A systematic revision of Draculoides (Schizomida: Hubbardiidae) of the Pilbara, Western Australia, Part I: the Western Pilbara
Abrams, Kym M.
Huey, Joel A.
Hillyer, Mia J.
Didham, Raphael K.
Harvey, Mark S.
Zootaxa
2020
2020-10-22
4864
1
1
75
Abrams and Harvey
Abrams and Harvey
2020
[151,740,798,825]
Arachnida
Hubbardiidae
Draculoides
Animalia
Schizomida
60
61
Arthropoda
species
noctigrassator
sp. nov.
( Figs. 1–8, 34–35) Zoobank Code: http://zoobank.org/NomenclaturalActs/ FF4FEC13-E55A-4653-AC55-FE453AE90BAB ParadraculoidesSCH102: Abrams et al. 2019MPE 106532: 8, fig. 2.
Material examined. Holotypemale. AUSTRALIA: Western Australia: 1 ♂, Dragon, ca. 44 kmSSE. of Pannawon- ica, 22°00’49.4”S, 116°33’21.1”E, 430 m, 07 October 2012, J.W. Quartermaine, G.B. Pearson( WAM T142871) (DNA:12S, 18S, 28S, ITS2). Paratypes. AUSTRALIA: Western Australia: 1 ♂, Dragon, ca. 45 kmS. of Pannawonica, 22°00’48.8”S, 116°33’52.4”E, 06 October, scrape, 75 metres, G.B. Pearson, J.W. Quartermaine( WAM T129673) (DNA: ITS2); 1 ♂, Dragon, ca. 44 kmSSE. of Pannawonica, 22°00’45”S, 116°33’31.5”E, 19 July 2012, troglofauna scrape, - 71m, S. R. Bennett, S.G. Pearson ( WAM T142893) (DNA: 12S, 18S, 28S, ITS2). Other material. AUSTRALIA: Western Australia: 1 juvenile, Dragon, ca. 44 kmSSE. of Pannawonica, 22°00’45.0”S, 116°33’31.5”E, 19 July 2012, S. R. Bennett, G.B. Pearson ( WAM T144530); 1 juvenile, Dragon, ca. 44 kmSSE. of Pannawonica, 22°00’49.4”S, 116°33’21.1”E, 430 m, 7 October 2012, J.W. Quartermaine, G.B. Pearson( WAM T144531).
Diagnosis.The shape of the male flagellum of Draculoides noctigrassatormost closely resembles D. affinis, D. anachoretus, D. bythius, D. cochranus, D. eremius, D. gnophicolaand D. kryptus, especially in the presence of a broad base. It differs from D. affinis, D. anachoretus D. bythius, D. cochranus, D. gnophicolaand D. kryptusby the shape of the dorsal margin of the male flagellum, which is quite straight in D. noctigrassatorand more curved and posteriorly tapering in the aforementioned species. It differs from D. eremiusby the position of dm4, which is anterior to dl 3 in D. noctigrassatorand level with dl 3 in D. eremius.Females are unknown. Draculoides noctigrassatorcan be diagnosed from all other Draculoidesspecies that were sequenced at COI, 12S and ITS2 by the 50bp mini-barcodes shown in Figures 3, 5, and 7.
Description (adults). Colour. Yellow-brown; propeltidium and pedipalps somewhat darker. Cephalothorax. Propeltidium with 2 apical setae on anterior process and 2 + 2 + 2 setae; eye spots absent. Mesopeltidia separated. Metapeltidium divided. Anterior sternum with 12-13, setae (including 2 sternapophysial setae); posterior sternum triangular with 6 setae. Chelicera. Fixed finger with 2 large teeth plus 6 smaller teeth between these; membranous area between fixed and movable fingers with 3 large, lanceolate, terminally pilose setae (G1); G2 composed of 6 setae; G3 composed of 5 setae; internal face of chelicera with 4 short whip-like setae (G4); brush at base of fixed finger composed of 7 setae (G5A), each densely pilose in distal half and G5B composed of 9 setae; G6 with one seta; G7 composed of 4 setae. Movable finger serrula composed of 17 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; 0.50 × 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 very small dorsal process ( ♂only). FIGURE 34. Draculoides noctigrassator sp. nov., holotype male (WAM T142871): 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 1 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. Flagellum. Male: Dorsoventrally compressed ( Figs. 34D–F, 35A–C); 1.9 × longer than broad; seta dm1 situated dorso-medially, closer to anterior margin; seta dm4 set back from posterior margin, anterior to dl3; dl1slightly posterior to vl1; dl3 close to posterior margin; vm2 situated slightly anterior to vm1; vm5 situated in line with vl1; left vm3 slightly anterior to right vm3; four pairs of microsetae between vl1 and dl3. Female: unknown. Dimensions (mm). Holotypemale (WAM T142871): Body length 3.46. Propeltidium 1.15/0.62. Chelicera 0.73. Flagellum 0.37/0.19. Pedipalp: trochanter 0.54, femur 0.54, patella 0.46, tibia 0.42, tarsus 0.23, claw 0.13. Variation. Body length (males) 3.06–4.04 (n = 3). Propeltidium setae: single seta following 2 on apical process and one extra pair of setae. Tergite II chaetotaxy: 2 setae instead of 3 as in holotype. Anterior sternum number of setae 12-13, including sternapophysial setae (n=3). Position of vm 5 inrelation to vl1 varies, sometimes closer to vl1, sometimes vm5 is closer to vl2. Other names.WAM SCH102 ( Abrams et al., 2019), Bennelongia sp. B37.
Remarks. Draculoides noctigrassatoris known from several locations within the ‘Dragon’ deposit within the Bungaroo South (Buckland project) area of Western Australia( Fig. 1E).
Etymology.The specific epithet is a verb referring to the occurrence of this species in permanently dark habitats (Latin, noctis, night; grassatus, go about, loiter).
3013449377
2012-10-07
WAM
J. W. Quartermaine & G. B. Pearson
Australia
430
-22.013721
Dragon
1
116.55586
60
61
T142871, ITS2
1
1
Western Australia
holotype
3013449446
WAM
Australia
-22.013556
Pannawonica
1
116.56456
Dragon
60
61
T129673, ITS2
1
1
Western Australia
paratype
3013449392
2012-07-19
R
Australia
71
-22.0125
15
116.558754
60
61
1
1
Western Australia
paratype
3013449371
[206,987,1219,1245]
WAM
Bennett, S. G
Australia
60
61
T142893, ITS2
1
Western Australia
paratype
3013449379
2012-07-19
R
Australia
-22.0125
Pannawonica
1
116.558754
Dragon
60
61
1
1
Western Australia
3013449349
[733,1200,1290,1317]
WAM
Bennett, G. B
Australia
60
61
T144530
1
Western Australia
3013449401
2012-10-07
WAM
J. W. Quartermaine & G. B. Pearson
Australia
430
-22.013721
Pannawonica
1
116.55586
Dragon
60
61
T144531
1
1
Western Australia