Yllenus logunovi Wesolowska & van Harten

Wesolowska, W. & van Harten, A., 2010, Order Araneae, Arthropod fauna of the UAE, Abu Dhabi: Dar Al Ummah, pp. 27-69 : 60

Yllenus logunovi Wesolowska & van Harten nov. spec. Plate 12, Figures 87 -91

Specimens examined: Holotype: ♂, United Arab Emirates, Wadi Bih dam , 25 °48'N 56 ° 04'E, 24- 29.vi.2008, in light trap, leg. A. van Harten ( MRAC) . Paratypes: 2♂, 2 ♀, same data as holotype . 1♂, N of Ajman , 16.ix l 2. x.2006, WT ; 5♂, 1 ♀, 27. iv.2008, WT ; 1♂, 1 ♀, 5. v 11.vi.2008, WT ; 13♂, 5- 16.7.2008, WT ; 3♂, 2 ♀, 5 l 6. vii. 2008, WT ; 6♂, 2 ♀, l 6-23. vii. 2008, WT ; 2♂, 27 30. iv. 2008, WT ; 2 ♀, l 8-22. v.2008, WT ; 2♂, 1 ♀, 25.v l 2. vi. 2008, WT ; 8♂, 4 ♀, 25.vi—5. vii.2008, WT ; 1♂, 16- 23.vii. 2008, WT ; 1♂, 2 ♀, 22. ix l 2.x. 2008, WT ; 2♂, 1 l 4.ii. 2009, WT ; 1♂, 1 ♀, 15 l 6. iii. 2009, WT, leg. C. Schmid-Egger . 1♂, S of Ra’s al-Khaimah , 25 — 26. iii. 2008, WT, leg. J. Bosák . 5♂, near Um al- Quwaín , 1 30.xi. 2008, PT ; 3♂, 23 — 26. vi.2008, WT ; 1♂, 2 ♀, 11-13. iii. 2009, WT .

Diagnosis: The species is related to Y. salsicola (Simon, 1937) ; the male may be recognised by smaller tegulum, narrower terminal apophysis accompanying embolus and straight tibial apophysis; the female has simpler epigyne, with clearly shorter seminal ducts.

Description: Measurements. Cephalothorax length 1.5-1.8/ 1.7-2.0, width 1.4-1.7 l 1.6-1.8, height 0.8 0.9/0.9-1.0. Abdomen length 1.6-1.8/2.0 2.2, width 1.2 1.4/ 1.7 2.1. Eye field length 0.7 0.8/0.9 1.0, anterior width 1.1 1.2/ 1.1 1.3, posterior width 1.3-1.4/1.4 1.5. Male. General appearance as in Plate 12. Small, swollen spider. Carapace high, sloping behind ocular area, dark brown with two longitudinal white streaks composed of light hairs. Anterior" part of eye field covered with small light scales. Clypeus brown, clothed in whitish hairs. Chelicerae dark brown, mouthparts light brown with paler apices. Abdomen whitish with wide median brown band and two poorly marked lateral brownish stripes, sides and venter‘ yellow. Dorsum of abdomen covered with dense hairs. Spinnerets beige. Legs yellow with brown patches, dark scopule on tarsi. Pedipalps brownish. Tibial apophysis straight, cymbial process well developed (Fig. 89). Tegulum small, posteriorly narrower ( Figs 87 , 88).

Female. Slightly larger than male. Carapace brown, eye field blackish, only its anterior part lighter, clothed in light scales. Thoracic part light brown with median darker belt. Numerous whitish grey hairs cover carapace. Abdomen rounded, yellow or fawn with indistinct median brown streak, whole abdomen clothed in dense greyish hairs. In some specimens abdomen darker, with indistinct pattern composed of grey chevrons and spots. Venter yellowish or grey. Legs as in male, lighter coloured. Epigyne typical for the (Fig. 90). Internal genus structures simple, seminal ducts short, receptacles spherical (Fig. 91).

Remarks: This species belongs to the albocinctus species group (see Logunov & Marusik, 2003).

Etymology: This species is named after Dr Dmitri Logunov, excellent specialist of salticids, who recently revised the genus Yllenus .

Figures

Figures 87 91. Y / lenus Íogz / novi nov. spec. 87: Palpal organ in ventrolateral View; 88: Same in ventral view; 89: Same in lateral view; 90: Epigyne; 91: Internal structure of epigyne.