A systematic revision of Draculoides (Schizomida: Hubbardiidae) of the Pilbara, Western Australia, Part I: the Western Pilbara
Author
Abrams, Kym M.
Author
Huey, Joel A.
0000-0001-7108-0552
uey@museum.wa.gov.au
Author
Hillyer, Mia J.
mia.hillyer@curtin.edu.au
Author
Didham, Raphael K.
0000-0001-6685-7005
raphael.didham@uwa.edu.au
Author
Harvey, Mark S.
0000-0003-1482-0109
arvey@museum.wa.gov.au
text
Zootaxa
2020
2020-10-22
4864
1
1
75
journal article
9009
10.11646/zootaxa.4864.1.1
710afcac-f353-49bf-a397-3c71ba1508be
1175-5326
4416849
A5F51A7F-83DA-4C77-A85C-0FCF8A400CF2
Draculoides gnophicola
(
Harvey, Berry, Edward and Humphreys, 2008
)
(
Figs. 1–8
,
22–23
)
http://zoobank.org/NomenclaturalActs/
C8597E44-F7BC-43AA-9DA1-F2D7B9B423DF
Paradraculoides gnophicola
Harvey, Berry, Edward and Humphreys 2008:188–190
, figs. 43–46.
Draculoides gnophicola
(Harvey, Berry, Edward and Humphreys)
:
Abrams
et al
. 2019
MPE 106532: 8, fig. 2.
Material examined.
Holotype
female.
AUSTRALIA
:
Western Australia
:
Mesa G
(Borehole 0159A),
22.4 km
SW. of
Pannawonica
,
21°44’20”S
,
116°08’06”E
,
March–April
2008,
M. Greenham
,
D. Kamien
and
L. Mould
(
WAM
T
65763).
Paratypes
.
AUSTRALIA
:
Western Australia
:
1 ♀
,
Mesa G
(Borehole 0014A),
22.4 km
SW. of
Pannawonica
,
21°43’57”S
,
116°07’01”E
,
21 December 2004
,
G. Humphreys
,
M. Greenham
(
WAM
T
63312)
;
1 ♀
,
Mesa G
(Bore- hole 0057A),
21 December 2004
,
G. Humphreys
,
M. Greenham
(
WAM
T
63316)
.
Other material.
AUSTRALIA
:
Western Australia
:
1 ♂
,
Mesa G
,
23.9 km
SW. of
Pannawonica
,
21°43’57”S
,
116°07’00”E
,
21 October 2009
,
troglofauna trap
,
J. Alexander
,
E. Harris
(Biota Environmental Sciences, MEG- DC014AP1
T3-4
) (
WAM
T
99563) (DNA:
COI
); see
Abrams
et al
. (2019)
.
Diagnosis.
The shape of the male flagellum of
Draculoides gnophicola
most closely resembles
D. affinis
,
D. anachoretus
,
D. bythius
,
D. cochranus
,
D. eremius
and
D. kryptus
, especially in the presence of a broad base. It differs from
D. affinis
by the position of dm4 level with dl3 (dm4 is slightly anterior to dl
3 in
D. affinis
) and vm1 which is slightly posterior to vm2 (vm1 more posterior to vm
2 in
D. affinis
)
, from
D. anachoretus
and
D. cochranus
by the posterior position of dm4 (anterior in
D. anachoretus
and
D. cochranus
)
, level with dl3; from
D. bythius
in the close proximity of dl1 and vl1 (far apart in
D. bythius
); from
D. kryptus
by the sub-distal position of vl2 (on distal margin in
D. kryptus
), and from
D. eremius
by the raised antero-dorsal region of the flagellum, which is flat in
D. eremius
. Females of this species differ from all others in the position of flagellar seta dm4, which is much closer to dl1 than any other
Draculoides
.
Draculoides gnophicola
can be diagnosed from all other
Draculoides
species that were sequenced at COI and 12S by the 50bp mini-barcodes shown in
Figures 3
and
5
.
Draculoides gnophicola
can be diagnosed from all other
Draculoides
species that were sequenced at ITS2 (
Fig. 7
) except for
D. anachoretus
,
D. bythius
,
D. eremius
,
D. kryptus
,
D. mckechnieorum
,
D. warramboo
,
D. immortalis
,
D. belalugosii
,
D. christopherleei
,
D. piscivultus
and
D. akashae
,
which are not distinguishable using the ITS2 mini-barcode.
Description.
Adult male (WAM T99563)
Colour
. Yellow-brown; propeltidium and pedipalps somewhat darker.
Cephalothorax
. Propeltidium with 2+1 apical setae in a triangular formation on anterior process and 2 + 2 + 1 + 2 setae; eye spots absent. Mesopeltidia separated. Metapeltidium divided. Anterior sternum with 14 setae (including 2 sternapophysial setae); posterior sternum triangular with 6 setae.
FIGURE 22.
Draculoides gnophicola
male (WAM T99563): A. Body, dorsal; B. Body, ventral; C. Body, lateral; D. Flagellum, dorsal; E. Flagellum, ventral; F. Flagellum, lateral. The scale bar shown in image A is 2 mm and also applies to B and C and the scale bar shown in image D is 200 µm and also applies to E and F.
Chelicera
. Fixed finger with 2 large teeth plus 5 smaller teeth between these including 1 tiny lateral tooth on proximal tooth; membranous area between fixed and movable fingers with 3 large, lanceolate, terminally pilose setae (G1);. G2 composed of 7 setae; G3 composed of 3 setae; internal face of chelicera with 3 short whip-like setae (G4); brush at base of fixed finger composed of 8 setae (G5A), each densely pilose in distal half and G5B composed of 11 setae; G6 and G7 composed of one seta. Movable finger serrula composed of ~18 long lamellae, blunt guard tooth present subdistally; 1 large accessory tooth present.
Pedipalp
. Without apophyses; trochanter with sharply produced ventro-distal extension, ventral margin with ca. 8 stout setae, without mesal spur; tarsus and tibia without spines; tarsal spur present; claw 0.33 × length of tarsus.
Legs.
Tarsus I with 6 segments; baso-dorsal margin of femur IV produced at about a 90° angle.
Abdomen
. Chaetotaxy of tergite I: 2 macrosetae + 4 microsetae (microsetae diagonal), tergite II: 3 macrosetae + 6 microsetae (microsetae in column), tergites III–IX: 2: 2: 2: 2: 2: 2; segment XII with small dorsal process (
♂
only).
Flagellum
. Male: Dorsoventrally compressed (
Figs. 22
D–F, 23A–C); 1.9 × longer than broad; seta dm1 situated dorso-medially, closer to anterior margin; seta dm4 close to posterior margin, level with dl3; dl1posterior to vl1; dl3 on posterior margin; vm2 situated slightly anterior to vm1; vm5 situated midway between vl2 and vm3; left vm3 slightly posterior to right vm3; one pair of microsetae dorsally, slightly posterior to dm1, six pairs of microsetae between vl1 and dl3.
Dimensions (mm)
. Male (WAM T99563): Body length 3.17. Propeltidium 1.15/0.62. Chelicera 0.73. Flagellum 0.37/0.19. Pedipalp: trochanter 0.50, femur 0.48, patella 0.60, tibia 0.58, tarsus 0.29, claw 0.10.
Remarks.
Harvey
et al
. (2008)
named this species from several females and juveniles collected from Mesa G (
Fig. 1B
). Additional specimens, including a male that is described here, have since been collected from the same mesa.