Mallinella filifera, 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 : 83-87

Mallinella filifera sp. nov.

( Figs 313 , 337–340 )

Material examined. Holotype: ♂, INDONESIA, Sumatra, Jambi Province: Kerinci Seblat NP, primary forest, 860 m, near river, 20–30 July 1988, leg. Suh. Djojosudharmo ( RMHN) . Paratypes: 2♂, same data as holotype ( MHNG – PDC) .

Diagnosis. Males of M. filifera sp. nov. are easily recognized by the strongly reduced bifid apical process on the TA and by the presence of a thin triangular flange situated medially on the filiform embolus ( Figs 337–340 ). Its somatic characters closely resemble those of M. immaculata and M. filifera sp. nov. but this new species is covered with numerous erect bristles.

Etymology. The specific epithet is a latinized adjective derived from the Latin words (filum = thread and ferre = carrying) and refers to the filiform embolus of this new species.

Description. Male (holotype). Total length 8.07; prosoma 3.96 long, 3.25 wide. Eye sizes and interdistances: AME 0.10, ALE 0.08, PME 0.06, PLE 0.06, AME–AME 0.07, AME–ALE 0.10, PME–PME 0.10, PME–PLE 0.58; MOQ: 0.30 long, 0.26 anterior width, 0.24 posterior width. Leg measurements: I 11.00 (3.02, 3.48, 2.42, 2.16), II 10.72 (2.78, 3.37, 2.65, 1.92), III 10.60 (2.90, 3.24, 2.76, 1.68), IV 12.91 (3.01, 4.22, 3.96, 1.72).

Coloration ( Fig. 313 ). Carapace uniform dark reddish brown, integument moderately granulated. Sternum dark reddish brown. Chelicerae dark brown. Legs orange-brown. Opisthosoma sepia, background mottled with numerous minute pale spots. Dorsal pattern: first pair represented by paired round patches; second pair by two medially fused bands; third and fourth pairs by short, narrowed bands. Dorsal scutum indistinct.

Palp ( Figs 337–340 ). RTA subtriangular in ventral view, apex bluntly pointed. Cymbial fold broad, reaching approximately 3/4 length of cymbium. TA terminally with bifid apical process, its two diverging branches greatly reduced; apico-prolateral fold slightly elevated in ventral view; baso-prolateral fold prominent, excavated medioprolaterally. Tegular spine relatively large, apex blunt. Embolic base triangular, tapered posteriorly, arranged in longitudinal direction; membranous area triangular, relatively broad. Embolus filiform, elongated, originating at 180°, thin triangular flange situated at half its length.

Female. Unknown.

Natural history. The types of M. filifera sp. nov. were collected in a pristine rainforest.

Distribution. Known only from the type locality in Jambi, Sumatra.

Figures

FIGURES 310–313. 310. Mallinella immaculata, male paratype. 311. Mallinella immaculata, female from Thailand. 312. M. innovata sp. nov., holotype. 313. M. filifera sp. nov., holotype. 310–313. Habitus, dorsal.

FIGURES 336–340. 336. Mallinella decorata. 337–340. M. filifera sp. nov., holotype. 336–337. Male palp, ventral. 338. TA, prolateral. 339. Middle portion of embolus, ventral. 340. Ditto, prolateral.