Thiodina firme, 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 : 333-335

Thiodina firme sp. nov.

Figs 8I , 9B , 24

Type material. Male holotype ( MPEG 34602 ) from Várzea Piranha (02.210028°S, 56.122417°W), Juruti, Pará, Brazil, 22.II.2011, N.F. Lo-Man-Hung leg.

Etymology. The specific name is an invariable adjective taken from a colloquial expression “ firme !” (translated as “cool!”), used by the people of the state of Pará, Brazil.

Diagnosis. Thiodina firme sp. nov. resembles Th. nicoleti , Th. perian sp. nov. and Th. minuta comb. nov. by the general appearance of body, but differs from these by the triangular RvTA ( Figs 24E‒24F ).

Description. Male (holotype). Total length: 3.30. Carapace 1.54 long, 1.11 wide, 0.81 high. Ocular quadrangle 0.88 long. Anterior and posterior eye row 0.96 wide. Chelicera paturon with two promarginal teeth, the proximal one tricuspid, the distal one uni- or bicuspid, and one retromarginal tooth with three cusps. Length of femur: I 1.06, II 0.73, III 0.69, IV 0.92; patella + tibia: I 1.38, II 0.86, III 0.79, IV 1.09; metatarsus + tarsus: I 0.98, II 0.71, III 0.81, IV 1.02. Leg formula: 1423. Leg spination: femur I d1-1-1-1, p1di, r0; II d1-1-1, p1di, r0; III d0-1- 1, p1di, r1di (r0 right); IV d1-1-1, p1di, r1di; patella I‒IV 0; tibia I p0, r0, v2 -0-2a-2; II p0, r0, v1 r-0-0; III p0, r0, v0 (v1 pdi right); IV p0, r0-1-0, v0 (v1 rdi right); metatarsus I‒II v2-2; III p2di, r1di, v1 p-0 (v0 right); IV p2di, r1di, v0. Palp ( Figs 24D‒24F ): tibia longer than wide; RTA triangular; embolus simple, fixed to the tegulum, arising proximally, with a path of 360° before the distal coil. Color in alcohol: carapace mostly brown with yellow borders ( Figs 24A‒24B ), abdomen as in genus, but with the dark dorsal band of the middle, reduced ( Fig. 24A ). Femur I light brown, patella I distally darker, tibia I with distal half darker, metatarsus I brown, tarsus I yellow; other legs light brown.

Female. Unknown.

Distribution. Known only from Juruti, Brazil.

Natural history. Specimen was collected with a beating sheet.

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 9. Male sternum in Thiodinini, ventral view. A Titanattus acanjuba sp. nov., holotype; B Thiodina firme sp. nov., holotype; C Hyetussa sergipe sp. nov., holotype; D Arachnomura querandi sp. nov., holotype.

FIGURE 24. Thiodina firme sp. nov. A male holotype, dorsal; B same, lateral; C same, ventral; D male palp, ventral view; E same, retrolateral view; F same, prolateral view.