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Sexual size dimorphism of C. columbae. (A) Females are typically 13% larger than males. (B) Sexually dimorphic heads showing male antenna with larger scape (first segment) and inward pointing spur on the third segment. (C) Colorized SEM of C. columbae copulating on a pigeon feather: male (red) grabbing the female (gold) with his antennae (black arrow; Inset), while curling the tip of his abdomen dorsally to contact the tip of her abdomen (white arrow).
