Japygoidea

Definition

The sole superfamily in the suborder Dicellurata (order Diplura), comprising two-pronged bristletails with forceps-like anal cerci and generally larger body size than the paraphyletic or sister group Campodeoidea. Japygoidea includes at least four families (notably Japygidae, the forcepstails) and more than 170 described species, characterized by well-developed, pincer-shaped cerci used in prey capture and intraspecific interactions.

Etymology

From Japyx (type genus of Japygidae, derived from Greek iapyx, a west or northwest wind) + -oidea (superfamily suffix)

Example

The japygid Heterojapyx gallardi, a representative of Japygoidea, uses its enlarged cerci to seize small soil arthropods such as collembolans and enchytraeid worms.

Synonyms

• Dicellurata (suborder, not equivalent)

Related Terms

• Diplura
• Dicellurata
• Campodeoidea
• Japygidae
• Cerci
• bristletail
• Entognatha

Usage Notes

Japygoidea is contrasted with Campodeoidea, the other major dipluran group (suborder or grade), which has thread-like rather than forceps-like cerci. The superfamily rank is stable, though phylogenetic relationships within Diplura remain actively revised. Some authors historically treated Japygoidea as equivalent to the suborder Dicellurata, but current usage restricts Dicellurata to suborder rank with Japygoidea as its only included superfamily.