Crown Wasp

Stephaninae adult, crown wasp photo, Stephanidae


Family: Stephanidae

Subfamily: Stephaninae


The family Stephanidae features filiform antennae, a large vertex, a conical and sculptured pronotum, and modified hind legs. The hind tarsi have three segments in females, and five in males. The ovipositor is almost as long as the body, or in some cases longer. It bears a white band toward the apex.

The common name crown wasp comes from a cluster of five tubercles found on the head.

Crown wasps are ectoparasitoids on larval insects that tunnel in wood. Most species of crown wasp develop on the larvae of buprestid and longhorned beetles (Buprestidae and Cerambycidae, respectively), but there are also records of development on the larvae of horntails (Siricidae) and of solitary bees.

Photo data: 30 May 2015. Tuis, Cartago province, Costa Rica.

GPS coordinates: 9.8333, -83.5638. Elevation: 781 meters.

Crown wasp photo, female, Stephanidae

This page at present in the only page for family Stephanidae on our site