Lalacidae

Definition

An extinct family of planthoppers (Hemiptera: Fulgoromorpha) erected by Hamilton in 1990, comprising three subfamilies, four tribes, and nine genera. The family represents a distinct lineage within the diverse radiation of fulgoroid planthoppers known from the fossil record.

Etymology

Example

Fossil specimens of Lalacidae, such as those attributed to the genus Lalax, preserve diagnostic wing venation patterns that distinguish this extinct family from extant planthopper families like Flatidae or Fulgoridae.

Related Terms

• Fulgoromorpha
• planthopper
• Flatidae
• Fulgoridae
• Hamilton 1990

Usage Notes

As an extinct family, Lalacidae is known only from fossil material; no extant species are assigned to this taxon. The family-level classification follows Hamilton's 1990 revision of fulgoroid phylogeny. When citing, include the author and year (Lalacidae Hamilton, 1990) to distinguish from potential homonyms or subsequent taxonomic revisions.