Mallinella angustissima, 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 : 198-200

publication ID	https://doi.org/ 10.11646/zootaxa.3369.1.1
DOI	https://doi.org/10.5281/zenodo.5254285
persistent identifier	https://treatment.plazi.org/id/933EDA4C-B9E0-FF5A-CBC2-FB80FCB23917
treatment provided by	Felipe
scientific name	Mallinella angustissima
status	sp. nov.

Treatment

Mallinella angustissima View in CoL sp. nov.

( Figs 843 View FIGURES 836–843. 836 , 845, 847 View FIGURES 844–849. 844–846, 848 , 852–853 View FIGURES 850–855. 850–851 , 856 View FIGURES 856–865. 856 , 901–906 View FIGURES 901–906. 901–904 )

Material examined. Holotype: ♂, MALAYSIA, Pahang State: Tioman Islands , pied du Gunung Kajang (02°47.181'N, 104°07.829'E), 160 m, rainforest, 2 October 2001, leg. L. Monod ( MHNG, TM –17) GoogleMaps . Paratypes: MALAYSIA, Pahang State: 1♂, near Genting Highland , 100–250 m (2°46’N, 104°08’E), 20 August 2004, leg. A. Schulz. ( MHNG, AS–04/04) GoogleMaps ; 1♀, ibidem, 600–1,000 m (2°46’N, 104°09’E), 22 August 2004, leg. A. Schulz. ( MHNG, AS –04/06) GoogleMaps ; Johor State: 1♂, Gunung Arong (02°33'12.1"N, 103°45'20.5"E), 20 m, rainforest, 15 km north of Mersing , 29–30 May 2004, leg. P.J. Schwendinger ( MHNG, MAL –04/06) GoogleMaps .

Diagnosis. Males can be distinguished by the elongated apico-prolateral process, in combination with a broad apical fold on the TA ( Fig. 901 View FIGURES 901–906. 901–904 ). Females can be confused with those of M. amblyrhyncha sp. nov. but differ by the triangular instead of the round dorsal hump ( Figs 892 View FIGURES 891–894. 891 cf. 905), and by the spherical posterior part of spermathecae ( Fig. 905 View FIGURES 901–906. 901–904 ).

Etymology. The specific epithet the superlative of the Latin adjective (angustus = narrow), referring to the apico-prolateral process on the TA of the male palp which is the longest and most slender among Mallinella species.

Description. Male (holotype). Total length 7.15; prosoma 4.30 long, 3.25 wide. Eye sizes and interdistances: AME 0.30, ALE 0.20, PME 0.20, PLE 0.20, AME–AME 0.12, AME–ALE 0.32, PME–PME 0.24, PME–PLE 0.48; MOQ: 0.60 long, 0.56 anterior width, 0.50 posterior width. Leg measurements: I 17.25 (4.14, 5.40, 4.32, 3.36), II 14.30 (3.60, 4.50, 3.58, 2.58), III 14.38 (3.78, 4.32, 3.86, 2.40), IV 19.88 (4.80, 5.86, 6.20, 3.20).

Coloration ( Figs 843 View FIGURES 836–843. 836 , 845 View FIGURES 844–849. 844–846, 848 ). Carapace orange-brown. Chelicerae brown. Sternum yellowish brown. Legs yellowish, except for coxae whitish. Dorsum of opisthosoma dark sepia, cardiac region pale. Dorsal pattern: first and second pairs fused, forming pale reniform patches; third pairs elongated, ovoid, obliquely arranged, larger than fourth and fifth pairs.

Palp ( Figs 852–853 View FIGURES 850–855. 850–851 , 901–904 View FIGURES 901–906. 901–904 ). Retrolateral margin of palpal tibia triangular, strongly pronounced. RTA elongated, broad at base, gradually tapered towards sharply pointed apex. TA rostrated; apico-prolateral process elongated, slender, sharply pointed, situated posterior to apico-prolateral fold; meso-retrolateral ridge connected to basal tooth. Embolic base ovoid, aligned in longitudinal direction; membranous area narrowed, almost indistinct. Embolus broad, gradually widening towards apex.

Female (paratype). Total length 7.60; prosoma 4.55 long, 3.28 wide. Eye sizes and interdistances: AME 0.28, ALE 0.20, PME 0.18, PLE 0.20, AME–AME 0.10, AME–ALE 0.34, PME–PME 0.24, PME–PLE 0.46; MOQ: 0.60 long, 0.50 anterior width, 0.48 posterior width. Leg measurements: I 18.45 (4.42, 5.78, 4.62, 3.58), II 15.30 (3.86, 4.80, 3.84, 2.76), III 15.38 (4.04, 4.62, 4.12, 2.56), IV 21.26 (5.14, 6.26, 6.62, 3.20).

Coloration. Carapace orange-brown. Chelicerae brown. Sternum reddish brown. Legs yellowish. Dorsum of opisthosoma sepia. Dorsal pattern: first and second pairs used together, forming pale reniform patches; third to fifth pairs represented by pale ovoid spots, third ones largest, obliquely arranged.

Genitalia ( Figs 586 View FIGURES 584–586. 584–586 , 905–906 View FIGURES 901–906. 901–904 ). Epigynal plate quadrangular, almost as wide as long; posterior margin rebordered, protruding over epigastric furrow. Internal genitalia without clear separation between insemination ducts and spermathecae. Spermathecae divided into upper and lower regions: upper part triangular in dorsal view, bluntly pointed, provided with triangular dorsal tubercle; lower part spherical.

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

Distribution. Eastern Malay Peninsula and Tioman Island.