Dumoga buratino, Tanasevitch, 2017

Tanasevitch, Andrei V., 2017, New genera and new species of the family Linyphiidae from Borneo, Sumatra and Java (Arachnida, Araneae), Revue suisse de Zoologie 124 (1), pp. 141-155 : 142

publication ID

https://doi.org/ 10.5281/zenodo.322672

DOI

https://doi.org/10.5281/zenodo.5698122

persistent identifier

https://treatment.plazi.org/id/03C487DD-FFBF-FFC9-8872-DCBEFBDCF3B3

treatment provided by

Plazi

scientific name

Dumoga buratino
status

sp. nov.

Dumoga buratino View in CoL sp. nov.

Figs 1-8 View Figs 1 - 10 , 11-18 View Figs 11 - 21

Holotype: Male; Indonesia, Sumatra, Jambi Province, Mt Kerinci, footpath to summit, N of Kersik Tua , 1800- 1980 m a.s.l., montane rain forest, sifting; 16.II.2000; leg. P. Schwendinger [Sum-00/12].

Paratypes: 1 male, 2 females; collected together with the holotype.

Diagnosis: The new species is characterized by the peculiar shape of its carapace and highly modified palpal tibia in the male, as well as by the rounded dorsal plate of the epigyne in the female.

Etymology: The specific epithet is a noun in apposition, referring to the long-nosed Russian fairy-tale character “Buratino”.

Description: Male (paratype). Large-sized Erigoninae , total length 3.13, habitus as shown in Fig. 1 View Figs 1 - 10 . Carapace modified ( Figs 2-3 View Figs 1 - 10 ), 1.65 long, 1.00 wide, reddish brown, with a pale, globular elevation in the middle. Anterior part of carapace protruded forwards, bearing anterior median eyes. Sulci situated at base of central globular outgrowth. Chelicerae 0.63 long, mastidion absent, anterior margin of fang groove with 5 strong teeth. Legs pale reddish brown. Leg I 6.93 long (1.95+0.35+1.78+1.55+1.30), leg IV 5.78 long (1.80+0.28+1.45+1.38+0.87). Chaetotaxy 2.2.1.1, length of spines about 2 diameters of segment. TmI 0.40. All metatarsi with trichobothrium. Palp ( Figs 11-15 View Figs 11 - 21 ): Tibia massive, highly modified. Proximal part of paracymbium narrow, middle part with a large rounded outgrowth, distal part hook-shaped. Suprategular apophysis complex, with several outgrowths. Column relatively large, looking like a spongy membraneous tissue. Median membrane narrow, protruded forwards. Radix very small, embolus thin, long, making two loops. Abdomen 1.50 long, 1.00 wide, dorsally pale, with several dark spots as shown in Fig. 1 View Figs 1 - 10 .

Female. Total length 2.75, habitus as shown in Fig. 4 View Figs 1 - 10 . Carapace 1.33 long, 1.00 wide, unmodified, reddish brown, with a pale spot in the middle. Chelicerae 0.63 long, anterior margin of fang groove with 5 strong teeth. Legs reddish brown. Leg I 6.34 long (1.68+0.38+1.65+1.53+1.10), leg IV 5.18 long (1.50+0.33+1.35+1.30+0.70). Chaetotaxy as in male. TmI 0.44. Abdomen 1.50 long, 1.05 wide, dorsal pattern as shown in Fig. 4 View Figs 1 - 10 . Epigyne ( Figs 5-8 View Figs 1 - 10 , 16-18 View Figs 11 - 21 ) prominent, aperture lacking, dorsal plate rounded, receptacles elongated.

Taxonomic remarks: The new species seems to be most similar to D. complexipalpis Millidge & Russell- Smith, 1992, known from males, but clearly differs by the shape of its carapace, by the arrangement of apophyses on the palpal tibia, as well as by the shape of the distal suprategular apophysis.

Distribution: Known only from the type locality on Sumatra Island, Indonesia.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Linyphiidae

Genus

Dumoga

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