Uroctea concolor Simon, 1882

Rheims, Cristina A., Santos, Adalberto J. & Harten, Antonius, 2007, The spider genus Uroctea Dufour, 1820 (Araneae: Oecobiidae) in Yemen, Zootaxa 1406, pp. 61-68 : 62-63

Uroctea concolor Simon, 1882

Figures 1–2

Uroctea limbata concolor Simon 1882: 241 (Female holotype from YEMEN, Aden, J. Doria & O. Beccari coll., I.1880, in MCSN, examined). Bonnet 1959: 4780.

Uroctea concolor Simon. Roewer 1942: 385 ; Platnick 2006.

Diagnosis. Uroctea concolor resembles U. thaleri by the insemination and fertilization ducts which are delicate and thin, but can be distinguished by the long, ovoid and contiguous spermathecae and the shorter fertilization ducts, without a blind ending additional duct ( Fig 2 ).

Description. Male. Unknown.

Female (holotype). Carapace brown, variegated with dark brown laterally and along thoracic grooves. Cephalic area dark brown, with a V-shaped mark extending from lateral eyes to posterior border. Eye borders black. Pedipalps and legs brown, with coxae light orange. Femur of legs and pedipalps with three longitudinal darker stripes. Chelicerae dark orange. Sternum light orange, with darker, sclerotized borders. Labium and endites orange, cream colored distally. Opisthosoma greenish gray dorsally, mottled by very small and slightly visible cream colored spots. Dorsum with three pairs of brown muscular pits. Venter yellow-gray. Spinnerets orange, posterior laterals yellow-gray. Total length 10.1. Carapace 3.8 long, 3.4 wide. Eye size and interdistances: AME 0.3, ALE 0.26, PME 0.2, PLE 0.14, AME–AME 0.12, AME–ALE 0.02, ALE–PLE 0.06, PME– PME 0.40, PME–PLE contiguous, AME–PME 0.10. Clypeus 0.9 high. Leg measurements: I femur 3.3/ patella 1.8/ tibia 2.1/ metatarsus 2.8/ tarsus 1.5/ total 11.5. II 3.4/ 2.0/ 2.2/ 2.9/ 1.4/ 11.9. III 1.4/ 1.7/ 2.1/ 2.9/ 1.4/ 9.5. IV 3.6/ 2.1/ 2.0/ 3.0/ 1.5/ 12.2. Opisthosoma 8.2 long, 4.3 wide. Epigynum small, with a median plate delimited by two small, lateral lobes ( Fig 1 ). Insemination ducts long, with a median loop close to spermathecae ( Fig 2 ).

Distribution. Known only from the type locality.

Material examined. Only the holotype.

Figures

FIGURES 1 – 2. Uroctea concolor Simon. 1. Female epigynum, ventral view. 2. Female internal genitalia, dorsal view. F, fertilization duct; S, spermatheca. Scale: 0.5 mm.