The first pararchaeid spider (Araneae: Pararchaeidae) from New Caledonia, with a discussion on spinneret spigots and egg sac morphology in Ozarchaea
Author
Rix, Michael G.
Author
Harvey, Mark S.
text
Zootaxa
2010
2414
27
40
journal article
10.5281/zenodo.194372
a725ca38-d204-4efc-a328-b0ea06e27492
1175-5326
194372
Ozarchaea westraliensis
Rix, 2006
Figs 32–35
Ozarchaea westraliensis
Rix, 2006
: 243
, figs 107–110, 119, 127.
Material examined.
AUSTRALIA
:
Western
Australia
:
1 female
, Mount Cooke,
32°25’26.9”S
,
116°18’39.0”E
, sifting wet leaf litter below ‘saddle’,
30 August 2009
, M. Rix, D. Harms, S. Harms, J.
Waldock (
WAM
T99059);
1 egg
sac, Cottonwood Crescent (formerly ‘Tuart Hill’) Bushland Reserve, Dianella, Perth,
31°52’S
,
115°51’E
,
20 August 2006
, M. Rix.
FIGURES 18–21.
Scanning electron micrographs of spinnerets of male
Ozarchaea harveyi
Rix
from near Banksiadale Dam, Western Australia: 18, anterior lateral spinnerets; 19, posterior median spinnerets; 20–21, posterior median and posterior lateral spinnerets. Arrows denote the anterior, mesal direction. AC—aciniform gland spigot; as—anterior seta; MAP 1º/2º—primary/secondary major ampullate gland spigot; mAP—minor ampullate gland spigot; PI—piriform gland spigot; t—tartipore.
Description of egg sac.
Similar in most respects to that described for
Anarchaea raveni
Rix, 2006
(see
Rix, 2006
, fig. 146), with two discrete protective layers comprising a remarkable silken complex (
Fig. 35
). Egg sac proper discoid, circular in dorsal profile, attached to substrate. Inner silken layer covering egg sac, attached to substrate around margins, comprised of fine, mesh-like silk. Outer silken layer complex, starshaped, forming protective three-dimensional ‘cap’ over inner layer and egg sac.
Remarks.
While a female spider was not collected with the described egg sac,
Ozarchaea westraliensis
is the only pararchaeid species recorded from Cottonwood Crescent Reserve, which is also the
type
locality of this species (
Rix 2006
).