Tartamura Bustamante & Ruiz 2017, gen. nov.
Creators: name: Bustamante, Abel A.
name: Ruiz, Gustavo R. S.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Tartamura

description: Tartamura gen. nov.
Type species: Tartamura agatelin sp. nov.
Etymology. The name is based on tartaros, where, in the Greek mythology, titans were inprisoned (also where wicked people were tormented and punished), and the end of Arachnomura. Feminine in gender.
Diagnosis. Tartamura gen. nov. resembles Arachnomura, Atomosphyrus, Cyllodania, Hyetussa and Thiodina in having spine-like setae on the anterior face of male chelicera (absent in Ta. agatelin sp. nov.). The genus differs from Atomosphyrus and Cyllodania in lacking projections on the face of male chelicera; from Arachnomura, Hyetussa and Thiodina in having the spine-like setae distributed only distally on the male chelicera (Figs 8G‒8H). The male palp has a long embolus, and in some species it extends to the dorsum of the cymbium. It is the only thiodinine genus with dark metatarsus I and lighter tibia and tarsus.
Note. Despite the morphological differences (see diagnosis), this group is similar to Arachnomura. In fact, Galiano (1977a) originally described Ta. adfectuosa comb. nov. in Arachnomura, due to overall morphological similarities beween this species and the type species of that genus, Ar. hieroglyphica (see figs 17‒18 in Galiano 1977a). However, a molecular study (Ruiz & Maddison 2015) placed Ar. querandi (“ A. cf. hieroglyphica ” in that paper), a species closely related to the type species of Arachnomura, closer to species herein described as Thiodina (Th. perian sp. nov., treated as “cf. Cyllodania ” in that paper), while the two species herein described as Tartamura (“cf. Arachnomura ” in that paper) showed up as closer relatives of a lineage that probably includes Cyllodania (“cf. Atomosphyrus ” in that paper) (Ruiz & Maddison 2015: fig. 37). Therefore, we decided to propose the new genus.
Description. Small jumping spiders (males 2.91‒3.15, females 2.85‒3.07 long) with flattened bodies and dark brown carapaces, usually with white scales (Figs 18, 20, 22); male paturon with a median excavation and usually with spine-like setae placed distally (Figs 8G‒8H); with two, three or four promarginal teeth and one or two retromarginal teeth in males; one or four promarginal teeth and one, three or four retromarginal teeth in females; male endites not projected; labium rounded and sternum triangular with an anterior keel next to coxa I (Figs 18C, 18F, 20C, 20F, 22C, 22F); male palpal tibia wider than long with a subtriangular RTA and variable RvTA (fingerlike, squared or rounded) (Figs 19A‒19C, 21A‒21C, 23A‒23C); cymbium oval (Fig. 23A). Leg formula 1423 or 1432 in males and 4132 or 1432 in females. General spination (variations in parentheses): male: femur I d1-1-1, p0 (p1di), r0; II d1-1-1 (d0-1-1), p0 (p1di), r0; III d1-1-1 (d0-1-1), p0 (p1di), r0 (r1di); IV d1-1-1, p0 (p1di), r0 (r1di); patella I‒IV 0; tibia I p0, r0, v2 *-0-2a-2a (v2 *-0-2a-0; v2 -0-2a-2a); II p0, r0, v1 r-1r-1p (v1 r-1r-0; v1 r-2a-2a; v1 r- 2a*-1r); III p0-1-1 (p0), r0-1-0 (r0), v2 di (v0); IV p0 (p1di; p0-1-1), r0 (r0-1-0), v2 di (v0; v2 adi); metatarsus I v2- 2; II v2-2 (v1 r-2); III p2di, r2di (r1di), v1 pdi (v1 p-1r-0); IV p2di, r2di (r1di), v2 di (v0; v1 p-2di; v1 rdi). Female: femur I d1-1-1, p0, r0; II=III d1-1-1 (d0-1-1), p0, r0; IV d1-1-1, p0, r0; patella I‒IV 0; tibia I p0, r0, v2-2 a-2a (v2 a- 2a-2a); II p0, r0, v1 r-1r-0 (v1 r-2a-1r; v1 r-1r-1r); III p0, r0 (r0-1-0), v0 (v1 pdi); IV p0, r0 (r0-1-0), v0 (v2 adi; v1 pdi); metatarsus I v2-2; II v2-2 (v1 r-2); III p2di, r2di (r1di), v0; IV p2di, r1di (r2di), v0. Abdomen usually longer than carapace with a transverse band of white scales anteriorly placed and chevrons of white scales dorsally (Figs 18A, 18D, 20A, 20D, 22A, 22D). Epigyne with a pair of copulatory openings placed medially or posteriorly; posterior edge uni- (Figs 21D‒21E) or bilobed (Figs 19D‒19E, 23D‒23E).
Distribution. Amazon forest (Brazil, Ecuador).
List of species (chronological order):
1. Tartamura adfectuosa (Galiano, 1977) comb. nov. 2. Tartamura agatelin sp. nov. (type species). 3. Tartamura huao sp. nov.
4. Tartamura metzneri sp. nov.
description: Published as part of Bustamante, Abel A. & Ruiz, Gustavo R. S., 2017, Systematics of Thiodinini (Araneae: Salticidae: Salticinae), with description of a new genus and twelve new species, pp. 301-347 in Zootaxa 4362 (3) on pages 324-326, DOI: 10.11646/zootaxa.4362.3.1, http://zenodo.org/record/1094882