grant burleigh's picture

Facial features of a Speckled Wood butterfly

Observed: 2nd June 2012 By: grant burleighgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebrates
545b
545a
5492
Description:

The eyes here are at the front of the head rather than at the side and they appear to have a central lens (?) suggestive of stereoscopic vision. Among butterflies, is this a structure that is specific to the Speckled Wood and linked to aerial aggression between males in this species? Also, I don’t see a tubular proboscis in these images. Does the Speckled Wood have a more sponge-like structure, geared to sucking up honeydew?

Identifications
Species interactions

No interactions present.

Species with which Speckled Wood (Pararge aegeria) interacts

Comments

moremoth's picture

Lens?

That lens effect is an optical illusion. They are compound eyes, and you can see deeper into the structure of them from the direction you are looking. The proboscis is curled up in a tight spiral at the front of the head.

Bill Welch