| 1 |
Male |
2 |
| - |
Female |
9 |
| 2 |
Bulb oval or roughly triangle shaped, embolus base thinner (Figs
7E, F
,
12A, B
)
|
3 |
| - |
Bulb pear-shaped in lateral view, with ventral side strongly protruding proximally, embolus base thicker (e.g., Fig.
1A-C
)
|
4 |
| 3 |
Bulb oval shaped (Fig.
12A, B
); chelicerae with distal group of long converging setae (Fig.
10F
); tibia I with a group of ventrobasal spines (Fig.
10D
)
|
O. truncatula
Tong & Li, 2011
|
| - |
Bulb triangle shaped (Fig.
7E, F
); chelicerae with distal single long setae (Fig.
2D, F
); tibia I without the aforementioned character
|
O. colubrina
Liu, Henrard & Xu, 2019
|
| 4 |
Palpal tibia distinctly narrower than bulb (Fig.
7A, B
)
|
O. menglun
sp. nov.
|
| - |
Palpal tibia strongly enlarged, at least as wide as bulb (e.g., Fig.
1A-C
)
|
5 |
| 5 |
Sperm duct with 2 loops in prolateral view (Figs
5A
,
14A
)
|
6 |
| - |
Sperm duct with 3 loops in prolateral view (Figs
1A
,
9A
,
16A
)
|
7 |
| 6 |
Endites with deep excavations (Figs
4G
,
5D
)
|
O. concava
sp. nov.
|
| - |
Endites without deep excavations (Figs
13G
,
14D
)
|
O. wengnan
sp. nov.
|
| 7 |
Embolus with conspicuous dorsal flattened extension and acute tip (Fig.
16A-C
)
|
O. xui
sp. nov.
|
| - |
Embolus gradually tapered (Figs
1A-D
,
9A-C
)
|
8 |
| 8 |
Endites with large triangular outgrowth (Fig.
9D
)
|
O. subclavulata
sp. nov.
|
| - |
Endites lacking triangular outgrowth (Fig.
1E
)
|
O. clavulata
Tong & Li, 2011
|
| 9 |
Genitalia with posterior plate (PP); anterior uterine sclerite (AUS) with lateral protrusion (Pr) well developed (Fig.
18D
)
|
10 |
| - |
Genitalia with two dorsolateral extensions (Ex) surrounding anterior uterine sclerite (AUS); AUS with lateral protrusion (Pr) reduced (Figs
3I
,
12F
)
|
11 |
| 10 |
Epigaster with two small, dark sclerotized pockets (Fig.
18C
)
|
O. xui
sp. nov.
|
| - |
Epigaster without two small, dark sclerotized pockets (
Tong and Li 2011
: fig. 4B)
|
O. clavulata
Tong & Li, 2011
|
| 11 |
Epigaster with distinctly medial marks in ventral view (Fig.
11G
); anterior uterine sclerite (AUS) short, length/width ratio about 1.25 (Fig.
12F
)
|
O. truncatula
Tong & Li, 2011
|
| - |
Epigaster without distinctly medial marks in ventral view (Fig.
3G
); anterior uterine sclerite (AUS) long, length/width ratio about 2.0 (Fig.
3H, I
)
|
O. colubrina
Liu, Henrard & Xu, 2019
|