Titidius urucu Esmerio & Lise 1996
Creators: name: Amanda, Naila
name: Salvatierra, Lidianne
name: Almeida, Marlus Queiroz
name: Morais, José Wellington De
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Thomisidae
Titidius
Titidius urucu

description: Titidius urucu Esmerio & Lise, 1996 (Figures 1−9)
Titidius urucu Esmerio & Lise, 1996: 203, figs 85–92 (holotype male from Rio Urucu, Coari, 4°05’S, 63°08’W, Amazonas, Brazil, 1992, M. E. E. S. Oliveira leg. (FUA), examined).
Material examined. BRAZIL: Roraima: 4 males, 4 females, Amajari, Reserva Biológica Ilha de Maracá, 02°49'12"N,
60°40'23"W, 18–22 July 1987, R. Gabriel (INPA 2081). Amazonas: 1 male, Manaus, PDBFF- Projeto dinâmica
Biológica de Fragmentos Florestais, Colosso 10 ha, 02°24'34.89” S, 59°52'03.23” W Beat sheet, 20 December 2001 –20
March 2002. F. Rego & A. Cardoso (INPA 2779); 1 male, 1 female, Presidente Figueiredo, Hidrelétrica de Balbina Ilha
Massaranduba, 1°47’04.6’’S, 59°41’08.9’’W, 5 August 2006, Beat sheet, Transect 3, R. Saturnino (INPA 1299).
Diagnosis. Females of Titidius urucu resemble those of Titidius rubescens in the absence of an atrium (see Esmério & Lise, 1996, figs 61̄62), but differ in the shape of epigynum and copulatory openings being barely visible in ventral view. Titidius urucu differs from all other Titidius species in the presence of a pair of round copulatory openings leading to well developed copulatory ducts, and spermathecae with two small round lobes (Figs 8 ̄9).
Description. Male: Described by Esmério & Lise (1996: 203̄204, figs 85̄92).
Female (INPA 2801): Total length: 5.12. Carapace: 2.21 long, 1.99 wide. Opisthosoma: 3.15 long, 1.62 wide. Eyes. Interdistances: ALĒAME 0.17, PMĒPME 0.17, PLĒALE 0.25, AME-AME 0.17, PME-PLE 0.17, PME-PME 0.17, PLE-PLE 0.99, ALE-ALE 0.99. Median eyes smaller than lateral ones. Coloration (in alcohol). Carapace dark orange brown with white marks and darker lateral patches (Figs 1 ̄3, 5). Dorsum of opisthosoma grey with brown markings and three white transversal lines (Figs 1, 6). Pedipalp and legs yellowish brown (Figs 1 ̄5). Leg spination. I: femur d11, v0; patella d2, v0; tibia d6, v6; metatarsus d5, v6; tarsus d2, v2; II: femur d 10, v6; patella d2, v2; tibia d8, v2; metatarsus d5, v7; tarsus without spines; III: femur d6, v6; patella d1, v2; tibia d6, v2; metatarsus d7, v4; tarsus d4, v2; IV: femur d5, v0; patella without spines; tibia d4, v2; metatarsus d6, v1 and tarsus d4, v2. Leg measurements. I: femur 2.14/ patella 1.01/ tibia 2.15/ metatarsus 1.52/ tarsus 0.90/ total 7.74; II: 2.21/ 0.98/ 2.19/ 1.71/ 0.88/ 7.98; III: 1.44/ 0.72/ 1.20/ 0.74/ 0.61/ 4.73; IV: 1.20/ 0.58/ 1.19/ 0.89/ 0.71/ 4.55. Epigynum (Figs 8 ̄9). Copulatory openings barely visible. Copulatory ducts kidney-shaped. Copulatory ducts larger than spermathecae. Spermathecae spherical.
Distribution. Brazil: states of Roraima (Amajari) and Amazonas (Manaus).
description: Published as part of Amanda, Naila, Salvatierra, Lidianne, Almeida, Marlus Queiroz & Morais, José Wellington De, 2018, Description of female of Titidius urucu Esmerio & Lise, 1996 (Araneae: Thomisidae), pp. 284-286 in Zootaxa 4422 (2) on pages 284-286, DOI: 10.11646/zootaxa.4422.2.7, http://zenodo.org/record/1251541