1. Sterna 8+9 about twice as wide (Fig. 2A); mediuncus with lateral lobe much shorter than ventral median lobe (Figs 2C, 2D)........................................................................... A. tropica (Yang & Wang, 1994)
- Sterna 8+9 more than twice as wide; mediuncus with lateral lobe slighter shorter than ventral median lobe............... 2
2. Pretarsal claw with basal dilation more than half length of claw hook and lateral outer margin strongly rounded (Fig. 3E); pronotum with median spots projected (Fig. 3A); sterna 8+9 about 2.5 times as wide (Fig. 4B); entoprocessus not curved inward apically (Fig. 4C)..................................................................... A. lihongyui sp. nov.
- Pretarsal claw with basal dilation about half length of claw hook and lateral outer margin almost straight (Fig. 5D); pronotum with median spots not projected; sterna 8+9 about 3 times as wide (Fig, 6B); entoprocessus curved inward apically (Fig. 6E)...................................................................................... A. angusta sp. nov.