Rhinocricus montenegrinus, Rodrigues & Rodrigues & Ott, 2018

Rodrigues, Patrícia E. S., Rodrigues, Everton N. L. & Ott, Ricardo, 2018, Four new species of Rhinocricus (Diplopoda: Spirobolida: Rhinocricidae) from Brazil, Iheringia, Série Zoologia (e 2018031) 108, pp. 1-5 : 3-4

Rhinocricus montenegrinus sp. nov.

( Figs 11, 12 ; 16, 17 )

urn:lsid:zoobank.org:act:F07E52B2-EF97-4235-8A9B-497C74E57C8F

Type material. Male holotype from Montenegro , 29°41’19”S, 51°27’40”W, Rio Grande do Sul, Brazil, 11.VIII.1977, V. Pitoni leg. ( MCN 0098). Paratypes: two ♂ and three ♀, same data as the holotype ( MCN 0099) .

Etymology. The specific name is a Latin adjective derived from the type locality.

Diagnosis. Rhinocricus montenegrinus sp. nov. resembles R. jandirae Schubart, 1944 (see SCHUBART, 1944:387, figs 54, 55) by the shape of the external branch of the posterior gonopod which is distally quadrate, but differs by the sternite of the anterior gonopod being longer than wide, distally projecting and rounded, and by a rounded distal lobe of the coxite ( Fig. 11 ).

Description. Male holotype ( Figs 16, 17 ) with 52 rings. Length 58. Width 5. General coloration ligtht brown. Clypeus with spaced 2-2 supra-labral setae. Metazonites with posterior margins yellowish-brown. Ocelli black, arranged in seven rows. Ozopores beginning at the sixth ring. Scobinae semicircular beginning at sixth ring. Third and fourth pairs of legs with elongated coxae. Telson ( Fig. 17 ) with epiproct elongated surpassing the paraprocts. Hypoproct semicircular.

Anterior gonopod ( Fig. 11 ) with subtriangular sternite longer than wide, distally projecting and rounded. Sternite longer than coxite but shorter than telopodite. Coxite with evident lobe, shorter than telopodite and sternite. Telopodite with evident distal lobe.

Posterior gonopod ( Fig. 12 ). Solenomere distally pointed, shorter than external branch. External branch lamellate, distally quadrate.

Female paratype with 53 rings. Length 56. Width 5. General coloration light brown.

Distribution. Known only from the type locality, Montenegro, state of Rio Grande do Sul, South Brazil.

Figures

Figs 11-12. Rhinocricus montenegrinus sp. nov. Figs 11, 12, anterior gonopod: 11, anterior view; 12, posterior gonopod (cx, coxite; st, sternite; sl, solenomere; tp, telopodite; eb, external branch; lb, lobe of coxite). Scale bar = 1.0 mm.

Figs 16-20. Rhinocricus montenegrinus sp. nov. Figs 16,17, holotype ♂, lateral view: 16, anterior rings; 17, posterior rings. Figs 18-20, Rhinocricus fortaleza sp. nov., holotype ♂: 18, ventral view; 19, anterior rings; 20, posterior rings (co, collUm; II, second ring; III, third ring; IV, foUr ring; V, five ring; IV, six ring; par, paraproct; ep, epiproct; hyp, hypoproct). Scale bar = 2.0 mm.