Xysticus demirsoyi, Demir, Hakan, Topçu, Aydin & Türkeş, Tuncay, 2006

Demir, Hakan, Topçu, Aydin & Türkeş, Tuncay, 2006, A new species of the genus Xysticus C. L. Koch from Turkey (Araneae: Thomisidae), Zootaxa 1364, pp. 45-49 : 46-48

Xysticus demirsoyi sp. n.

Figs 1–8

Material. Holotype ɗ ( NUAM), TURKEY: Niġde Province, Maden Village, (2500 m.) (37°26´N, 34°37´E) 10.VI.2001, leg. Tuncay Türkeş. Paratypes 2 ɗ, 1 Ψ ( NUAM), together with holotype, leg. Tuncay Türkeş.

Etymology. The new species is named in honour of famous Turkish zoologist Prof. Dr. Ali Demirsoy.

Diagnosis. Based on the arrangement of the two tibial apophyses of the male palp, and the flat tegulum without apophyses, this new species included in the sabulosus -group of Xysticus ( Simon 1932) . The males of X. demirsoyi sp. n. are similar to X. sabulosus (Hahn, 1832) (cf. Thaler 1981: figs 52, 57; Jantscher 2002: figs 5, 6) and X. secedens L. Koch, 1876 (cf. Thaler 1981: figs 53, 58), but can be separated from them by the fish scale-like surface of the basal embolus, the position of the tegular ridge, and the shape of the tibial apophyses. The female resembles X. xerodermus Strand, 1913 (cf. Logunov & Demir 2006: figs 8-10), but can be separated from this and all other species by the shape of its spermathecae.

Description. Measurements (holotype ɗ/ paratype Ψ). Carapace: 3.5 long, 3/3.2 wide. Abdomen: 3.3/4 long, 2.6/3.6 wide. Clypeus 0.25/0.35 long, chelicera 1.15 long. Eye sizes and inter distances: MOA–WA 1.15/1.25, MOA–WP 1.6/1.75, MOA–L 0.45, AME–AME 0.40/050, AME–ALE 0.20/025, PME–PME 0.45/0.50, PME–PLE 0.50.

Leg measurements:

Male. Carapace red brown with yellow V-shaped mark. Eye tubercles yellow. Sternum, labium, maxillae and chelicerae yellow with dark brown spots. Dorsum of abdomen light brown, with white stripes anteriorly and on sides, covered with long setae.

Spinnerets yellow, distally brownish. Legs variegated (with brownish spots), tarsi and metatarsi creamy-coloured. Leg I spination: femur d. 1–2–1–1–1, p. 1–1–2–2–2, v. 2–2 –2–2–2ap., tibia p. 2–1–1, r. 1–1–1, v. 2–2 –2–2–2ap., metatarsus p. 1–1–1ap., r. 1–0–1ap., v. 2–2 –2–2–2ap. Palpal structure as in Figs 1–2 , 5–7 .

Female. Coloration generally lighter than in male. Carapace light brown with wide yellow median band. Clypeus, chelicerae, maxillae and labium yellow. Sternum yellow with light brown spots. Dorsum of abdomen creamy with white and light brown spots. Spinnerets yellow. All legs yellow with dark brown spots, with dorsal and ventral longitudinal brown stripes on femora, patellae and tibia. Leg I spination: femur p. 1–1–1, tibia v. 2–2 –2–2ap., metatarsus p. 1–1–1–1ap., r. 1–0-1–1ap., v. 2–2 –2–2–2. Epigyne and spermathecae as in Figs 3–4 , 8 .

Distribution. Only the type locality.

Figures

FIGURES 1 – 4. Xysticus demirsoyi sp. n., 1 – 2. left male palp; 1. ventral view; 2. retrolateral view; 3. epigyne, ventral view; 4. spermathecae, dorsal view. Scale bars = 0.25 mm.

FIGURES 5 – 8. Xysticus demirsoyi sp. n., 5. left male palp, paratype (ventral view); 6. left male palp, paratype (retrolateral view); 7. embolus, paratype; 8. epigyne, paratype (ventral view, scale bar = 0.25 mm).