Sparianthina adisi, Jaeger & Rheims & Labarque, 2009

Jaeger, Peter, Rheims, Cristina & Labarque, Facundo, 2009, On the huntsman spider genera Sparianthina Banks, 1929 and Anaptomecus Simon, 1903 from South and Central America (Araneae, Sparassidae), ZooKeys 16 (16), pp. 115-147 : 130-132

Sparianthina adisi sp. n.

urn:lsid:zoobank.org:act:289320CB-B8E3-4C09-90BB-9DA20656D9C5

Figs 65-67 , 77

Types. ♁ holotype, Venezuela, Merida, ULA Biological Reserve, 20 km SE Azulita [08°17’N, 72°05’W], 28.VI.–3.VIII.1989, S. and J. Peck (AMNH) . Paratypes: 1

♁, same data as for holotype ( AMNH) ; 2 ♁♁, Venezuela, Merida, Mucuy, Tabay [08°38’N, 71°04’W], 19.VI.–24.VII.1989, FIT, S. and J. Peck ( IBSP 99860 ; SMF: PJ 1721 ) ; 1 ♁, Venezuela, Merida, El Valle , 15km NE Merida, 24.VI.–2.VIII.1989, S. and J. Peck ( AMNH) .

Further material examined. VENEZUELA. Merida: 3 ♁♁, Mucuy, Send. Lag. Suero, Tabay [08°38’N, 71°04’W], 19.VI.–24.VII.1989, S. & J. Peck (2 ♁♁ AMNH; 1 ♁ IBSP 99861 ) .

Etymology. The species is dedicated to Joachim Adis (1950-2007) for his important contributions about the Amazonian forest and its ecology and for his longstanding contribution to the study of arachnids in South America; name in genitive case.

Diagnosis. The males of Sparianthina adisi sp. n. are distinguished from those of the remaining species of the genus by the bifid RTA with similar sized branches ( Figs 66-67 ). It resembles Sparianthina deltshevi sp. n. by the long and slender projection at the retrolateral base of the embolus ( Figs 66 , 69 ), but is distinguished from this species by exhibiting a much narrower projection.

Description. Male (AMNH, holotype). Total length 6.6. Prosoma: 3.0 long, 3.0 wide. Opisthosoma: 3.5 long, 2.3 wide. Eye diameters and interdistances: AME 0.16, ALE 0.22, PME 0.20, PLE 0.26, AME–AME 0.08, AME–ALE 0.04, PME–PME 0.22, PME–PLE 0.22, AME–PME 0.16, ALE–PLE 0.18. Legs: I: femur 4.3, patella 1.5, tibia 4.5, metatarsus 3.9, tarsus 1.4, total 15.6; II: 4.9, 1.6, 4.9, 4.2, 1.6, 17.2; III: 3.9, 1.3, 3.4, 3.3, 1.2, 13.1; IV: 4.5, 1.2, 4.1, 4.2, 1.5, 15.5. Spination: femur I–III: p1-1-1; d0-1-1; r1-1-1; femur IV: p1-1-1; d0-1-1; r0-0-1; tibia I–II: v2-2-2-2-0; tibia III–IV: p1-0-1; d0-0-1; r1-0-1; v2-2-0; metatarsus I–II: v2-2-0; metatarsus III: p1-1- 0; r1-1-0; v2-2-0; metatarsus IV: p1-1-2; r1-1-2; v2-2-0.

Palp as in diagnosis. Embolus and conductor arising from tegulum at a 9-o’clockposition ( Fig. 66 ). Ventral tibial lobe small and slightly shifted retrolateral. Tegular subembolic projection notched prolaterally to the subtegulum. Conductor hyaline and laminar. Sperm duct running submarginally ( Figs 65-67 ).

Colouration. Prosoma orange-brown, slightly darker at eye area and brown along fovea and thoracic striae. Chelicerae orange. Pedipalps dark orange. Legs orange with light brown markings at spine bases. Sternum yellow with orange margins. Gnathocoxae pale yellow. Labium pale yellow, light brown at base. Opisthosoma pale yellow ( Fig. 77 ).

Female unknown.

Variation. Males (n=8): total length 6.2-7.4; prosoma 3.0-3.6; femur I 3.6-4.5.

Distribution. North-western Venezuela, state of Merida.

Figures

Figures 65-67. Sparianthina adisi sp. n. from Venezuela (♁ holotype). 65-67 Left ♁ palp (65 prolateral 66 ventral 67 retrolateral).

Figures 74-79. Sparianthina spp., habitus, dorsal. 74-75 S. selenopoides (74 ♁ 75 ♀) 76 S. milleri comb. n., ♁ 77 S. adisi sp. n., ♁ 78 S. deltshevi sp. n., ♁ 79 S. saaristoi sp. n., ♁.

Figures 68-70. Sparianthina deltshevi sp. n. from Venezuela (♁ holotype). 68-70 Left ♁ palp (68 prolateral 69 ventral 70 retrolateral).