Researchers believe this may be an isolated population from an ancestor species that went extinct everywhere else.

In summer, the wings will be a sharp yellow with red highlights. However, in colder seasons, the wings keep a brown shade with comparatively heavier markings. They have a wing size of 1.4 to 2.24 ...

Its wings are sapphire blue on top with a thick black border and small white spots. The underside of its wings are honey yellow and with rusty red with black patches, according to the study.

The tip of the forewing has white spots and there are black and blue dots on the hindwing border. Life span : Red admirals in the over-wintering generation can live up to 10 months; the life span ...

More than eight decades ago, a mesmerizing butterfly with iridescent cobalt wings and stunning spots called the Xerces blue vanished from San Francisco. When it disappeared, the Xerces became ...

Its wings are sapphire blue on top with a thick black border and small white spots. The underside of its wings are honey yellow and with rusty red with black patches, according to the study.

Its wings are sapphire blue on top with a thick black border and small white spots. The underside of its wings are honey yellow and with rusty red with black patches, according to the study.

Its wings are sapphire blue on top with a thick black border and small white spots. The underside of its wings are honey yellow and with rusty red with black patches, according to the study.

Its wings are sapphire blue on top with a thick black border and small white spots. The underside of its wings are honey yellow and with rusty red with black patches, according to the study.

Its wings are sapphire blue on top with a thick black border and small white spots. The underside of its wings are honey yellow and with rusty red with black patches, according to the study.