Abstract:
This revision is part of a continuing series of taxonomic work aimed at the description of
new taxa and the redescription of known taxa of the Tachinidae of Area de Conservación
Guanacaste in northwestern Costa Rica. Here we describe 33 new species in the genus
Belvosia Robineau-Desvoidy, 1830 (Diptera: Tachinidae). All species described here were
reared from this ongoing inventory of wild-caught caterpillars spanning a variety of families
(Lepidoptera: Erebidae, Eupterotidae, Noctuidae, Notodontidae, Saturniidae, and
Sphingidae). We provide a morphological description of each species with limited information on life history, molecular data, and photographic documentation. In addition to
the new species, the authors provide a redescription of the genus Belvosia, as well as
provide a key to the identification of the species present in the Meso- and North-American
fauna.