Workmania botuliformis, Dankittipakul & Jocqué & Singtripop, 2012

Dankittipakul, Pakawin, Jocqué, Rudy & Singtripop, Tippawan, 2012, Systematics and biogeography of the spider genus Mallinella Strand, 1906, with descriptions of new species and new genera from Southeast Asia (Araneae, Zodariidae) 3369, Zootaxa 3369 (1), pp. 1-327 : 311-312

Workmania botuliformis sp. nov.

(Figs 1383–1384, 1387–1390, 1400–1405)

Material examined. Holotype: ♂, THAILAND, Phang Nga Province: Khao Sok NP, 30 km east of Takua Pa (8º55'N, 98º36'E), 50 m, lowland evergreen rainforest, 24 March 2006, leg. P.J. Schwendinger ( MHNG) . Paratypes: 2♂, 4♀, same data as holotype ( MHNG, TNHM) . MALAYSIA, Perak State: 1♂, Tioman Islands: footpath from Tekek to Juara (02º48'39.4"N, 104º10'36.6"E), 240–300 m, disturbed rain forest, 29 June 2001, leg. P.J. Schwendinger ( MHNG, SIM –01/08) ; 1♂, 1♀, west side, 2 km southeast of Kg. Genting (02º 47'N, 104º 8'E), 100 m, 28 June 2001, leg. A. Schulz & K. Vock ( MHNG, M01–07 ) ; 1♀, west side, 2 km southeast of Kg. Genting , 50 m, 23 June 2001, leg. A. Schulz & K. Vock ( MHNG, M01–01 ) ; 1♀, west side, 2 km southeast of Kg. Genting (02°47'N, 104°8'E), 50 m, 23 June 2001, leg. A. Schulz & K. Vock ( MHNG, M01–1 ) ; 1♀, ibidem, 24 June 2001 ( MHNG, M01–8 ) ; 1♂, ibidem, pied du Gunung (02º47'181"N, 104º07'892"E), rain forest, 160 m, 2 October 2001, leg. L. Monod ( MHNG, TM –17) . Johor State, Gunung Arong (02°33'12.1"N, 103°45'20.5"E) : 4♀, 20 m, rainforest, 15 km north of Mersing , 29–30 May 2004, leg. P.J. Schwendinger ( MHNG, MAL –04/06). Lombong : 2♀, nr. Kota Tinggi , 200–500 ft., 28–29 February 1983, leg. R.T. Schuh & B. M. Massie, Berlese sample in degraded primary forest ( AMNH) . SINGAPORE: 1♀, Bukit Timah Nature Reserve (01°23'N, 103°47'E), 100 m, 16 August 2004, leg. A. Schulz ( MHNG, AS –04/02) ; 1♀, March 1986, leg. J. & F. Murphy ( JFMC, coll. 13332). INDONE- SIA, Sumatra, West Sumatra Province : 1♀, Mt. Singgalang , 400–520 m, secondary forest, 9–24 June 1994 ( RMHN) .

Diagnosis. Males of M. botuliformis sp. nov. are recognized by the modified TA carrying a slender, V-shaped meso-prolateral process with round extremity (Fig. 1400), a feature that distinguishes them from the closely related M. juvenca comb. nov. Females can be confused with those of M. juvenca comb. nov., but have a larger semi-circular scape on the epigynal plate (Fig. 1392).

Etymology. The specific epithet is Latin adjective derived from botulus (= sausage) and refers to the peculiar shape of the spermathecae.

Description. Male (holotype). Total length 7.45; prosoma 4.45 long, 3.16 wide. Eye sizes and interdistances: AME 0.26, ALE 0.22, PME 0.22, PLE 0.22, AME–AME 0.10, AME–ALE 0.32, PME–PME 0.22, PME–PLE 0.56; MOQ: 0.62 long, 0.60 anterior width, 0.60 posterior width. Leg measurements: I 19.38 (4.52, 5.68, 5.56, 3.60), II 17.20 (4.22, 4.82, 4.74, 3.38), III 16.48 (3.98, 4.56, 4.68, 3.24), IV 22.42 (4.62, 6.16, 7.70, 3.90).

Coloration (Fig. 1383, 1387–1388). Carapace dark reddish brown. Chelicerae reddish brown. Sternum orange. Legs orange. Dorsum of opisthosoma sepia, cardiac region with pale longitudinal band. Dorsal pattern: first pair reniform; second and third pairs represented by pale oval patches obliquely arranged; fourth pair by transverse broad band; fifth pair pale patch situated far apart, medially with transverse band.

Palp (Figs 1400–1402). RTA broad at base, gradually tapered towards round apex, laterally constricted in retrolateral view. TA rostrated; apico-prolateral fold triangular, apex blunt, directed anteriad; apico-retrolateral fold triangular, directed mesad; meso-retrolateral fold cup-shaped, distinctly enlarged, curved anteriorly; meso-prolateral process slender, bending anteriad at half its length, apex rounded; baso-retrolateral tooth triangular in lateral view, connecting to elevated marginal ridge. Embolic base aligned in transverse direction, subtriangular, posterior margin convex; membranous part narrowed, triangular. Embolus broad, bifurcated, branching at half its length; lateral ramus apically rounded, directed ectad; mesal ramus represented by broad, semi-transparent flange, shorter than lateral one.

Female (paratype). Total length 7.45; prosoma 4.60 long, 3.20 wide. Eye sizes and interdistances: AME 0.28, ALE 0.22, PME 0.22, PLE 0.22, AME–AME 0.12, AME–ALE 0.36, PME–PME 0.22, PME–PLE 0.60; MOQ: 0.62 long, 0.60 anterior width, 0.58 posterior width. Leg measurements: I 19.38 (4.52, 5.68, 5.56, 3.60), II 17.18 (4.22, 4.38, 4.74, 3.38), III 16.48 (3.98, 4.56, 4.68, 3.24), IV 22.42 (4.62, 6.16, 7.70, 3.90).

Coloration (Figs 1384). Carapace dark reddish brown. Chelicerae reddish brown. Sternum orange. Legs orange. Dorsum of opisthosoma dark brown. Dorsal pattern: first pair represented by pale reniform patches; second and third pairs by pale oval patches obliquely arranged; fourth pair by two transverse bands medially connected; fifth pair by large pale patches situated far apart, with transverse band in between.

Genitalia (Figs 1392–1397, 1403–1405). Epigynal plate with two lateral lobes and semi-circular scape projecting over epigastric furrow. Spermathecae tubiform, distally rounded, no distinct separation between border of insemination ducts and spermathecae.

Natural history. Mallinella botuliformis sp. nov. inhabits evergreen lowland rainforests.

Distribution. Malay Peninsula, Singapore and Sumatra.