Palearctic-affinities

Guides

• Actia

  Actia is a genus of tachinid flies (Diptera: Tachinidae) in the tribe Siphonini. These flies are parasitoids of lepidopteran larvae, with species recorded from hosts including spruce budworm, black-headed budworm, and various noctuid moths. The genus contains at least eight Nearctic species, including four described relatively recently (A. dasymyia, A. dimorpha, A. radialis, A. sternalis). Species are grouped into three species groups based on morphological and phylogenetic affinities: autumnalis-group, lamia-group, and crassicornis-group.

  parasitoidtachinidbiological-controlforest-entomologyLepidoptera-parasitoidspruce-budwormSiphoniniinternal-parasitoidlarval-parasitoidNearcticPalearctic-affinitiescompetitive-displacementmultiparasitism