Entomologisk Tidskrift

Taxonomin i artkomplexet Atheta pachycera (Coleoptera, Staphylinidae, Aleocharinae, Athetini)

Jyrki Muona — 2023-09-08

Three staphylinid species listed in the latest Palaearctic Coleoptera Catalogue as subjective junior synonyms are resurrected as separate taxa: Atheta sexdentata Jansson, 1929 (Sweden, Finland), Atheta woerndlei Bernhauer, 1917 (Austria) and Atheta minarzi Bernhauer, 1936 (Austria). A lectotype is designated for Atheta sexdentata A. Jansson, 1929. All three species are closely related to Atheta pachycera (Eppelsheim), 1893 [Liogluta] (Russia, ES). The species are redescribed and illustrated and their placement in published keys considered. The phylogenetic position of this species group is discussed. It is shown to include several other well- known taxa: Atheta euryptera (Stephens), Atheta ebenina (Mulsant & Rey), Atheta contristata (Kraatz) and Atheta pfaundleri G. Benick. The sister-group of this clade is shown to be the Atheta s. str. group.

Evertebratinventering på Omberg i Östergötland 2021

Kjell Antonsson — 2023-09-08

This paper presents a large survey of invertebrates on the mountain Omberg in the county of Östergötland in Southern Sweden in 2021. The studied area covers about 22 km² and has a large variety of habitats, e.g. oldgrowth forests, steep cliffs, fens and meadows on calcareous soils. Several collecting methods were used, in particular/mainly window-traps, sweep-netting, and pan traps. In total about 2 300 species of invertebrates were found and more than 60 of the recorded species are listed on the Swedish redlist. There were also more than 100 species new to the county of Östergötland and three Diptera species new to Sweden (Homoneura thalhammeri Papp, 1978; Odinia meijerei Collin, 1952; Geomyza annae Martinek, 1978). Among the findings are some really interesting species, which were recovery findings for more than 100 years in the county of Östergötland, for example the bark beetle Colydium elongatum (Fabricius, 1787).

Hoplitis adunca (Panzer, 1798) – ett nytt gnagbi funnet i Sverige (Hymenoptera, Apoidea, Megachilidae)

Fredrik Östrand — 2023-09-08

The mason bee Hoplitis adunca (Panzer, 1798) was recorded new to Sweden in June 2022 in Landskrona, Scania, southernmost Sweden. At least eight individuals of H. adunca were recorded close to an old railway station near Echium vulgare, the plant it is associated with. The ecology of the species is briefly presented along with some characteristics separating H. adunca from its sibling species H. anthocopoides (Schenck, 1853).

Tre för Skandinavien nya parasitflugor påträffade i Sverige (Diptera: Tachinidae)

Fredrik Östrand — 2023-09-08

Three species of tachinid flies (Diptera: Tachinidae) are reported new for Sweden and neither of them have been recorded in Scandinavia before. All three species were found in Scania, the southernmost part of the country. Gymnosoma nitens Meigen, 1824 (Phasiinae) was recorded in 2022 in two places. First at an old railway station in Landskrona in June-July and later in a garden outside Lund in September. Paratrixa polonica Brauer & Bergenstamm, 1891 (Exoristinae) was recorded in August 2019 outside Lund in a pine plantation. In the same pine plantation Campylocheta fuscinervis (Stein, 1924) (Exoristinae) was recorded in June 2014. The ecology of the three species is briefly presented together with a short summary of literature and web sites suitable for studying tachinid flies occurring in Sweden.

Hedspolvivel, Coniocleonus nebulosus (Linnaeus, 1758), återfunnen i Sverige (Coleoptera, Curculionidae Latreille, 1802)

Alexander Berg — 2023-09-08

Coniocleonus nebulosus (Linnaeus, 1758) is arguably one of the rarest weevils in Sweden. In older collections the species was frequently confused with Coniocleonus turbatus (Fåhraeus, 1842), which is also rare but somewhat more widespread. After correcting for misidentifications, C. nebulosus (Linnaeus, 1758) proved to be known only from a small number of localities. All records were old or very old, the latest being from 1940. In the late 1800s and early 1900s the species was repeatedly recorded from several localities along the west coast, suggesting that it has declined since then. A probable cause of the decline is the overgrowing of coastal heaths, that were previously traditionally managed by burning and extensive grazing. On all Swedish red lists since 2005, C. nebulosus has been classified as Regionally Extinct (RE). In 2022, however, a specimen was found on a sandy inland heath managed by intermittent burning, near Skillingaryd in the province of Småland. The site is located in the same parish (Tofteryd) as the 1940 record, and it is not unlikely that the two records – more than 80 years apart – represent the continuous presence of this species in this area. The habitat has been a military training field with open heathland since the late 1600s. The recent rediscovery, combined with the fact that the species has proved to be surprisingly hard to find, awakens hope there may still remain other undiscovered populations in western Sweden.

Föreningsinformation

Sveriges entomologiska förening — 2023-09-08

Sveriges entomologiska förening (SEF) är en riksorganisation för entomologiska föreningar i Sverige. Medlemmar i SEF är de föreningar som presenteras nedan. SEF har som uppgift att ge ut Entomologisk Tidskrift och att stimulera intresset för entomologi i Sverige, bland annat genom att stödja bildandet av insektsföreningar i nya områden.