Published September 30, 2011 | Version v1
Taxonomic treatment Open

Walckenaeria saetigera V. & Tanasevitch 2011, sp. n.

Authors/Creators

Description

Walckenaeria saetigera sp. n. Figs 105-113, 119

HOLOTYPE: Ƌ, INDIA, Meghalaya, above Shillong, Khasi Hills, northern slope, 1850-1950 m a.s.l., primary forest near Shillong Peak, sifting litter; 25.X.1978; leg. C. Besuchet & I. Löbl [27].

PARATYPES: 2 ♀, from same locality, collected together with holotype. – 1 ♀, Meghalaya, above Cherrapunjee, Khasi Hills, 1200 m a.s.l., forest, near foot of rock, sifting litter; 26.X.1978; leg. C. Besuchet & I. Löbl [28b]. – 1 Ƌ, Khasi Hills, Weiloi, 1700 m a.s.l, sifting in forest; 27.X.1978; leg. C. Besuchet & I. Löbl [31].

ETYMOLOGY: The species name is a Latin adjective meaning “carrying bristles”, referring to the group of bristles on the male palpal tibia of this species.

DIAGNOSIS: The new species is characterized by the peculiar shape of the male carapace and the shape of the palpal tibia. The epigyne is also well distinct from that of congeners.

DESCRIPTION: Male (holotype). Total length 2.30. Carapace 1.08 long, 0.75 wide, modified as shown in Figs 105-107, pale orange-yellow. Chelicerae 0.30 long, unmodified. Legs pale orange-yellow. Leg I 2.81 long (0.83+0.25+0.73+0.60+0.40), IV 2.94 long (0.83+0.23+0.83+0.65+0.40). Chaetotaxy 2.2.1.1, spines very thin, their length about same as diameter of segment or a little longer. TmI 0.53. All metatarsi with a trichobothrium. Palp (Figs 109-113): Tibia sickle-shaped, dorsal surface bearing a group of short stout bristles. Paracymbium small, L-shaped. Distal suprategular apophysis distally narrow, claw-shaped. Radical part of embolic division fusiform, with a large conical outgrowth near base of embolus. Embolus relatively short, curved to a semicircle. Abdomen 1.15 long, wide, 0.75, grey.

Female. Total length 2.33. Carapace 1.08 long, 0.80 wide, unmodified. Chelicerae 0.35 long, unmodified. Leg I 3.11 long (0.90+0.30+0.83+0.65+0.43), IV 3.29 long (0.92+0.28+0.88+0.78+0.43). TmI 0.45. Abdomen 1.15 long, 0.78 wide. Epigyne (Fig. 108, 119): Aperture fully covered by tapered ventral plate, with a transversal wrinkle posteriorly. Receptacles oval, well visible on both sides of ventral plate. Body and leg coloration, as well as chaetotaxy, as in male.

VARIABILITY: The shapes of the male carapaces in the holotype and the paratype are slightly different (Fig. 105 cf. Fig. 107).

TAXONOMIC REMARKS: The epigyne bears some resemblance to that of the representatives of the subgenus Wideria Simon, 1864, sensu Wunderlich (1972), but the embolic division shows similarities to that of the subgenus Prosopotheca Simon, 1884.

DISTRIBUTION: Known from Meghalaya, northeastern India.

Notes

Published as part of Tanasevitch, Andrei V., 2011, Linyphiid spiders (Araneae, Linyphiidae) from Pakistan and India, pp. 561-598 in Revue suisse de Zoologie 118 (3) on pages 595-596, DOI: 10.5962/bhl.part.117817, http://zenodo.org/record/6312018

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Linked records

Additional details

Biodiversity

Event date
1978-10-25 , 1978-10-26
Verbatim event date
1978-10-25 , 1978-10-26/27
Scientific name authorship
V. & Tanasevitch
Kingdom
Animalia
Phylum
Arthropoda
Order
Araneae
Family
Linyphiidae
Genus
Walckenaeria
Species
saetigera
Taxon rank
species
Taxonomic status
sp. nov.
Type status
holotype , paratype
Taxonomic concept label
Walckenaeria saetigera Tanasevitch, 2011

References

  • WUNDERLICH, J. 1972. Zur Kenntnis der Gattung Walckenaeria Blackwall 1833 unter besonderer Berucksichtigung der europaischen Subgenera und Arten (Arachnida: Araneae: Linyphiidae). Zoologische Beitrage (N. F.) 18: 371 - 427.