Kelawakaju intexta Maddison & Ruiz, 2022

Maddison, Wayne P., Ruiz, Gustavo R. S., Ng, Paul Y. C., Vishnudas, Ettukandathil Haridas & Sudhikumar, Ambalaparambil V., 2022, Kelawakaju gen. nov., a new Asian lineage of marpissine jumping spiders (Araneae, Salticidae, Marpissina), ZooKeys 1130, pp. 79-102 : 79

Kelawakaju intexta Maddison & Ruiz sp. nov.

Figs 3 , 6 , 11 , 21 , 22 , 29-34

Type material.

Holotype: male (SWK12-3752) in UBCZ from MALAYSIA: Sarawak: Lambir Hills Nat. Pk., headquarters area, 4.197 to 4.198°N 114.0400°E to 114.0402°E, 50 m elev., 30 March to 6 April 2012 Maddison/Piascik/Ang WPM#12-104. Paratype: male (SWK12-0523) in UBCZ from MALAYSIA: Sarawak: Bako Nat. Pk. Ulu Assam Trail, 1.712°N, 110.445°E to 1.713°N, 110.448°E, 30-80, m elev., 8 March 2012, Maddison/Piascik/Ang/Lee WPM#12-005.

Etymology.

Latin, interwoven, referring to the textile-like pattern of coloured scales on the body.

Diagnosis.

Body covered with a dense and intricate pattern of pale scales, white on the abdomen and slightly golden on the carapace (Figs 29 , 32 ), and thus paler in appearance than K. mulu . Embolus arising at 9 to 10 o’clock, longer than in any other Kelawakaju (Fig. 22 ).

Description.

Male (based on holotype). Carapace length 2.45; abdomen length 3.45. Carapace dark brown, with white scales on cephalic region, sparse on thoracic region and with line of white scales along borders of carapace. Clypeus very narrow. Chelicera dark brown, slightly projected, with mastidion. Retromarginal tooth with two cusps, the more lateral larger (Fig. 6 ). Palp light brown. RTA elongate. Embolus narrow, gently curving from its base, longer than half the length of the tegulum, arising prolaterally from the tegulum. Endite dark brown. Labium dark brown and sternum light brown. Leg I dark brown, with proximal portion of femur, mid tibia and metatarsus light brown, and tarsus yellow; II-IV light brown. Length of femur I 2.10, II 1.70, III 1.40, IV 1.65; patella + tibia I 3.10, II 2.40, III 1.65, IV 2.35; metatarsus + tarsus I 1.85, II 1.75, III 1.50, IV 1.70. Leg spination reduced: Femur I-II d1-1-0, p0-0-1, III d1-1-1, p0-0-1, IV d1-1-1, r0-0-1, patella I-IV 0, tibia I v2-2-2, II v1r-1r-1p, III-IV 0, metatarsus I-II v2-2, III 0, IV v0-0-1p. Abdomen dorsally with three pairs of dark marks with dark scales, among light areas with white scales; entirely covered by scutum; ventrally gray, with dark brown ring around spinnerets. Spinnerets yellow.

Female unknown.

Natural history.

The paratype from Bako was found along a trail in a forest.

Kelawakaju singapura species group

The Kelawakaju singapura species group includes only K. singapura , distinctive for the robust male chelicerae, short and stout embolus, and the long palp tibia (longer than the tibial apophysis). It is larger-bodied, like the Kelawakaju frenata group, but has a longer ocular quadrangle, and the abdominal markings are inverted compared to the Kelawakaju frenata group: dark laterally, paler medially, similar to K. intexta of the Kelawakaju mulu group. There is no clear indication to which of the other two groups K. singapura is more closely related, and hence we keep it separate.

Figures

Figures 2 - 9. Chelicerae of Kelawakaju species 2 - 4 oblique view with carapace 5 - 9 ventral view 2 K. mulu male holotype 3 K. intexta male holotype 4 K. frenata male from Guangxi 5 K. mulu male holotype 6 K. intexta male holotype 7 K. singapura male holotype 8 K. frenata male from Guangxi 9 K. frenata female from Guangxi. Scale bars: 1.0 mm.

Figures 10 - 15. Carapaces of Kelawakaju males 10 K. mulu holotype 11 K. intexta holotype 12 K. singapura holotype 13 K. frenata from Guangxi, Dongxing 14 K. leucomelas holotype 15 K. sahyadri holotype. Scale bars: 1.0 mm.

Figures 16 - 22. Kelawakaju mulu species group, genitalia 16 - 20 K. mulu 16 holotype male palp, ventral 17 same, retrolateral 18 paratype female SWK 12 - 2639 epigyne, ventral 19 same, vulva, dorsal 20 same, ventral 21, 22 K. intexta holotype male palp 21 retrolateral 22 ventral. Scale bars: 0.1 mm.

Figures 29 - 34. Kelawakaju intexta 29 - 31 holotype male SWK 12 - 3752 32 - 34 paratype male SWK 12 - 0523. Scale bars: 1.0 mm.