Hypochthonellidae

Definition

A monotypic family of planthoppers (Hemiptera: Fulgoromorpha) containing only the genus Hypochthonella, itself monotypic with the single species Hypochthonella caeca. This family is notable for its extreme rarity in collections and limited geographic distribution, known only from Zimbabwe. The family's placement within Fulgoromorpha reflects its shared derived characteristics with other planthopper lineages despite its highly reduced diversity.

Etymology

Example

The family Hypochthonellidae, represented solely by the cavernicolous or soil-dwelling species Hypochthonella caeca, exemplifies the pattern of relictual, monotypic families found among African fulgoromorphs.

Related Terms

• Fulgoromorpha
• planthopper
• Monotypic
• Hemiptera
• Hypochthonella

Usage Notes

Always refers to the family rank; the family's monotypic status means it is discussed primarily in systematic and biogeographic contexts rather than ecological ones. The spelling with double 'l' (Hypochthonellidae, not Hypochthonellidae) follows the original description by China & Fennah, 1952.