Pseudonannolene borelli Silvestri, 1895

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 : 25-26

publication ID

https://doi.org/ 10.5852/ejt.2023.867.2109

publication LSID

lsid:zoobank.org:pub:8DEF295C-A8B1-4A6B-B873-B30949F64E07

DOI

https://doi.org/10.5281/zenodo.7907855

persistent identifier

https://treatment.plazi.org/id/03F887BA-132B-B178-4D7F-FB10FCAE509D

treatment provided by

Felipe

scientific name

Pseudonannolene borelli Silvestri, 1895
status

 

Pseudonannolene borelli Silvestri, 1895

Figs 50 View Fig , 180 View Fig

Pseudonannolene borelli Silvestri, 1895b: 7 , fig. 12.

Pseudonannolene borelli – Silvestri 1897b: 8; 1902: 22 (description of specimens from Areguá, Central, Paraguay). — Viggiani 1973: 366. — Jeekel 2004: 88.

Diagnosis

Males of P. borelli slightly resemble those of P. longicornis and P. tricolor by having gonopod with subcylindrical gonocoxa, but differing by an internal branch with long setae restricted to the apical margin and the solenomere with a large trunk ( Silvestri 1895b: 7, fig. 12; Fig. 50E View Fig ).

Etymology

Patronym honoring the collector Dr Alfredo Borelli ( Silvestri 1895b).

Material examined (total: 1 ♀)

PARAGUAY – Central • 1 ♀; Areguá ; [-25.303669, -57.412255]; 157 m a.s.l.; 11 Oct. 1900; A. Borelli leg.; USNM 2389 About USNM GoogleMaps .

Descriptive notes

Gonopod description adapted from Silvestri (1895b: 7) to supplement original description and to introduce gonopod terminology. Non-sexual characters described as female.

MEASUREMENTS. 68 body rings (1 apodous + telson). Females: body length ca 60 mm; maximum midbody diameter 3 mm.

COLOR. Strongly faded because of long preservation in ethanol, but apparently metazonites with a brownish posterior band; head, antennae, and legs lighter brownish.

HEAD. Antennae short ( Fig. 50A View Fig ), 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 32 ommatidia in 5 rows.

BODY RINGS. Collum broken. Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae. Anterior sterna in midbody rings subrectangular, without transverse striae.

GONOPODS. Gonocoxa (gcx) elongated, almost twice as long as telopodite, subrectangular; flattened antero-posteriorly; with rows of papillae mesally. Seminal groove (sg) terminating apically on the seminal apophysis (sa). Shoulder (sh) inconspicuous. Telopodite (tp) as wide as half of gcx; solenomere (sl) with apicomesal process (amp) subtriangular; ectal process (ep) subtriangular, separated from amp by shallow notch; sa located at mesal portion. Internal branch (ib) shovel-shaped, slightly curved apically; setae restricted to the apical region of ib exceeding seminal region of sl ( Fig. 50E View Fig ).

Distribution

Known from Chaco in southwestern Paraguay; other records from the literature for Argentina and Bolivia ( Fig. 180 View Fig ).

Comments

The type material described by Silvestri (1895b) was not found after consulting the Museo Regionale Scienze Naturali, Torino, Italy (MRSN). Nevertheless, a female topotype (USNM 2389) originally identified by Silvestri (but erroneously referenced as a paratype in its original label) was examined ( Fig. 50A–D View Fig ). Other specimens from Argentina (Santa Fé), Bolivia (Potosí and Tajira), and Paraguay (Asunción) were recorded by Silvestri (1897b, 1902).

Kingdom

Animalia

Phylum

Arthropoda

Class

Diplopoda

Order

Spirostreptida

Family

Pseudonannolenidae

Genus

Pseudonannolene

Loc

Pseudonannolene borelli Silvestri, 1895

Iniesta, Luiz Felipe Moretti, Bouzan, Rodrigo Salvador & Brescovit, Antonio Domingos 2023
2023
Loc

Pseudonannolene borelli

Jeekel C. A. W. 2004: 88
Viggiani V. 1973: 366
Silvestri F. 1902: 22
Silvestri F. 1897: 8
1897
Loc

Pseudonannolene borelli

Silvestri F. 1895: 7
1895
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