Cladistic analysis and taxonomic review of Pseudonannolene Silvestri, 1895 (Spirostreptida, Cambalidea, Pseudonannolenidae)

Author(s)

Luiz Felipe Moretti Iniesta

• Document type: Doctoral Thesis
• Press: São Paulo.
• Institution: Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB)
• Defense date: 2020-09-23

Examining board members

Antonio Domingos Brescovit; Leandro Dênis Battirola; Silvio Shigueo Nihei; Ricardo Ott

• Advisor: Antonio Domingos Brescovit

Abstract

A taxonomic review and cladistic analysis of the millipede genus Pseudonannolene Silvestri, 1895 is presented. The analysis is based on a dataset including 53 species of the genus as ingroup and 10 species as outgroup. 91 morphological characters were scored for the analysis. Three common synapomorphies support the monophyly of Pseudonannolene: presence of longitudinal suture on promentum, connection between the bands of penis and internal branch surrounding telopodite; and two homoplastic transformation: collum densely striate and setae located at the apex of prefemoral process of the first legpair of males. Pseudonannolene is recovered as adelphotaxon of Epinannolene Brölemann, 1903, comprising the subfamily Pseudonannoleninae. This clade is supported by two synapomorphies: well-developed prefemoral process and elongated tarsus of the second legpair of males; and one homoplastic transformation: narrow telopodite. Some internal clades within the genus are detailed and discussed. As revised here, the genus comprises 56 species, including eight undescribed species. P. brevis Silvestri, 1902 and P. rugosetta Silvestri, 1897 are considered species inquirendae. Neotype of P. alegrensis Silvestri, 1897 is herein proposed and male described for the first time. The following taxa are synonymized: P. canastra Gallo & Bichuette, 2020 and P. saguassu Iniesta & Ferreira, 2013 with P. ambuatinga Iniesta & Ferreira, 2013; P. marconii Iniesta & Ferreira, 2014 with P. longicornis (Porat, 1888); P. chaimowiczi Fontanetti, 1996, P. gogo Iniesta & Ferreira, 2013, P. rosineii Iniesta & Ferreira, 2014, P. taboa Iniesta & Ferreira, 2014 and P. longissimi Iniesta & Ferreira, 2014 with P. microzoporus Mauriès, 1987; P. tricolor gracilis Brölemann, 1902 and P. tricolor rugosus Schubart, 1945 with P. tricolor Brölemann, 1902; P. auguralis Silvestri, 1902 with P. rocana Silvestri, 1902; and P. abbreviate Silvestri, 1902 with P. typical Silvestri, 1895. P. inops Brölemann, 1929 as new status from P. bovei inops. Females are described for the first time for P. albiventris Schubart, 1952, P. Borelli Silvestri, 1895, P. bovei Silvestri, 1895, P. buhrnheimi Schubart, 1960, P. curtipes Schubart, 1960, P. halophile Schubart, 1949, P. leucocephalus Schubart, 1944, P. leucomelas Schubart, 1947, P. maritima Schubart, 1949, P. meridionalis Silvestri, 1902, P. occidentalis Schubart, 1958, P. ophiiulus Schubart, 1944, P. parvula Silvestri, 1902, P. paulista Brölemann, 1902, P. pusilla Silvestri, 1895, P. robsoni> Iniesta & Ferreira, 2014, P. rocana Silvestri, 1902, P. sebastianus Brölemann, 1902, P. segmentata Silvestri, 1895, P. silvestris Schubart, 1944, P. strinatii Mauriès, 1974, P. tricolor Brölemann, 1902, P. typical Silvestri, 1895, P. urbica Schubart, 1945 and P. xavieri Iniesta & Ferreira, 2014. A key to species of Pseudonannolene and distribution maps are provided. (AU)

• FAPESP's process: 16/24248-0 - Review and cladistic analysis of the genus Pseudonannolene Silvestri, 1895 (Diplopoda: Spirostreptida: Pseudonannolenidae)
• Grantee: Luiz Felipe Moretti Iniesta
• Support Opportunities: Scholarships in Brazil - Doctorate