Raveniola arthuri (Kunt & Yağmur, 2010)

Figs 76, 109, 137, 157, 184, 221

Raveniola arthuri Kunt & Yağmur, 2010: 306, figs 1a–e, 2a–d (♂).

Diagnosis

In the structure of its embolus this species is similar to Raveniola micropa, but differs from the latter by a considerably shorter and narrower proximal part of the embolus (Fig. 184; cf. Fig. 187–188).

Material examined

Holotype TURKEY: ♂, Diyarkabır Province, Eğil District, 38°15′28.27″ N, 40°5′2.44″ E, 857 m, 13 Apr. 2008, under stones, E.A. Yağmur, E. Tezcan and V. Ülgezer leg. (AUZM).

Paratypes TURKEY: 2 ♂♂, collection data as for holotype (AUZM).

Description

Male (holotype)

MEASUREMENTS. TBL 14.85, CL 4.92, CW 4.16, LL 0.38, LW 0.78, SL 2.31, SW 2.11.

COLOUR. Prosoma dorsally brownish orange, with darkened palp, leg I, cephalic area and radial grooves on carapace; eye tubercle dark brown; chelicerae medium cherry-red; sternum, labium, maxillae, palps and legs ventrally light reddish brown; abdomen dorsally light brownish grey with diffuse darker light brown dorsal pattern (several irregular transverse fasciae), ventral abdominal surface and spinnerets pale yellowish brown.

PROSOMA. Carapace and chelicerae as shown in Fig. 76. Clypeus and eye group as in Fig. 109. Eye diameters and interdistances: AME 0.12(0.16), ALE 0.18, PLE 0.12, PME 0.12, AME–AME 0.15(0.11), ALE–AME 0.07(0.05), ALE–PLE 0.09, PLE–PME 0.03, PME–PME 0.34. Each cheliceral furrow with 11 promarginal teeth and 7–8 mesobasal denticles. Maxillae with 10–11 cuspules each.

LEGS. Tibia and metatarsus I as shown in Fig. 137. Scopula: distal on metatarsi I–II, entire on tarsi I– II; absent on tarsi III–IV. Trichobothria: 2 rows of 9–10 each on tibiae, 11–14 on metatarsi, 11–13 on tarsi, 8 on cymbium. Paired tarsal claws with 6–8 teeth on each margin.

LEG MEASUREMENTS.

SPINATION. Femora I–IV with one basodorsal spine and 3–4 median and distal bristles; patellae I and II aspinose. Palp: femur d1–1–1–1, pd1; patella p1; tibia d1–1–0, p1–1–1, pv1–1–2, r0–0–1, rv1–1–0; cymbium d4. Leg I: femur pd0–0–1; tibia p0–1–0, rv1–1–1–m–m, metatarsus v0–0–2. Leg II: femur pd0–1–1; tibia p1–1–1, v2–1–1–3; metatarsus v2–2–2. Leg III: femur pd0–0–1, rd0–1–1; patella p1, r1; tibia d1–1–0, p1–1(2)–1, r1–1–1, v2(3)–2–3; metatarsus d0–0–1–0, p1–1–1–1–1, r1(0)–1–1, v1(2)–2–3. Leg IV: femur pd0–0–1, rd0–0–1; patella p1, r1; tibia d0–0–1–0, p1–1–1, r1(0)–1–1, v2–2–3; metatarsus d0–1–1–0, p1–1–1–1, r1–1–1–0, v2–2–3.

PALP. Tibia, cymbium and bulb as shown in Fig. 157. Embolic keel lost; embolus corkscrew-shaped, with basal bend located submedially (Fig. 184).

SPINNERETS. PMS: length 0.42; diameter 0.15. PLS: maximal diameter 0.43; length of basal, medial and apical segments 0.73, 0.58, 0.51; total length 1.82; apical segment shortly digitiform.

Female

Unknown.

Variation

Carapace length in males varies from 4.05 to 4.16. The shape of the embolus in the holotype and both paratypic males is practically identical.

Ecology

The type series, containing only males, was collected in an open steppe biotope without trees; the spiders were found hiding under stones.

Distribution

Known only from the type locality. See Fig. 221.