Rupidesmus ruber Schubart 1952
Creators: name: Bouzan, Rodrigo Salvador
name: Iniesta, Luiz Felipe M.
name: Brescovit, Antonio Domingos
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Polydesmida
Chelodesmidae
Rupidesmus
Rupidesmus ruber

description: Rupidesmus ruber Schubart, 1952
Figures 2A–C, 3A–C, 4, 5
Rupidesmus ruber Schubart, 1952: 450, figs. 4–6 (Male holotype from Lapa Vermelha, Lagoa Santa (43°54'8.07"W, 19°40'25.31"S), Minas Gerais, Brazil, 22/X/1947, J. Schubart coll., deposited in MZSP 996, vis.
Additional material examined. BRAZIL. Minas Gerais: Confins (43°59'25.29"W, 19°37'46.94"S), Sino Cave, 1♂, 21/XII/2016, F. Bondezan coll. (IBSP 4652); cave CC40, 2♀, 26/I/2017, F. Bondezan coll. (IBSP 4653); Lagoa Santa (43°53'54.96"W, 19°37'49.64"S), 1♂, 26/III/2009, I.L.F. Magalhães coll. (IBSP 2865); Lapa Vermelha, Lagoa Santa (43°54'8.07"W, 19°40'25.31"S), 1♀, 22/X/1947, J. Schubart coll. (MZSP 999).
Diagnosis. Adults males of Rupidesmus ruber differ from those of R. aclys n. sp. based on combination of gonopodal characteristics: Prefemoral process directed diagonally in relation to acropodite (Fig. 3A). Prostatic groove running marginally on acropodite, with a basal curvature and a sinuous distal curvature ending upon a short prostatic apex (Fig. 3A). Indention located distal to a bulky tab; tab curving ventrally imparting a twisted shape (Figs. 3A, B). Presence of a rounded ventral tip on acropodite (Fig. 4F).
Redescription. Male (Holotype, MZSP 996). Coloration in life, of the specimens described by Schubart (1952), reddish brown (when viewed just before preservation). Coloration (fixed in 70% ethanol): Head ochre. Body light ochre. Paranota tip a little lighter than the color of the body. Legs yellow. Telson ochre. Sternites of body rings 5 to 17 with two pairs of rounded projections between the coxae (Fig. 5F, arrows). Total length: 60.6. Collum 3.27 long, 8.02 wide. Antennomere lengths (1>7): 1.05; 1.89; 1.69; 1.60; 1.78; 1.64; 0.40. Gonopod aperture (Fig. 5E) 1.85 long, 3.08 wide. Telson 1.35 long. Gonopods (Figs 3A–C, 4): coxae with two setae on distal dorsal side and with a row of setae on distal ventral side. Spiniform process present on gonocoxae (SP; Fig. 3B). Prefemoral region short, 1/4 length of telopodite. Prostatic groove with a basal curvature and a sinuous distal curvature ending upon a short prostatic apex. Prefemoral process small, dagger-shaped and directed diagonally in relation to acropodital branch (PfP; Figs 3A, 4D). Acropodite flat and massive (A; Figs 3A–C), middle part with prominent indentation just distal to a tab at posterior margin which continues to anterior margin (Figs. 3A, B, arrow). Posterior margin in apical region with a rounded acropodital process (AP; Figs 4A, F), acropodite ending upon a short prostatic apex (Figs 4A–B, F).
Female (MZSP 999). Coloration (in 70% ethanol) as in male. Total length 63.7. Collum 3.72 long, 8.10 wide. Telson 1.79 long. Cyphopods (Figs 5A–B) with thick setae dispersed over the whole of the valves. Apical part of cyphopod concave, with the intermediate membrane projecting between the valves (Fig. 5A).
Distribution. Known only from the state of Minas Gerais, in the southeast portion of the limestone karst Bambui Group.
description: Published as part of Bouzan, Rodrigo Salvador, Iniesta, Luiz Felipe M. & Brescovit, Antonio Domingos, 2018, A review of the millipede genus Rupidesmus Schubart, 1952 (Polydesmida: Chelodesmidae), pp. 589-599 in Zootaxa 4434 (3) on pages 592-593, DOI: 10.11646/zootaxa.4434.3.12, http://zenodo.org/record/1292297