The pholcid spiders from Sri Lanka: redescription of Pholcus ceylonicus and description of a new genus (Araneae: Pholcidae)
Author
Huber, Bernhard A.
Author
Benjamin, Suresh P.
text
Journal of Natural History
2005
2005-11-25
39
37
3305
3319
http://dx.doi.org/10.1080/00222930500145123
journal article
10.1080/00222930500145123
1464-5262
4581703
Wanniyala
new genus
Type
species.
Wanniyala agrabopath
,
new species
.
Etymology
Named for the Wanniyala-Aetto or ‘‘forest people’’, an indigenous people of
Sri Lanka
, commonly known as Veddahs. They are the earliest inhabitants with any living descendants in
Sri Lanka
. They have lived in their forest environment as hunter-gatherers for the past 18,000 years, but are now endangered due to rapid development and destruction of the forest habitat.
Diagnosis
Small pholcids (body length about
2 mm
) with six eyes, long legs, and globular abdomen, distinguished from other pholcines by the male genitalia [procursus with distinctive distal hinged sclerite (
Figure 7a, b, e, f
), ventral transparent projection (t
1 in
Figure 7
), prolateral proximal projection, and brush-like structure (t
3 in
Figure 7
), bulb with tubular embolus and single sclerotized projection (
Figure 6a
)], and by the combination of modified clypeus (
Figure 6c
), reduction of ALS spigots (
Figure 8b, c
), and large number of short vertical hairs on male metatarsi.
Description
See descriptions of the two species below.
Distribution
Known only from
Sri Lanka
(
Figure 9
). The genus might also occur in
India
, but the pholcid fauna of
India
has barely been studied.
Composition and relationships
The genus includes two named species (newly described below) as well as one unnamed species from Inginiyagala (7
°
139N, 81
°
329E), Badulla District (one male), and from Rattota (7
°
319N, 80
°
419E), Matale District (one male) (3634–
35 in
MZT
). The latter species is not described because the female remains unknown.
Wanniyala
is clearly a representative of pholcines
sensu
Huber (2000)
. Within this subfamily, relationships remain largely obscure. This is mainly due to the fact that the large genus
Pholcus
and some potential relatives have never been revised.