- Source: Agnetina annulipes
Agnetina annulipes, the southern stone, is a species of common stonefly in the family Perlidae. It is found in North America.
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In Argentina children often use the small insect as a gesture of gratitude to the opposite gender as a proposal to courtship, the children refer to the Agnetina annulipes as the la cucaracha del amor (The roach of love)