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Interesting Facts:
Butterflies in the genus Caligo are commonly called Owl butterflies, after their huge eyespots, which resemble owls’ eyes. There are about 20 species in the genus, found in the rainforests and secondary forests of Mexico, Central and South America.
Underwing and upperwing patternThe actual function of the eyespots remains controversial (Stevens 2005). In some butterflies, particularly Satyrinae (such as the Gatekeeper Butterfly and the Grayling), it has been shown that ocelli serve as a decoy, diverting bird attack away from the vulnerable body, and towards the outer part of the hindwings or the forewing tip. Owl butterflies have been observed with large chunks missing from their hindwings[citation needed]. On the other hand, decoy ocelli are almost always small and located near the margin of the wing, where the damage caused by a bird’s beak would interfere little with the butterfly flying and going about its life. The position and size of the owl butterflies’ ocelli makes them a decidedly suboptimal decoy, as they are far too close to the abdomen in resting position to ensure no substantial damage is inflicted by a bird snapping at them.
Caligo eurilochusThe underwing pattern is highly cryptic. Caligos typically rest on tree trunks and large branches, and at least to human observers, when seen from a distance, the eyespot and the surrounding dark area do not compromise their superb camouflage. As many birds are able to see in the ultraviolet, more research is needed to determine how the eyespot pattern is perceived by the actual predators. In any case, at fairly close range the most visible thing about a resting owl butterfly is certainly a dark patch containing a single “false eye”.
Owl butterflies are very large, and fly only a few metres at a time, so avian predators have little difficulty in following them to their settling place. However, the butterflies preferentially fly around dusk, when few avian predators are around (Freitas et al., 1995). Indeed, their main predators are apparently[citation needed] small lizards such as Anolis. It has been suggested[citation needed] that the hindwing underside pattern actually resembles the head of a large Hyla tree frog, which prey on Anolis. This theory remains to be tested. It is known that many small animals hesitate to go near patterns resembling eyes with a light-colored iris and a large pupil, which matches the appearance of the eyes of many predators that hunt by sight[citation needed]. Thus, it is conceivable that the eye pattern is a generalized form of automimicry that would buy the butterfly time to escape from an approaching predator.

Nikon D60~18/55
San Blas Mexico 09’

Comments

  • judygal
    judygalover 5 years ago

    This is a beautiful piece of work….Lovely collage

  • Marvin Collins
    Marvin Collinsover 5 years ago

    Wow!! He is beautiful, great work LJ!!

  • artisandelimage
    artisandelimageover 5 years ago

    beautiful collage !
    my best, francis.

  • artisandelimage
    artisandelimageover 5 years ago

    and great informative comment !!!
    my best, francis.

  • deegarra
    deegarraover 5 years ago

    beautiful colllage of butterflys

  • CanDuCreations
    CanDuCreationsover 5 years ago

    Wow LJ this is an excellent, very beautiful composition of butterfly images.

  • Lynn Bawden
    Lynn Bawdenover 5 years ago

    What a great capture, LJ…beautiful…Lynn

  • Amber Elizabeth Fromm Donais
    Amber Elizabet...over 5 years ago

    beautiful work dear lj hugsssssssssssssssssssssssssssss
    lil
    me

  • Dave Moilanen
    Dave Moilanenover 5 years ago

    Wow!! This is fantastic Lj!!!

  • Deborah  Benoit
    Deborah Benoitover 5 years ago

    Beautiful collage!!

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