Celaetycheus beiju new species

Figures 8, 14–15

Type material. Male holotype from Prado (Fazenda Furado) [17°20ʹ27ʺS, 39°13ʹ15ʺW], Bahia, Brazil, 13–26.IX.1970, CEPLAC, deposited in IBSP 163485. Paratypes: 1 female, same data as the holotype, deposited in IBSP 163486; 1 male, same locality as the holotype, 08.VIII.1970, CEPLAC, deposited in IBSP 163487; 1 male from Itamarajú (Fazenda Nossa Senhora das Neves) [17°02ʹ20ʺS, 39°31ʹ51ʺW], Bahia, Brazil, 09.X.1978, J.S. Santos, deposited in IBSP 163488.

Etymology. “ Beiju ” is a typical meal of the Brazilian culinary tradition, very popular in the northeast of Brazil. It is prepared with cassava starch as a kind of pancake or crepe, traditionally filled with coconut and cheese. The other common name for this meal is “Tapioca”.

Diagnosis. Males of Celaetycheus beiju sp. nov. (Figs 8A–B) can be distinguished from the remaining species of the genus by the male palp with an elongated and large median tegular projection pointing prolaterally and embolus with a basal projection. Females of C. beiju sp. nov. (Figs 8C–D) resemble those of C. caruru sp. nov. (Figs 10C–D) by the subtriangular shape of the median sector of the epigynum, but can be distinguished from those by the presence of elongated lateral lobes on the lateral sector of epigynum (Fig. 8C).

Description. Male (holotype IBSP 163485). Total length 3.4. Carapace 1.8 long, 1.55 wide. Eye diameters: AME 0.10, ALE 0.08, PME 0.16, PLE 0.16. Leg measurements: I: femur 1.65/ patella 0.63/ tibia 1.5/ metatarsus 1.55/ tarsus 0.85/ total 6.18; II: 1.55/ 0.65/ 1.25/ 1.45/ 0.75/ 5.65; III: 1.5/ 0.6/ 1.15/ 1.6/ 0.75/ 5.6; IV: 2.0/ 0.65/ 1.6/ 2.2/ 1.05/ 7.5. Leg formula 4123. Leg spination: tibia I–II v2-2 -2-2-2, p1-1, r1-1, III–IV v2-2 -2, p1-1, r1-1; metatarsus I–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 8A–B): tibia straight, slightly longer than cymbium; retrolateral tibial apophysis with bifid tip; ventral tibial apophysis short; short median apophysis with a prolateral cup-shaped projection; embolus thin and elongated.

Female (paratype IBSP 163486). Total length 4.7. Carapace 1.9 long, 1.7 wide. Eye diameters: AME 0.12, ALE 0.10, PME 0.17, PLA 0.17. Leg measurements: I: femur 1.45/ patella 0.65/ tibia 1.35/ metatarsus 1.3/ tarsus 0.6/ total 5.35; II: 1.5/ 0.65/ 1.2/ 1.25/ 0.6/ 5.2; III: 1.4/ 0.6/ 1.2/ 1.2/ 0.6/ 5.0; IV: 1.8/ 0.6/ 1.5/ 1.95/ 0.85/ 6.7. Leg formula 4123. Leg spination: tibia I–II v2-2 -2-2-2, p0, r0, III–IV v2-2 -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 8C–D): median sector, short and large, not covering the lateral lobes on the lateral fields; copulatory duct projected; head and base and head of spermathecae small; fertilization ducts thin.

Distribution. Prado and Itamarajú, State of Bahia, northeast Brazil (Fig. 15 B).