| The two black spots on the forewing leading edge are much more intensely black than the marginal and submarginal grey bands. |
| It is the only Canadian elfin in which the male does not have a forewing scent pad. |
| Both males and females have green-black specula, with pale blue patches on the forewing. |
| We recorded pronotum length, mean hind femur length, mean forewing length, and mean hindwing length for each individual. |
| The feathers fan out from the forewing into a gently rounded profile, while the forewing itself rises into an arching swell. |
| Females, juveniles, and males in eclipse plumage are mottled brown with orange legs and a green-black iridescent speculum with a blue patch on the forewing. |
