Titanattus euryphaessa, Bustamante & Ruiz, 2017

Bustamante, Abel A. & Ruiz, Gustavo R. S., 2017, Systematics of Thiodinini (Araneae: Salticidae: Salticinae), with description of a new genus and twelve new species, Zootaxa 4362 (3), pp. 301-347 : 341-343

Titanattus euryphaessa sp. nov.

Figs 8L , 30

Note. This species is mentioned as “ Titanattus sp. B” in Ruiz & Maddison (2015). Type material. Male holotype ( MPEG 34603 ) from Várzea Piranha (02°12'36.1"S, 56°07'20.7"W), Juruti, Pará, Brazil, 05.VIII.2010, N.C. Bastos leg.

Additional material examined. ECUADOR: Napo: Estación Biológica Jatun Sacha (1.067°S, 77.617°W), 400 m elev.: 1♂ (MRB030), 21–24.VII.2004, Maddison, Agnarsson, Iturralde & Salazar leg. (UBC-SEM); 1♂ (d170) (UBC-SEM).

Etymology. The specific name is a noun in apposition in reference to Euryphaessa (also known as Theia, Théa or Thia), the Titaness of sight and the shining light of the clear blue sky.

Diagnosis. Males differ from those of the other species of this genus by having a robust, hooked embolus ( Fig. 30D ).

Description. Male (holotype). Total length: 3.65. Carapace 1.61 long, 1.27 wide, 1.04 high. Ocular quadrangle 1.00 long. Anterior and posterior eye row 1.04 wide. Chelicera paturon with three promarginal teeth and four retromarginal teeth. Length of femur: I 1.21, II 1.04, III 0.94, IV 1.15; patella + tibia: I 1.69, II 1.32, III 1.15, IV 1.38; metatarsus + tarsus: I 1.17, II 1.04, III 1.15, IV 1.32. Leg formula: 1 423. Leg spination: femur I d1- 1-1, p1di, r0; II d1-1-1, p1di, r1di (r0 right); III‒IV d1-1-1, p1di, r1di; patella I 0; II‒III p1, r0; IV p1, r0 (p0, r1 right); tibia I p1di, r0, v2 a-0-2a-2; II p1di, r0, v1 r-2a-2; III p0-1-0, r0-1-0, v1 pdi; IV p0-1-0, r0-1-0, v2 di; metatarsus I‒II v2-2; III p2di, r0, v0; IV p2di (p1di right), r1di, v0. Palp ( Figs 30D‒30G ): tibia wider than long; RTA triangular; RvTA poorly developed; short embolus with a robust base. Color in alcohol: carapace dark brown, abdomen white with a dark marking centrally on the dorsum; venter pale. Legs with striped pattern ( Figs 30A‒ 30C ).

Female. Unknown.

Distribution. Known from Brazil and Ecuador.

Natural history. The specimens from Ecuador were collected associated to disturbed areas.

Figures

FIGURE 8. Male chelicerae in Thiodinini, anterior view. A Arachnomura querandi sp. nov., holotype; B Cyllodania trinidad sp. nov., holotype; C Cyllodania zoobotanica sp. nov., holotype; D Hyetussa sergipe sp. nov., holotype; E Hyetussa tremembe sp. nov., holotype; F Tartamura agatelin gen. nov. et sp. nov., holotype; G Tartamura huao gen. nov. et sp. nov., holotype; H Tartamura metzneri gen. nov. et sp. nov., holotype; I Thiodina firme sp. nov., holotype; J Thiodina perian sp. nov., holotype; K Titanattus acanjuba sp. nov., holotype; L Titanattus euryphaessa sp. nov., holotype.Cyan arrows show spine-like setae.

FIGURE 30. Titanattus euryphaessa sp. nov. A male holotype, dorsal; B same, lateral; C same, ventral; D male palp, ventral view; E same, retrolateral view; F same, dorsal view; G same, prolateral view.