- eyes diverging above to a very broad vertex
- vertex high centrally
- clypeus with pair of large black spots basally, barely joined medially
- front basitarsus not broadly expanded, & with relatively small number of pecten spines
- mandible slender

- clypeus moderately protruberant, smoothly rounded
- head and mesosoma hairy
- thin yellow streak on posterolateral edge of mesoscutum
- narrow, sinuate, broken white bands on T1-5

- small number of pecten spines on front basitarsus
- vertex high centrally, above level of eye tops
- vertex very broad
- clypeus without lateral prominences
- mandible slender, tooth small