Choristidae

Definition

A small family of scorpionflies (order Mecoptera) endemic to Australia, characterized by larvae that inhabit and develop within moss mats rather than soil or leaf litter. Adults are typically found in moist, shaded habitats near their larval substrate.

Etymology

Example

Choristidae larvae, unlike the soil-dwelling larvae of most other scorpionfly families, are specialized for life within interstitial spaces of bryophyte mats, a habitat shift that has likely contributed to their restricted Australian distribution.

Related Terms

• Mecoptera
• scorpionfly
• Panorpidae
• Bittacidae
• bryophyte
• Endemic

Usage Notes

Choristidae is one of several families historically grouped as 'scorpionflies' for the male's genital bulb resembling a scorpion's stinger, though this trait is reduced or absent in Choristidae. The family's moss-dwelling larvae contrast sharply with the predatory, soil-inhabiting larvae of Panorpidae and the hanging, predatory larvae of Bittacidae. Use of the older family name 'Choristida' (still occasionally encountered) should be avoided as it is a nomen oblitum.