Journal of Tropical Ecology

Research Article

How many species of pimplines (Hymenoptera: Ichneumonidae) are there in Costa Rica?

Kevin J. Gastona1 and Ian D. Gaulda1

a1 Department of Entomology, The Natural History Museum, Cromwell Road, London SW7 5BD, UK

Abstract

The species richness of pimpline ichneumonids was examined using catches from a network of Malaise traps operated throughout Costa Rica. More species were caught at some sites than at reasonably well-collected sites in other countries. When corrected for area, the species richness of ‘Pimplinae’ and Pimplini in Costa Rica as a whole is greater than that for virtually any other region recorded to date. The local richness of both groups appears to be a function of their regional richness. Many of the species found in Costa Rica apparently have large geographic ranges.

(Accepted April 27 1993)