Rhinocricus vacariensis, Rodrigues, Patrícia E. S., Ott, Ricardo & Rodrigues, Everton N. L., 2012

Rodrigues, Patrícia E. S., Ott, Ricardo & Rodrigues, Everton N. L., 2012, New species and new records of millipedes of the genus Rhinocricus Karsch, 1881 (Spirobolida: Rhinocricidae) from southern Brazil, Zootaxa 3172, pp. 55-64 : 62

Rhinocricus vacariensis sp. nov.

( Figs. 30–34 )

Types. Holotype male from Vacaria, Rio Grande do Sul, Brazil, 29.III.1987, C. S. Marros leg. (MCN 246).

Etymology. The species epithet is a noun in apposition, referring to the type locality.

Diagnosis. Rhinocricus vacariensis is close to Rhinocricus itauba by the distal small groove in the sternite of the anterior gonopod, but differs from this species by the posterior gonopod having the solenomere with rounded apex, and not indented as in R. itauba .

Description. Male, holotype ( Figs. 33, 34 ). With 54 segments. Length 78. Width 7. Clypeus olive-brown with spaced 2–2 supra-labial setae. Labrum yellowish-brown with 11–11 setae. Antennae brown, with numerous sensory cones (more than 20). Collum olive-brown with yellowish margins and rounded ventro-lateral borders. Prozonites olive-brown. Metazonites brown with yellowish margins; posterior ones with more intense yellow at margins. Segments 47–53 with whitish pseudosuture. Epiproct faded olive, yellowish and rounded distally, surpassing the paraproct. Paraproct olivaceous. Hypoproct yellowish. Legs brown, with enlongated coxae at third and fourth pairs. Ocelli black arranged in five rows in the following numeric order (dorsal to ventral): 9, 8, 7, 5, 4 right and 9, 8, 7, 5, 4 left. Ozopores black, beginning in the sixth segment. Scobinae beginning at eighth segment.

Anterior gonopod ( Figs. 30, 31 ). Sternite triangular, with small groove distally, not surpassing the coxite and the telepodite. Telepodite with rounded distal lobe. Wide coxite, internal lobe sharp distally not surpassing telepodite.

Posterior gonopod ( Fig. 32 ). Solenomere sharp and dug distally, longer as tibiotarsus. Tibiotarsus enlarged from its origin, apex lamellated.

Female. Unknown.

Distribution. Known only from the type locality (Vacaria, state of Rio Grande do Sul, Brazil).

Figures

FIGURES 30 – 34. Rhinocricus vacariensis sp. nov. 30 – 31, anterior gonopod. 30, anterior view. 31, posterior view. 32, left posterior gonopod, anterior view. 33 – 34, lateral view. 33, posterior segments. 34, anterior segments. Scale bar = 1.0 mm (Figs. 30 – 32).