Eucampesmella pedrobala, Bouzan & Iniesta & Pena-Barbosa & Brescovit, 2021

Bouzan, Rodrigo S., Iniesta, Luiz Felipe M., Pena-Barbosa, João Paulo P. & Brescovit, Antonio D., 2021, Six new species of the widespread Brazilian millipede genus Eucampesmella (Polydesmida: Chelodesmidae), Zoologia (e 66300) 38, pp. 1-22 : 16

Eucampesmella pedrobala sp. nov.

Figs 56−60, 67

http://zoobank.org/ 6CC047E8-CAF9-4BA8-8A8E-F370EB36FDE3

Diagnosis. Males of Eucampesmella pedrobala sp. nov. differ from all other species of the genus by the apical portion of prefemoral process divided into two branches ( Figs 56, 57), similar to E. capitu sp. nov. but with the same length, while in E. capitu sp. nov. the anterior branch is longer than the posterior. Apex of the solenomere small and rounded ( Fig. 56). Acropodital process with irregular edges ( Figs 57, 58).

Type material. Holotype: Male from Cachoeira do Calista , Rodovia BR 020 , Parambu (6°12’31”S; 40°41’28”W), Ceará, Brazil, 19.III.1999, A.B. Kury & A. Giupponi coll. ( MNRJ 11606 ) . Paratype: One female from the same date and locality ( MNRJ 30173 ) .

Description. Male (Holotype, MNRJ 11606). Coloration (long-preserved in 70% ethanol): Head brownish. Antennae white yellow. Body brown and paranota tip whitish. Legs brownish. Body rings: cuticle rough; paranota with posterior edges rounded; ozopore posteriorly situated on paranota. Stigma oval. Sternite of body ring 4 with one pair of projections; Sternite of body ring 5 with two pairs of projections, the former ones are rectangular and the latter ones are triangular; Sternite of body ring 6 with one anterior pair of triangular projections. Pair of legs on body ring 3 with coxae possessing a rectangular-shaped genital papilla, and pairs of legs on body rings 5 to 17 with two pairs of slightly triangular projections between coxae. Gonopod aperture on body ring 7 elliptical, posterior edge with prominent folds, in anal view the posterior margin has a triangular projection. Legs brownish, with a dorsal lobe in the prefemur. Telson with the same color as the body.

Total length: 49.02. Width total: 7.67. Antennomere lengths (1>7): 0.66; 1.30; 1.22; 1.34; 1.51; 1.36; 0.27. Podomeres lengths (1>7): 0.67; 0.99; 2.03; 0.95; 1.05; 1.36; 0.36. Gonopod aperture, long 1.65, width 2.55. Telson, long 1.16. Gonopod: long 2.60, width 2.32. Coxae: long 0.99, width 1.69. Telopodite: long 2.56, width 1.12.

Gonopods ( Figs 56−58): coxae equivalent to about half the length of the telopodite and prominent rectangular, in ectal view ( Fig. 58). Coxae with a row of macrosetae on the dorsal side. Cannula: hook-shaped. Prefemoral region ventrally developed, about 1/3 length of telopodite; ending in a well-demarcated transition zone. Prefemoral process long; two terminal branches thin and slender, the proximal one slightly angulated and the apical one straight; a long and slender secondary process arises in the medial-basal portion, with almost the same length of the prefemoral process (PfP; Fig. 56). Acropodite elongated, robust and broad; Solenomere conducting the prostatic groove that opens on a small sharp projection in a small rounded apex (S; Fig, 56); Acropodital process with subtriangular shaped, with irregular edges, in ventral view (AP; Fig. 58).

Female (Paratype, MNRJ 30173). Coloration as in male. Posterior margin of vulvae opening with a large triangular-shaped epigyne. Vulvae ( Fig. 59) elongated, slender and oval-shaped. Total length: 54.13. Width total: 8.17. Posterior margin of the vulvae aperture: 2, 31 width. Vulvae: long 2.24, width 0.66. External valve: long 2.02, width 0.25. Internal valve: long 1.99, width 0.30. Operculum: long 0.30, width 0.42. Lateral margin of the both valves with long setae and densely setose, central setae short and scattered (IV, Figs 59, 60). Operculum small (OP, Figs 59, 60).

Distribution. Only know for the type locality ( Fig. 67).

Etymology. The species epithet is a reference to the Brazilian literature character “Pedro Bala” from the book “Capitães da Areia” written by Jorge Amado. Noun in apposition.