Achilidae

Definition

A family of planthoppers (Hemiptera: Fulgoromorpha) comprising at least 520 described species. Achilids are distinguished by their broad, often flattened bodies, reduced or modified wings in some lineages, and association with fungal-feeding habits, with many species found in decaying wood or leaf litter where they feed on mycelia. They represent a relatively understudied group within the diverse planthopper radiation.

Etymology

From genus Achilus (type genus), with family suffix -idae.

Example

The achilid Catonia nava is frequently encountered in rotting logs in eastern North American forests, where adults and nymphs feed on fungal hyphae.

Synonyms

• achilids (informal)

Related Terms

• Fulgoromorpha
• planthopper
• Hemiptera
• Fungivory
• Cixiidae
• Delphacidae
• Auchenorrhyncha

Usage Notes

Sometimes confused with the related family Cixiidae; achilids typically have broader bodies and more reduced wing venation. The common name 'achilid' is informal and used primarily among specialists. Many species remain undescribed, particularly in tropical regions.