Acanaloniidae

Definition

A family of planthoppers (Hemiptera: Fulgoroidea) characterized by a somewhat flattened, often greenish body and a distinctive head shape with the frontoclypeus extended forward. The group is sometimes treated as a subfamily (Acanaloniinae) within Issidae, reflecting ongoing taxonomic debate about rank boundaries in fulgoroid planthoppers. Members are primarily tropical and subtropical, with many species found in the Neotropics.

Etymology

From the type genus Acanalonia (Greek akanalos 'without a canal' or 'tubeless', possibly referring to structural features of the head or genitalia) + Latin -idae family suffix.

Example

Acanalonia conica, a common North American species in Acanaloniidae, can be recognized by its conical, keeled pronotum and green coloration, often found on woody shrubs where it feeds on phloem sap.

Synonyms

• Acanaloniinae (when treated as subfamily of Issidae)

Related Terms

• planthopper
• Fulgoroidea
• Issidae
• Hemiptera
• Auchenorrhyncha
• phloem feeder

Usage Notes

Taxonomic rank remains unsettled: specialists variously recognize Acanaloniidae as a distinct family or subsume it within Issidae as Acanaloniinae. The family-level treatment is more common in recent phylogenetic studies but not universal. When encountered in older literature, check whether the author follows the broad Issidae concept.