Tachinid fly larvae are parasitoids and their hosts are almost exclusively insects although for many tachinid species the hosts are unknown. They may glue their eggs to their host or lay their eggs on foliage where the host larvae will eat them. Some have ovipositors with which they inject their eggs directly into the unsuspecting host’s body. The true diversity of the family Tachinidae is likely many thousands of species higher than the 10,000 currently described, making this family perhaps the most speciose family of Diptera and without question the most successful with a parasitic way of life.
Today's new species was found in Finnish Lapland. It was named after Christer Bergström (Uppsala, Sweden) as an acknowledgment of his life-long work on the Nordic Tachinidae.
For the experts: A new tachinid species, Linnaemya bergstroemi n. sp., is described from the Finnish Lapland. The new species closely resembles the Nearctic species Linnaemya anthracina Thompson, but can be readily distinguished from it by the characters described in this paper. The taxonomic placement of the two species is discussed in the light of morphological and CoI sequence similarities with Linnaemya Robineau-Desvoidy species in the subgenera Ophina Robineau-Desvoidy and Bonellimyia Townsend. Known aspects of the new species’ biology and distribution are reviewed.