How many species of Leafhoppers are there?

There are over 20,000 known species of leafhoppers (family CicaDELLidae) worldwide. They are a diverse group of insects found in various habitats, including forests, grasslands, and agricultural areas. Leafhoppers play significant roles in ecosystems, both as herbivores and as vectors for plant pathogens. Ongoing research continues to discover and describe new species, suggesting that the actual number may be even higher.