9–5.5 mm.

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

HEAD. Antennae short ( Fig. 164B ), just reaching back to end of ring 5 when extended dorsally; antennomeres elongated; relative antennomere lengths 1<2≈3>4>5≈6>7. Mandibular cardo with ventral margin swollen. Ommatidial cluster well-developed, elliptical; ca 20 ommatidia in 4 rows.

BODY RINGS. Collum with lateral lobes rounded, with ca 12 shallow striae, slightly curved ectad posteriorly ( Fig. 159A ). Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae up to ozopore in anterior body rings. Anterior sterna in midbody rings subrectangular, without transverse striae ( Fig. 174E ).

FIRST LEG-PAIR OF MALES. Coxae (cx) elongated (as long as the sum of remaining podomere lengths), subrectangular, with the base arched and expanded, densely setose ( Fig. 160A ); prefemoral process (prf) as long as half of prefemur, subcylindrical, densely setose along the entire ventral region ( Fig. 160B ); 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. 160C ); prefemur compressed dorsoventrally; remaining podomeres setose.

GONOPODS. Gonocoxa (gcx) rounded, basally expanded and progressively less wide, with the base arched; antero-posteriorly flattened ( Fig. 160D–F ); with rows of papillae mesally. Seminal groove (sg) curved; arising medially on mesal cavity and terminating apically on the seminal apophysis (sa). Shoulder absent. Telopodite (tp) almost as wide as gcx ( Figs 160D , 216D, 217B); solenomere (sl) with apicomesal process (amp) short, subtriangular; medial process (mp) present, subtriangular; ectal process (ep) elongated, projected ectad; sa located at medial portion on mp, elongated, visible apically. Internal branch (ib) swollen and rounded apically, with large horizontal plate covering entirely trunk of tp in anal view; setae restricted to the apical region of ib not exceeding seminal region of sl ( Fig. 160D–F ).

VULVAE. As typical for the genus. Bursa clearly subtriangular, glabrous ( Fig. 179I ); internal valve subtriangular, acuminated apically; operculum narrow, slightly curved ectad; external valve subtriangular, covering operculum basally.

Distribution

Known only from the type locality Fazenda São Nicolau, Cotriguaçu, Mato Grosso State, Brazil ( Fig. 191 ), an important region of international efforts for reforestation in the Amazonian region (see Rodrigues et al. 2011, 2019).

Species inquirendae

Because crucial aspects for proper identification such as morphology of the gonopod, first and second leg-pair of males were not described or sufficiently documented in the original descriptions and types poorly preserved, the following species are considered species inquirendae:

Figures

Fig. 159. Pseudonannolene nicolau sp. nov., paratype, ♂ (ABAM), in lateral view. A. Anterior region. B. Posterior region. Scale bars = 0.2 mm.

Fig. 160. Pseudonannolene nicolausp. nov., paratype, ♂ (ABAM).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 = 0.2 mm.

Fig. 164. Stereoscopic images of antennae of species of Pseudonannolene Silvestri, 1895. A. P. morettii sp. nov. B. P. nicolau sp. nov. C. P. bucculenta sp. nov. D. P. occidentalis Schubart, 1958. E. P. parvula Silvestri, 1902. F. P. patagonica Brölemann, 1902. G. P. paulista Brölemann, 1902. H. P. robsoni Iniesta & Ferreira, 2014. I. P. rolamossa Iniesta & Ferreira, 2013. J. P. silvestris Schubart, 1944. K. P. strinatii Mauriès, 1974. L. P. tricolor Brölemann, 1902. M. P. typica Silvestri, 1895. N. P. insularis sp. nov. O. P. urbica Schubart, 1945. Images not to scale.

Fig. 174. Stereoscopic images of gnathochilarium and anterior sternum of species of Pseudonannolene Silvestri, 1895. A. P. xavieri Iniesta & Ferreira, 2014. B. P. bucculenta sp. nov. C. P. morettii sp. nov. D. P. insularis sp. nov. E. P. nicolau sp. nov. 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. 191. Distribution map of the species Pseudonannolene insularis sp. nov., P. morettii sp. nov., and P. nicolau sp. nov.