Raveniola montana, Zonstein, Sergei & Marusik, Yuri M., 2012

Zonstein, Sergei & Marusik, Yuri M., 2012, A review of the genus Raveniola (Araneae, Nemesiidae) in China, with notes on allied genera and description of four new species from Yunnan, ZooKeys 211, pp. 71-99 : 75-77

Raveniola montana sp. n. Figs 5910171826324048

Types.

Holotype ♂ and paratype ♀ - CHINA: Yunnan Province, Sueshan Mt. Ridge, Shika Mts. 10-15 km W Zhongdian (approximately 27°48'N, 99°35'E), 3800-4300 m, 25.05-6.06.2005, coll. I. Shokhin & S. Murzin (IZAS).

Etymology.

The specific epithet montana is derived from the Latin montanus (pertaining to the mountains), referring to the mountain habitat of this species.

Diagnosis.

The species differs from all other Chinese species of Raveniola by having a short embolus provided with deep ridges in males (Fig. 40); the specific configuration of female spermathecae is shown in Fig. 48.

Description.

Male (holotype). Body length 15.50. Colour in alcohol: carapace, chelicerae, palps and first pair of legs dorsally intense reddish brown; eye tubercle with darker spots surrounding AMEs and lateral eyes; sternum, labium, maxillae and legs II–IV light reddish brown; dorsal abdomen uniformly light greyish brown, ventral abdominal surface and spinnerets pale greyish brown.

General appearance as in Fig. 5. Carapace (Fig. 9) 6.35 long, 5.51 wide; covered with semi-adpressed dark hairs. Eye diameters (AME, ALE, PLE, PME): 0.19(0.26), 0.37, 0.19, 0.11. Interdistances: AME–AME 0.13(0.07), ALE–AME 0.09(0.06), ALE–PLE 0.04, PLE–PME 0.03, PME–PME 0.48. Cheliceral furrow with 9 promarginal teeth and 5 mesobasal denticles each. Labium (Fig. 17) 0.59 long, 1.08 wide. Maxillae with 15 cuspules each. Sternum 2.66 long, 2.65 wide. Palp: 8.66 (3.39, 1.59, 2.51, -, 1.17). Leg I: 20.23 (5.18, 3.06, 4.50, 4.82, 2.67). Leg II: 18.52 (4.97, 2.61, 4.13, 4.29, 2.52). Leg III: 18.15 (4.63, 2.48, 3.66, 4.65, 2.73). Leg IV: 23.41 (5.70, 2.66, 5.04, 6.88, 3.13). Leg I: tibia slightly incrassate, metatarsus slightly curved retroventrally (Fig. 26).

Spination. Palp: femur d1 –1–1– 1, pd1, rd1; patella p1 –1– 1, r1; tibia d1 –1– 2, p2 –2– 1, r0 –1– 1, v3 –1– 3; cymbium d5. Leg I: femur d1 –1–1– 1, pd1 –1– 1; rd 1 –1– 1; patel la p1-1; tibia p2 –1– 0, pv1 –1–0– 0, rv1 –1–M–M; metatarsus v0 –0– 2. Leg II:hg femur d1 –1–1– 1; pd1 –1– 1; patella p1-1; tibia p2(1) –1(0)– 1, v2 –2– 3; metatarsus p1(0) –1– 0; v2 –2– 3. Leg III: femur d1 –1–1– 1, pd0 –1– 1, rd0 –1– 1; patella p1-1, r1; tibia d1-1, p1 –1– 1, r1 –1– 1, v2 –2– 2(3); metatarsus d1 –1– 2, p1 –1– 1, r1 –1– 1, v2(3) –2– 3. Leg IV: femur d1 –1–0– 0, pd0 –1– 1, rd0 –1– 1; patella p1, r1; tibia d1 –1– 2, p1 –1– 1, r1 –1– 1, v2 –2– 2(3); metatarsus pd1 –1– 2, p1 –1– 1, r1 –1– 1, v2 –1–2–1(0)– 3. Tarsi I–IV aspinose.

