The spider family Micropholcommatidae (Arachnida: Araneae: Araneoidea): a relimitation and revision at the generic level
Author
Rix, Michael
Western Australian Museum, Welshpool DC, Perth, Australia
Author
Harvey, Mark
Western Australian Museum, Perth, Welshpool, Australia
text
ZooKeys
2010
2010-02-22
36
36
1
321
journal article
10.3897/zookeys.36.306
4db6b327-7482-432e-a5f6-36f91c79fef3
1313–2970
576620
ADCACC88-6C78-4386-8E33-3F98234ECE92
Epigastrina
loongana
Rix & Harvey
,
sp. n.
urn:lsid:zoobank.org:act:
AEFBBEA7-2BF1-45B1-A755-FFD3F153ED95
Figs 63D
,
64
, 213
Type
material.
Holotype
female:
Mostyn Hardy Cave
(
Old Tourist Cave
) (L-4),
Loongana
karst,
Tasmania
,
Australia
, dark zone,
41°25'S
,
146°00'E
,
22.II.1969
,
A. & T. Goede
(
AMS
KS72935
).
Etymology
.
The specific epithet is a noun in apposition, taken from the
type
locality.
Diagnosis
.
Females of
Epigastrina loongana
can be distinguished from all other described congeners by the presence of only six reduced eyes (
Fig. 64B
). Males are unknown.
Description
.
Holotype
female
: Total length 1.10. Carapace 0.49 long, 0.40 wide. Abdomen 0.69 long, 0.49 wide. Leg I femur 0.41. Cephalothorax, legs very pale tanyellow; abdomen pale cream, with darker tan-yellow epigyne. Carapace raised anteriorly, not fused to sternum except around petiole; dorsal surface of pars cephalica slightly convex in lateral view. Six reduced eyes present on anterior margin of pars cephalica; AME absent; PME separated by twice their own diameter. Chelicerae without bulging anterior projections; promargin without peg teeth. Legs relatively short (leg I femur-carapace ratio 0.84); macrosetae absent. Abdomen oval, covered with hair-like setae; dorsal scute and lateral sclerotic strips absent. Pedipalp entire, five-segmented. Epigyne heavily sclerotised externally, with distinctive, wedge-shaped epigastric plate (
Fig. 64C
); spermathecae globular, connecting to parallel, filiform insemination and fertilisation ducts (
Fig. 63D
).
Distribution
.
Known only from
Mostyn Hardy Cave
in the Loongana karst of north-central
Tasmania
(Fig. 213).
Remarks.
Epigastrina loongana
is a troglomorphic species with reduced eyes, otherwise very similar to
E. fulva
and
E. typhlops
.