Key to species of Archischoenobius in China

1. Forewing with posterior portion of postmedial line acutely bent to tornus. In male genitalia, uncus with a sharp apical thorn ............ .......................................................................................................................................................................................... A. minumus Forewing with posterior portion of postmedial line bluntly bent to tornus. In male genitalia, uncus without sharp apical thorn ........2

2. Forewing with a narrow and strip-shaped white area between postmedial line and postmedial ground. In male genitalia, sacculus and cornutus straight .......................................................................................................................................................... A. pallidalis Forewing with a broad and wedge-shaped white area between postmedial line and postmedial ground. In male genitalia, sacculus incurved and cornutus curved .............................................................................................................................................................. 3

3. Hindwing suffused with black scales at posterior portion. In male genitalia, sacculus slightly incurved, juxta not constrict on both sides .................................................................................................................................................................................. A. nigrolepis Hindwing pale fuscous at posterior portion. In male genitalia, sacculus deeply incurved, juxta constrict on both sides ....................... .................................................................................................................................................................................... A. nanlingensis