Yours does look like a deformity caused by a problem with emergence. I guess it was stuck too long in the pupal case. An aberration is a variation but usually referring to genetic causes. Here is my example http://www.projectnoah.org/spottings/10309710
Jolly I collected this specimen because of this condition only (collected on 30/iii/2013), so there is no chance of poor storage.
Yes, KarenL, antenna was missing when I collect the specimen.
Looks for me like a simple malformation. Let's remember that this happens all the time in animals and plants. Wings are not essentially for "just living" (like the moving caterpillar after being parasitized by wasps), so this might just have a "normal" butterfly life. If more important organs are involved we probably would not see such an animal because it dies at an earlier stage.
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