Additions to the euophryine jumping spider fauna (Araneae: Salticidae) of Australia
Author
Richardson, Barry J.
text
Zootaxa
2022
2022-05-26
5141
3
249
269
journal article
61135
10.11646/zootaxa.5141.3.3
725cb3ad-2167-4e42-8cbe-54d5d690c674
1175-5326
6592703
F6CCED36-ECC2-4E4C-8943-8106597BCC79
Barraina
Richardson, 2013
Barraina
Richardson, 2013: 462
.
Type
species.
Barraina anfracta
Richardson, 2013
Remarks.
Barraina
was described on the basis of material from several locations in north-eastern
Queensland
. Further specimens of this genus have now been collected in
New South Wales
, the
Australian Capital Territory
,
South Australia
and
Western Australia
. These represent several new species that are described here.
Revised Diagnosis
.
Barraina
is an Australian genus of small, euophryine spiders that can be distinguished from other genera by the thick, white clypeal fringe in the males, the anti-clockwise corkscrew or spiral form of the embolus and the presence of a small distal tegular lobe. The tibial apophysis is of medium length with a hooked end. The entrances to the insemination canals are distal to the spermathecae. The fertilization canals exit via a distinct extension near the distal edge of the longitudinally-elongated oval spermathecae. The spermathecae have no internal subdivisions.
Key: Females
1. Insemination duct moves directly from the copulation opening to the posterio-medial corner of the spermatheca without coiling or folding back on itself (e.g. Fig. 47)..................................................................... 2
– Insemination duct moves from the copulatory opening to the posterio-median corner of the spermatheca but folds back on itself or forms coils immediately prior to joining the spermatheca (e.g.
Figs 23
,
35
)..................................... 3
2. Copulatory openings further apart than the width across the spermathecae...........................................................................................................................
B. pilata
(
Figs 41–52
)
– Copulatory openings closer to one another than the width across the spermathecae........................
B. anafracta
3. Insemination duct coiled into four or more loops at the posterio-medial corner of the spermatheca.....
B. occidentalis
(
Figs 29–40
)
– Insemination duct moves down the length of the spermatheca before folding back on itself for varying lengths before entering the spermatheca at the posterio-medial corner.............................................................. 4
4. The fold back in the insemination duct more than the length of the spermatheca..................
B. abeddar
(
Figs 2–9
)
– The fold back in the insemination duct more than half the length of the spermatheca...........
B. melanoros
(
Figs 18–28
)
– The fold back in the insemination duct less than half the length of the spermatheca............
B. banyabba
(
Figs 10–17
)
Key: Males (The males of only four species are known)
1. Embolus forms a two-circle structure on the postero-lateral edge of the tegulum (
Fig. 37
)......
B. occidentalis
(
Figs 29–40
)
– Embolus forms a spiral/corkscrew shape on the distal edge of the tegulum........................................ 2
2. A short embolus makes a gentle spiral shape......................................................
B. anafracta
– A long, strongly-built embolus makes a corkscrew shape..................................................... 3
3. A long embolus with a spear-like twisted shape but without a spiral section midway along its length (
Fig. 26
)...............................................................................................
B. melanoros
(
18–28
)
– A long embolus with a spear-like twisted shape including a complex spiral section midway along its length (
Fig. 50
).........................................................................................
B. pilata
(
Figs 41–52
)