Celaetycheus aberem, Polotow, Daniele & Brescovit, Antonio D., 2013

Polotow, Daniele & Brescovit, Antonio D., 2013, New species of the Neotropical spider genus Celaetycheus Simon, 1897 (Araneae: Ctenidae), Zootaxa 3637 (2), pp. 139-157 : 143-146

Celaetycheus aberem new species

Figures 6 , 14–15

Celaetycheus ca. flavostriatus: Silva 2003: 10 , 69.

Type material. Male holotype from Mascote (Fazenda Palestina) [15°33ʹ46ʺS, 39°18ʹ10ʺW], Bahia, Brazil, 11.V.1968, CEPLAC, deposited in IBSP 163514. Paratypes: 1 female, same data as holotype, deposited in IBSP 163515; 1 male from Pau Brasil (Fazenda São João) [15°27ʹ50ʺS, 39°39ʹ0 3ʺW] Bahia, Brazil, 06.I.1971, CEPLAC, deposited in MNRJ 13127; 1 male from Jussari (Fazenda Santo Antonio) [15°11ʹ27ʺS, 39°29ʹ42ʺW], Bahia, Brazil, 05.VIII.1970, CEPLAC, deposited in IBSP 85329; 1 male from Jussari (Fazenda Santo Antônio) [15°11ʹ27ʺS, 39°29ʹ42ʺW], Bahia, Brazil, 9.VII.1970, CEPLAC, deposited in MNRJ 13052; 1 male from Jussari [15°11ʹ27ʺS, 39°29ʹ42ʺW], Bahia, Brazil, 5.VIII.1970, CEPLAC, deposited in IBSP 5176; 1 female from Camacan (Fazenda Esperança) [15°25ʹ0 8ʺS, 39°29ʹ45ʺW], Bahia, Brazil, 7.VI.1969, CEPLAC, deposited in IBSP 163252.

Additional material examined. BRAZIL: Bahia. Jussari [15°11ʹ27ʺS, 39°29ʹ42ʺW], Fazenda Ribeirão do Antonio, 1 male, 11.IV.1997, CEPLAC (MNRJ 13310); Fazenda Bethânia, 1 female, 17.V.1971, CEPLAC (MNRJ 13129).

Etymology. “ Aberém ” is a typical meal of the Bahia culinary tradition and also plays a role in the religious ritual of Candomblé. It is made with macerated corn or rice and cooked in banana leaves.

Diagnosis. Males of Celaetycheus aberem sp. nov. ( Figs 6A–B ) resemble those of C. mungunza sp. nov. ( Figs 12A–B ) by the large embolus, absence of a tegular projection and a median apophysis curved prolaterally at tip, but can be distinguished by the larger median apophysis ( Fig. 6A ). Females of C. aberem sp. nov. ( Figs 6C–D ) can be distinguished from the remaining species of the genus by the subquadrangular shape of the median sector of the epigynum ( Fig. 6C ).

Description. Male (holotype IBSP 163514). Total length 3.45. Carapace 1.85 long, 1.65 wide. Eye diameters: AME 0.10, ALE 0.08, PME 0.16, PLE 0.16. Leg measurements: I: femur 1.9/ patella 0.7/ tibia 1.7/ metatarsus 1.8/ tarsus 0.7/ total 6.8; II: 1.7/ 0.7/ 1.5/ 1.65/ 0.7/ 6.25; III: 1.7/ 0.7/ 1.35/ 1.7/ 0.7/ 6.15; IV: 2.1/ 0.65/ 1.7/ 2.3/ 0.9/ 7.65. Leg formula 4123. Leg spination: tibia I–II v2-2 -2-2-2, p1, r1-1, III–IV v2-2 -2, p1-1, r1-1; metatarsus I–II v2-2 -2, p1-1, r1-1-1, III v2-2 -2, p1-1, r1-1, IV v2-2 -2, p1-1-1, r1-1-1. Palpal femur with short spines close to the proximal area; coxa and trochanter of leg II with short and thick spines ( Fig. 14 B). Palp ( Figs 6A–B ): straight tibia, with almost the same size of the cymbium; retrolateral tibial apophysis short and coniform; ventral tibial apophysis short; cymbial retrolateral projection subtriangular; laminar embolus with large base; median apophysis with a prolateral hook and large base; additional tegular projection absent.

Female (paratype IBSP 163515). Total length 4.7. Carapace 2.1 long, 1.8 wide. Eyes diameters: AME 0.12, ALE 0.10, PME 0.17, PLE 0.17. Leg measurements: I: femur 1.7/ patella 0.75/ tibia 1.5/ metatarsus 1.5/ tarsus 0.6/ total 6.05; II: 1.7/ 0.7/ 1.3/ 1.4/ 0.6/ 5.7; III: 1.65/ 0.7/ 1.2/ 1.6/ 0.6/ 5.75; IV: 2.1/ 0.7/ 1.6/ 2.2/ 1.0/ 7.6. Leg formula 4132. Leg spination: tibia I–II v2-2 -2-2-2, p0, r0, III v1 p-2-2, p1-1, r1-1, IV v1 p-1p-2, p1-1, r1-1; metatarsus I–II v2-2 -2, p0, r0, III–IV v2-2 -2, p1-1-1, r1-1-1. Epigynum ( Figs 6C–D ): median sector shorter than the lateral sector; lateral lobes absent in the lateral sectors; head of spermathecae short and base of spermathecae with a well demarked constriction; fertilization ducts thin.

Distribution. Mascote, Pau Brasil, Jussari and Camacan, State of Bahia, northeast Brazil ( Fig. 15 C).

Figures

FIGURE 14. Graphic representation of the distribution of ventral spines in the prosoma. A, Celaetycheus bobo sp. nov. and C. moqueca sp. nov.; B, Celaetycheus aberem sp. nov., C. beiju sp. nov. and C. caruru sp. nov.; C, Celaetycheus abara sp. nov., C. mungunza sp. nov.; D, Celaetycheus acaraje sp. nov. and C. vatapa sp. nov.

FIGURE 15. Collection localities of Celaetycheus species: A, South America. B – C, close-up, northeast Brazil, State of Bahia.

FIGURE 6. A – D Celaetycheus aberem sp. nov.: A – B Male palp (scale bar 1 mm); A. Ventral view; B. Retrolateral view. C – D Epigynum (scale bar 0.5 mm); C. Ventral view; D. Dorsal view.

FIGURE 12. A – D Celaetycheus mungunza sp. nov.: A – B Male palp (scale bar 1 mm); A. Ventral view; B. Retrolateral view. C – D Epigynum (scale bar 0.5 mm); C. Ventral view; D. Dorsal view.