A group of beetles characterized by having different numbers of segments on their front and hind legs.
From Greek 'hetero-' (different) and 'meros' (part or segment). The term originated in entomology to classify beetles with asymmetrical leg segment counts.
These beetles break the symmetry you'd normally expect in insects—some have 5 toes on front legs but only 4 on back legs, and scientists used this quirky feature to group thousands of beetle species together!
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