On Venezuelan pholcid spiders (Araneae, Pholcidae)
Author
Huber, Bernhard A.
33607F65-19BF-4DC9-94FD-4BB88CED455F
Zoological Research Museum Alexander Koenig, Bonn, Germany.
b.huber@leibniz-zfmk.de
Author
Villarreal, Osvaldo
679C385E-B068-4351-9D2F-97753E534C26
Museo del Instituto de Zoología Agrícola, Universidad Central de Venezuela, Maracay, Venezuela. & Museu Nacional / UFRJ, Rio de Janeiro, Brazil.
osvaldovillarreal@gmail.com
text
European Journal of Taxonomy
2020
2020-10-01
718
1
317
journal article
10.5852/ejt.2020.718.1101
4069574
F9E9A91E-488C-4DB1-9361-E788E9AC5BC1
Metagonia
Simon, 1893
Notes
Eight species of
Metagonia
are listed here for
Venezuela
. They represent only two of the seven species groups proposed in
Huber
et al.
(2018)
: the
delicata
group [
M. beni
Huber, 2000
;
M. latigo
Huber
sp. nov.
;
M. mariguitarensis
(
González-Sponga, 1998
)
;
M. guianesa
Huber
sp. nov.
], with apparent affinities to the Amazonian fauna; and the
rica
group [
M. conica
(Simon, 1893)
;
M. juliae
González-Sponga, 2010
;
M. triocular
(González-Sponga, 2011)
;
M. guttata
Huber
sp. nov.
], with apparent affinities to the Central American fauna (and probably the Colombian fauna which is essentially unknown).
Compared to relatively well-studied countries like
Mexico
(25 described +2 undescribed species available to the first author) and
Brazil
(18 +21) this is a low number of species, suggesting that the Venezuelan fauna may still be seriously undersampled. However, much of the diversity in
Mexico
is the result of extensive radiations in caves (
Gertsch 1986
), and much of the diversity in
Brazil
is in three species groups of
Metagonia
that are restricted to the Atlantic Forest and are
not
present in
Venezuela
: the
bifida
,
furcata
, and
petropolis
groups (according to the classification in
Huber
et al.
2018
). Thus, while there are certainly numerous species of
Metagonia
that remain to be discovered in
Venezuela
, the diversity may be relatively low indeed.
The remaining two species groups proposed in
Huber
et al.
(2018)
(
potiguar
and
taruma
groups) might be present in
Venezuela
but have
not
yet been found.