Key to Athalia species groups

1 Clypeus elongate medially and rounded in front.................................... Athalia incomta species group

- Clypeus short medially and more or less truncate or conspicuously excised in front................................. 2

2 Clypeus short medially and truncate to subtruncate in front......................... Athalia himantopus species group

- Clypeus very short medially and conspicuously excised in front..................... Athalia vollenhoveni species group