Mallinella insulana, Dankittipakul, Pakawin, Jocqué, Rudy & Singtripop, Tippawan, 2010

Dankittipakul, Pakawin, Jocqué, Rudy & Singtripop, Tippawan, 2010, Five new Mallinella species from the Sundaland of Indonesia (Araneae, Zodariidae), Zootaxa 2636, pp. 21-36 : 32-34

Mallinella insulana sp. nov.

Figs 5–6 , 21–24

Types: Holotype: 3, INDONESIA, Bali, Lake Tamblingan, 1300 m, 30.x.1991, leg. I. Löbl [MHNG, AS- BA91/2].

Etymology: The specific epithet insulana , from the Latin insula meaning "island", refers to Bali.

Diagnosis: Mallinella insulana sp. nov. can be easily recognized by the TA with an elongated, slender apico-prolateral process ( Fig. 21 ) and two sharply pointed apical denticles together with a pronounced basoprolateral tooth ( Figs 21–23 ).

Description: Male (holotype). Total length 6.9; prosoma 3.40 long, 2.78 wide; opisthosoma 3.50 long, 2.60 wide. Eye sizes and interdistances: AME>PME>ALE=PLE; ratio: AME 1.0, ALE 0.46, PME 0.80, PLE 0.48, AME-AME 0.38, AME-ALE 0.98, PME-PME 0.68, PME-PLE 1.82; MOQ: 1.00 anterior width, 0.75 posterior width, 0.71 long. Leg formula: 4123. Leg measurements: I 12.8 (3.5, 3.6, 3.4, 2.3), II 12.3 (3.3, 3.4, 3.3, 2.3), III 11.8 (3.2, 3.5, 3.1, 2.0), IV 13.3 (3.4, 3.8, 3.5, 2.6).

Pattern and coloration ( Figs 5–6 ): Carapace pear-shaped, longer than wide, widest posteriorly, in profile highest just in front longitudinal fovea; tegument smooth, dark brown in color. Chelicerae brown. Labium triangular, yellowish brown, basal and lateral margins brown. Endites brown, apices yellowish brown, with anteromesal brush of black hairs. Sternum orange brown, triangular, with bluntly pointed extensions fitting coxal and intercoxal concavities; anterior margin straight, posterior margin protruding; pairs of circular pits running along lateral margins. Legs yellowish, except distal portion of tibia and metatarsus yellowish brown.

Opisthosoma ovoid. Dorsal scutum lightly sclerotized, poorly delimited. Dorsum dark purplish, covered with fine pubescence, mottled with numerous minute pale spots. Dorsal pattern represented by four pairs of pale, round spots, followed by short transverse chevrons. Venter purplish, laterally with pale median longitudinal bands. Posterior ventral spines thin and elongate, apices bluntly pointed, arranged in a single row.

Palp ( Fig. 21–24 ): Palpal tibia with elevated triangular ridge directed anteriad. Mesolateral tibia apophysis triangular, pointing retrolaterad, apex blunt. RTA strongly broad at base, gradually tapering towards its bluntly pointed apex. Cymbial fold broad, occupying approximately half length of cymbium. TA elongated, slightly wider posteriorly, with baso-prolateral ridge and sharp tooth, apically with two triangular denticles and apicoprolateral process directed mesad. Conductor apically sharply pointed, directed ventrad, with triangular dorsal lobe directed backwards, and deep prolateral excavation accommodating embolus. Embolic base semicircular, slightly concaved anteriorly, rounded posteriorly, with broad, triangular anterior membrane running obliquely. Embolus originating at 270°, bifurcated, broad, grooved, branching subapically: lateral ramus digitiform, directed ectad, mesal ramus longer, apex lanceolated.

Female. Unknown.

Natural history: The type specimens were collected in primary lowland forests at high elevation.

Distribution: Belitung Island, Indonesia ( Fig. 51 ).

Figures

FIGURE 51. Records of Mallinella species treated in the present study.

FIGURES 5 – 8. Mallinella insulana sp. nov., holotype (5 – 6). M. bifida sp. nov., holotype (7) and paratype (8). Habitus, dorsal (5, 7 – 8) and ventral (6). Scale bar = 1.0 mm (for 5 – 8).

FIGURES 18 – 24. Mallinella albomaculata, new material from Borneo (18 – 20). M. insulana sp. nov., holotype (21 – 24). Spermatheca, anrterior (18), contra-lateral (19), dorsal (20). Male palp, ventral (21). TA, prolateral (23), retrolateral (22). Apex of embolus, prolateral (24). Scale bar = 0.1 mm (18 – 21).