These fungi drug cicadas with psilocybin or amphetamine to make them mate nonstop

The insects keep at it even if chunks of their abdomens fall off

Massospora cicadina

FREAKY FUNGUS  The cicada-infecting Massospora cicadina fungus makes an amphetamine called cathinone, which spurs cicadas to mate and spread fungal spores. Other species of the fungus produce psilocybin, more often found in hallucinogenic mushrooms.

M. Kasson

SAN FRANCISCO — A cicada-infecting fungus produces drugs that make the insects literally mate their butts off.