| 1. Pedipalpal femur 4.4–5.5 times longer than broad …A. opticus (Okayama, Okayama Prefecture, Japan) |
| - Pedipalpal femur 5.5–6.1 times longer than broad …A. troglophilus stat. nov. (Kugo cave, Gifu Prefecture, Japan) |
| 1. Pedipalpal femur 4.4–5.5 times longer than broad …A. opticus (Okayama, Okayama Prefecture, Japan) |
| - Pedipalpal femur 5.5–6.1 times longer than broad …A. troglophilus stat. nov. (Kugo cave, Gifu Prefecture, Japan) |