The genus Pteremis (Diptera: Sphaeroceridae) in the West Palaearctic area, with description of four new species
Roháček Jindřich
Acta Entomologica Musei Nationalis Pragae 64(1): 153-206, 2024
Published online: 18th August 2024
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Abstract: The West Palaearctic species of the genus Pteremis Rondani, 1856 (Diptera:
Sphaeroceridae) are revised, including the type species of the genus and its
synonyms. A total of six species are recognized, four of them new – Pteremis
fenestralis (Fallén, 1820) (type species, wing polymorphic), P. apterina sp.
nov. (apterous, Portugal: Azores), P. canaria (Papp, 1977), P. ferreus sp. nov.
(Spain: Canary Is.: El Hierro I.), P. pulliceps sp. nov. (Portugal: Madeira) and
P. tenebricus sp. nov. (Spain, male only). In addition, Paraspelobia vlasovi
(Duda, 1938) from Turkmenistan is re-examined and transferred to the genus
Pteremis as Pteremis vlasovi (Duda, 1938), comb. nov., and the genus
Paraspelobia Duda, 1938, syn. nov., is synonymized with Pteremis. All these
species are described or redescribed in detail including illustrations of their
male and female terminalia. Lectotypes of Borborus nivalis Haliday, 1833 and
Pteremis subapterus Frey, 1947 (both being brachypterous forms of P.
fenestralis) are designated. The genus Pteremis is newly taxonomically
delimited, redefined and redescribed, with discussion of its relationships.
A new key to West Palaearctic species of Pteremis is constructed and their
relationships, biology and distribution are discussed.
Key words: Diptera, Sphaeroceridae, Limosininae, Pteremis, biology, distribution, key, new combination, new species, new synonym, relationships, taxonomy, Palaearctic Region