Family: Stephanidae Subfamily: Stephaninae
Photo location: Tuis, Cartago province, Costa Rica.
Photo date: 30 May 2015.
GPS coordinates: 9.833310, -83.563837
Elevation: 781 meters
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.
The wasp pictured here has not yet been identified to genus.
Note that this is the only page in family Stephanidae on the American Insects site
American Insects site