Eucampesmella capitu, 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 : 12-14

Eucampesmella capitu sp. nov.

Figs 45−47, 67

http://zoobank.org/ 62C71EE1-52A3-44AD-BA05-FB3FA88800E9

Diagnosis. Males of Eucampesmella capitu sp. nov. differ from all other species of the genus by the apical portion of prefemoral process divided ( Figs 45, 47), similar to E. pedrobala sp. nov., but with anterior branch longer than the posterior, while in E. pedrobala sp. nov. the two branches have the same length ( Fig. 45).

Type material. Holotype: Male from Paraíba, Brazil, 1999, A. Giupponi & A.B. Kury coll. ( MNRJ 11959 ) . Paratypes: One male with same data as for holotype ( MNRJ 30172 ) .

Description. Male (Holotype, MNRJ 11959). Coloration (long-preserved in 70% ethanol): Head brownish. Antennae white yellow. Body brown and paranota tip whitish. Legs brownish. Body rings: cuticle rough, with a pattern of slightly raised squares; 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 an 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 without any projection. Legs brownish, with a dorsal lobe in the prefemur. Telson brown with the posterior margin whitish.

Total length: 43.51. Width total: 6.75. Antennomere lengths (1>7): 0.51; 1.13; 1.29; 1.32; 1.18; 0.26. Podomeres lengths (1>7): 0.69; 0.93; 1.99; 0.84; 0.91; 1.23; 0.46. Gonopod aperture, long 1.67, width 2.65. Telson, long 1.15. Gonopod: long 2.15, width 2.22. Coxae: long 0.99, width 1.91. Telopodite: long 2.04, width 1.09.

Gonopods ( Figs 45−47): coxae equivalent to about the length of the telopodite and prominent digitiform (= rectangular, with rounded corners) in ectal view ( Fig.47). 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; broad, in dorsal view, except for the terminal branch; a thin and small secondary process arises in the medial portion (PfP; Figs 45, 46). Acropodite elongated, robust and broad; apical portion divided into two large branches: solenomere conducting the prostatic groove that opens on a small sharp projection in the apex of this branch (S; Fig. 47). Acropodital process (AP) subtriangular shaped in ventral view ( Fig. 46).

Female. Unknown.

Additional material examined. BRAZIL: Piauí: Serra da Capivara (8°46’39”S; 42°37’03”W), 1 male, 10.ii-03.iii.2013, R. S. Recoder coll. ( IBSP 3750 ) .

Distribution. Known from states of Piauí and Paraíba ( Fig. 67).

Etymology. The species epithet is a reference to the Brazilian literature character “Capitu ” from the book “Dom Casmurro” written by Machado de Assis. Noun in apposition.