Erythrocricus sanguineostriatus ( Schubart, 1962 )

Rodrigues, Patrícia Elesbão Silva & Rodrigues, Everton Nei Lopes, 2021, Taxonomic review of the genus Erythrocricus Schubart, 1962 (Diplopoda, Spirobolida, Rhinocricidae), European Journal of Taxonomy 748, pp. 177-187: 179-183

publication ID

https://doi.org/10.5852/ejt.2021.748.1353

publication LSID

lsid:zoobank.org:pub:02CCCA41-C04A-4623-BA18-34D11AFFFE56

DOI

http://doi.org/10.5281/zenodo.4770846

persistent identifier

http://treatment.plazi.org/id/AE676339-FFCE-9F4B-29BA-3C3B870DFAD5

treatment provided by

Felipe

scientific name

Erythrocricus sanguineostriatus ( Schubart, 1962 )
status

 

Erythrocricus sanguineostriatus ( Schubart, 1962)  

Figs 1–3 View Fig View Fig View Fig

Rhinocricus (Erythrocricus) sanguineostriatus Schubart, 1962: 70   , figs 1, 2, 4.

Rhinocrinus (Erythocricus) sanguineostriatus   — Marek et al. 2003: 72.

Erythrocricus miniatostriatus Schubart, 1962: 71   , figs 3, 5. Syn. nov.

Justification of synonymy

Schubart (1962) described two species, Erythrocricus sanguineostriatus   and E. miniatostriatus   , both similar in body pattern and gonopods structure. Despite the similarities, both species present variations in

the red coloration on body rings wich in E. sanguineostriatus   is present dorsally and in E. miniatostriatus   dorsally and ventrolaterally. Our examination of the type species revealed that there is no significant difference either in external morphology or the structure of the gonopods between the species. Still, during examination of fresh specimens, we observed that the differences in the red coloration, seems to reflect only intraspecific variation.

Diagnosis

Erythrocricus sanguineostriatus ( Schubart, 1962)   resembles E. electrofasciatus ( Schubart, 1957)   comb. nov. by the shape of the anterior gonopod ( Figs 2A View Fig , 5A View Fig ) with a triangular sternite having the medial portion distally rounded and the anterior gonopod wider than long but differs by the telopodite of the anterior gonopod with a reduced lobe in posterior view ( Fig. 2B View Fig ), and the red coloration presented as a transverse red line on all metazonites, collum and telson ( Fig. 1B, D–F View Fig ) and a rounded process of the coxae of leg pair 3 of the male ( Fig. 1C View Fig ).

Material examined

Holotype

BRAZIL • 1 ♂; São Paulo, Presidente Epitácio ; 52º06′56″ W, 21º45′48″ S; 22 January 1950, O. Schubart leg.; MZSP 2039 View Materials . GoogleMaps  

Paratypes

BRAZIL • 1 ♂, 1 ♀; Goiás, Santa Helena de Goiás ; 50°35′18″ W, 17°49′23″ S; Nov.1960, G.A. Oliveira leg.; MZSP 2114 View Materials GoogleMaps   .

Other material

BRAZIL • 1 ♂; Goiás, Jataí ; 51º42′52″ W, 17º52′53″ S; Jan. 1955; M. Carreira leg.; MZSP2038 View Materials GoogleMaps   1 ♀; Aragarças ; 52º15′03″ W, 15º53′51″ S; 18 Jun. 1952; H. Sick leg.; MZSP1153 View Materials GoogleMaps   2 ♂♂, 1 ♀; Minaçu, Usina Hidrelétrica Serra da Mesa ; 48º13′12″ W, 13º31′59″ S; 1–10 Oct. 1990; A.B. Bonaldo and L.A. Moura leg.; MCN406. GoogleMaps  

Redescription

Male (MCN 406)

MEASUREMENTS. With 52p+1a+T. Total length 55.0 mm, maximum width of midbody body rings 5.1 mm.

COLORATION (in 70% alcohol) ( Fig. 1 View Fig ). Antennae and legs dark brown. Collum red with yellowish margins. Prozonites grey; metazonites in dorsal portion with transverse red line on all body rings, posterior margins whitish. Telson red.

HEAD AND BODY RINGS ( Fig. 1 View Fig ). Antennae with numerous apical sensory cones. Collum rounded laterally. Tegument smooth, without setae. Ozopores starting from 6 th ring. Scobinae starting from 7 th ring, semicircular and small.

LEGS ( Fig. 1C View Fig ). Coxae of leg pairs 3–5 of male expanded into a process. Coxae of leg pair 3 rounded.

TELSON (Fig. F). Epiproct short, not extended over paraprocts. Hypoproct subtriangular.

GONOPODS ( Fig. 2 View Fig ). Anterior gonopod wider than long, sternite triangular, medial portion with rounded apex. Sternite as long as coxite and shorter than telopodite ( Fig. 2A View Fig ). Coxite rounded, in posterior view with margins projected medially. Telopodite thickened with reduced distal lobe ( Fig. 2B View Fig ). Posterior gonopod distally bifid. External branch laminated and folded over solenomere. Solenomere long and thin ( Fig. 2C View Fig ).

Female (MCN 406)

Coloration ( Fig. 3 View Fig ) as in male, with 52p+T. Total length 56.0 mm. Width 5.2 mm.

Distribution

Known from Presidente Epitácio, state of São Paulo, and Santa Helena de Goiás, Minaçu, Aragarças, state of Goiás.

Kingdom

Animalia

Order

Spirobolida

Family

Rhinocricidae

Genus

Erythrocricus

Loc

Erythrocricus sanguineostriatus ( Schubart, 1962 )

Rodrigues, Patrícia Elesbão Silva & Rodrigues, Everton Nei Lopes 2021
2021
Loc

Rhinocrinus (Erythocricus) sanguineostriatus

Marek P. E. & Bond J. E. & Sierwald P. 2003: 72
2003
Loc

Rhinocricus (Erythrocricus) sanguineostriatus

Schubart O. 1962: 70
1962
Loc

Erythrocricus miniatostriatus

Schubart O. 1962: 71
1962