Sinopoda longiducta, Zhang, Bao-Shi, Zhang, Zhi-Sheng & Zhang, Feng, 2015

Zhang, Bao-Shi, Zhang, Zhi-Sheng & Zhang, Feng, 2015, Three new Sinopoda species (Araneae: Sparassidae) from southern China, Zootaxa 3974 (1), pp. 59-75 : 69-74

Sinopoda longiducta sp. nov.

(Figs 33–48)

Type material: Holotype: ♂, CHINA: Sichuan Province: Baoxing County, Fengtongzhai Natural Reserve, 30°25′N, 102°50′E, 970 m, evergreen broad-leaf forest, 29 June 2012, M.X. Liu ( MHBU, SP-SC-12-0601).

FGURES 33–34. Sinopoda longiducta sp. nov. 33–34 habitus ofmale holotype (33 dorsal, 34 ventral). Scale bar: 33–34: 2 mm.

Paratypes: 6♂♂, 3♀♀, same data as holotype (1 female in MHBU, SP-SC-12-0602, 6 males and 2 females in SWUC, SP-SC-12-0603–0610).

Etymology. The specific name is derived from the Latin word ‘ longi -’, meaning ‘long’, and the Latin word ‘ducta’, meaning ‘duct’, referring to the long internal duct system; adjective.

Diagnosis. Males of Sinopoda longiducta sp. nov. can be distinguished from other Sinopoda species (except S. triangula and S. globosa sp. nov.) by the triangular projection at the subdistal embolus ( Figs 35–37 , 42–45 ). The males of the new species differ from S. triangula and S. globosa sp. nov. by: the long distal embolus (longer than embolic apophysis) and the slender distal part of embolic apophysis. Females can be distinguished from other Sinopoda species by the long glandular appendage of vulva and its globose apical swelling ( Figs 40–41 , 46–48 ).

Description. Male: Total length (n=7) 12.56–12.70. Holotype: total length 12.70; prosoma 5.90 long, 5.70 wide; opisthosoma 7.40 long, 6.80 wide. Dorsal prosoma brown, lateral margins dark, posterior part covered by dark hairs. Fovea and radial furrows distinct. Eye diameters and interdistances: AME 0.23, ALE 0.36, PME 0.30, PLE 0.34; AME–AME 0.18, AME–ALE 0.09, PME–PME 0.26, PME–PLE 0.40. MOA 0.95 long, anterior width 0.60, posterior width 0.75. Clypeus height 0.37. Chelicerae yellowish-brown, anterior part with dark brown longitudinal bands, with 3 anterior and 4 posterior teeth, and with 45 denticles in elongated patch close to anterior teeth. Labium brown, gnathocoxae yellowish-brown, both with distal parts brighter. Sternum yellowish-brown, margin reddish-brown. Legs brown, ventral metatarsus III with sparse double row of bristles in proximal half, IV with dense double row of bristles along entire length. Leg measurements: I 34.40 (9.00, 2.60, 9.20, 10.20, 3.40), II 38.20 (10.20, 2.60, 11.00, 11.20, 3.20), III 28.00 (8.10, 2.60, 7.20, 7.50, 2.60), IV 31.90 (9.20, 2.60, 8.10, 8.60, 3.40). Leg formula: 2143. Leg spination: palp 131, 101, 2121; femur I–III 323, IV 321; patella 101; tibia 2326; metatarsus I–II 1014, III 2026, IV 3036. Dorsal opisthosoma covered by gray hairs, heart patch and muscle impressions yellow, lateral part with three pairs of black patches followed by a black transversal band; venter graybrown (Figs 33–34).

Palp ( Figs 35–37 , 42–45 ). Conductor slender and long; embolus slightly curving and arising from tegulum in 7 to 8-o'clock-position (left palp in ventral view), subdistal embolus with a triangular projection, embolic tip extending slightly beyond embolic apophysis, basal part of embolus only partly visible in ventral view; sperm duct slightly curved in ventral view; dRTA slender and straight, with rounded tip, vRTA short and stout from retrolateral view; both cymbium and tibia elongated, cymbium slightly longer than tibia.

Female: Total length (n=3) 21.20–21.40. One paratype: total length 21.40; prosoma 7.40 long, 6.80 wide; opisthosoma 14.00 long, 9.80 wide. Dorsal prosoma brown, laterally with wide reddish-brown patches, lateral and posterior margins dark brown. Eye diameters and interdistances: AME 0.35, ALE 0.49, PME 0.39, PLE 0.48; AME–AME 0.29, AME–ALE 0.08, PME–PME 0.39, PME– PLE 0.62. MOA 1.00 long, anterior width 0.88, posterior width 1.17. Clypeus height 0.38. Leg measurements: I 24.60 (7.20, 2.80, 6.50, 5.80, 2.30), II 27.30 (8.40, 3.10, 7.40, 6.10, 2.30), III 21.50 (6.90, 2.50, 4.60, 5.30, 2.20), IV 25.70 (7.20, 2.60, 6.30, 6.80, 2.80). Leg formula: 2143. Leg spination: palp 131, 101, 2121, 1012; femur I–III 323, IV 321; patella 000; tibia I–III 2026, IV 2126; metatarsus I–II 1014, III 2026, IV 3036. Dorsal opisthosoma dark brown, median field of opisthosoma with two wide and short yellow patches, venter dark brown, with two longitudinal yellow lines ( Figs 38–39 ).

Epigyne ( Figs 40–41 , 46–48 ). Epigynal field wider than long, with two long and narrow anterior bands; lateral lobes fused, posterior margin of epigyne slightly bilobate; epigynal pockets running from latero-posterior to medioanterior, lateral furrows short and slant; lobal septum moderately wide to narrow and anteriorly covered by recurved rim; middle part of internal ducts with long parallel part; glandular appendages long and extending posteriorly in posterior half of internal duct system, its globose distal swelling; posterior part of spermathecae ovate; fertilisation ducts arising medio-posteriorly from spermathecae.

Distribution. China (Sichuan).

Figures

FIGURES 35 – 37. Sinopoda longiducta sp. nov., male holotype. 35 left palp, ventral; 36 – 37 embolus and embolic apophysis (36 ventral, 37 prolateral). Scale bars: 35: 1 mm; 36 – 37: 0.2 mm.

FIGURES 42 – 48. Sinopoda longiducta sp. nov. 42 – 44 left palp of male holotype (42 prolateral, 43 ventral, 44 retrolateral); 45 embolus and embolic apophysis, ventral; 46 – 48 female paratype (46 epigyne ventral 47 internal duct system dorsal, 48 right half of internal duct system lateral). Scale bar: 42 – 48: 0.5 mm.

FIGURES 38 – 41. Sinopoda longiducta sp. nov., female paratype. 38 – 39 habitus (38 dorsal, 39 ventral); 40 epigyne, ventral; 41 internal duct system, dorsal. Scale bars: 38 – 39: 5 mm; 40 – 41: 0.5 mm.