Alypiodes flavilinguis -
bimaculata typically has forewing with a longer tapered white basal spot, shorter and more oval in
flavilinguis, and prominent white markings on the apex of the tegula, lacking in
flavilinguis. Larvae have white middorsal and subdorsal stripes, lacking in
flavilinguis, and more regular black banding. The subventral area above the prolegs is mostly white, not jet black as in
flavilinguis.