Temnostoma angustistriatum Krivosheina, 2002

Heimburg, Helge, Doczkal, Dieter & Holzinger, Werner E., 2022, A checklist of the hoverflies (Diptera: Syrphidae) of Austria, Zootaxa 5115 (2), pp. 151-209 : 158

Temnostoma angustistriatum Krivosheina, 2002

Examined material. Styria: Liezen, Admont , NP Gesäuse, 18.4.2014 (1♂), leg. D. Ivenz, det. D. Doczkal ; Liezen, Admont , NP Gesäuse 570 m, 47°35’25’’ N, 14°38’02’’ E, 24.6.2016 (1♂), leg. H. Heimburg, det. D. Doczkal.

Notes. Two specimens are currently known from Austria. Both specimens were collected at the Gesäuse National Park (Styria) within a humid mixed forest dominated by Picea spp. Little is known about its preferred habitat and distribution. Until recently, it was considered as a boreal species with a range that extends from Norway and Finland to Siberia and the Pacific coast region ( Speight 2020). Individual records from more southern areas of Europe indicate that small populations of T. angustistriatum have remained at glacial relict sites (Dieter Doczkal unpublished data). In terms of morphological characters, T. angustistriatum looks very similar to T. bombylans (Fabricius, 1805) . A way to distinguish these two species properly is to compare the male terminalia, figured by Krivosheina (2002).