Scopula: distally on metatarsus I, entire on tarsus I, divided by setae on tarsus II; elsewhere absent. Paired claws: inner row with 5-6, outer row with 6-7 teeth. Trichobothria: 2 rows of 9-11 per row on tibiae, 12-17 on metatarsi, 11-14 on tarsi, 8 on cymbium.

Palpal tibia shortened, cymbium with few long spines (Fig. 32). Bulb provided with well-developed ridges; embolus short slightly twisted (Fig. 40).

Spinnerets. PMS: length 0.38; diameter 0.12. PLS: maximum diameter 0.35; length of basal, medial and apical segments 0.61, 0.63, 0.71; total length 1.95; apical segment digitiform.

Female (paratype): Body length 12.90. Colour in alcohol as in male, but slightly paler.

Carapace (Fig. 10) 4.66 long, 3.75 wide. Eye diameters (AME, ALE, PLE, PME): 0.16(0.20), 0.22/0.23, 0.14, 0.10. Interdistances: AME–AME 0.10(0.06), ALE–AME 0.07(0.05), ALE–PLE 0.05, PLE–PME 0.03, PME–PME 0.43. Cheliceral furrow with 9 promarginal teeth and 5 mesobasal denticles. Labium (Fig. 18) 0.50 long, 1.03 wide. Maxillae with 15 cuspules each. Sternum 2.16 long, 1.99 wide. Palp: 7.45 (2.64, 1.44, 1.74, -, 1.63). I: 12.00 (3.55, 1.70, 2.72, 2.33, 1.70). II: 10.86 (3.10, 1.63, 2.29, 2.17, 1.67). III: 10.62 (2.75, 1.49, 2.05, 2.60, 1.73). IV: 14.09 (3.70, 1.57, 3.01, 3.76, 2.05).

Spination. All femora with a few stiff bristles (undeveloped spines) located medially and distally; palpal patella, patella I and tarsi I–IV aspinose. Palp: femur pd0 –0– 1; tibia p2-2, v1 –1– 3; tarsus v2. Leg I: femur pd0 –0– 1; tibia v1(2) –1(2)– 2; metatarsus v2 –2– 2. Leg II: femur pd0 –0– 1; patella p1; tibia p1-1, v1 –1– 2; metatarsus p0 –1– 0, v2 –2– 2. Leg III: femur pd 0 –1– 1, rd 0 –1– 1; patella p1, r1; tibia d0 –1– 1, p1 –1– 1, r1 –1– 1, v2 –2– 3; metatarsus d0 –1– 1, p1 –1– 1, r1 –1– 1, v2 –2– 3. Leg IV: femur pd0 –1– 1, rd0 –0– 1; patella r1; tibia d0 –1– 0, p1 –1(0)– 1, r0 –1– 1, v2 –2– 3; metatarsus d0 –1– 0, p1 –1–1– 1, r1 –1– 1, v2 –1–2– 3.

Scopula: distal on metatarsus I, narrowly divided by setae on palpal tarsus and tarsus I, widely divided and vestigial on tarsus II, elsewhere absent. Paired claws: promargin and retromargin on tarsi I and II with 6-7 teeth, on tarsi III and IV with 4-6 teeth each, respectively; palpal claw with 4 teeth on promargin. Trichobothria: 2 rows of 8-10 per row on tibiae, 14-16 on metatarsi, 11-12 on tarsi, 8 on palpal tarsus.

Spermathecae as in Fig. 48.

Spinnerets. PMS: length 0.32; diameter 0.13. PLS: maximum diameter 0.37; length of basal, medial and apical segments 0.59, 0.37, 0.50; total length 1.46; apical segment digitiform.

Distribution.

CHINA: Yunnan Province (Fig. 1).