Dasineura berti Sylvén, 1993

Fjellberg, Arne & Fedotova, Zoya, 2024, New records of gall midges (Diptera, Cecidomyiidae) from Norway, Norwegian Journal of Entomology 71, pp. 8-94 : 58

Dasineura berti Sylvén, 1993

( Figure 35)

Material: ON, Lom: Utløpet Bøvertunvatn, 61.64613°N 8.09829°E ± 50m, 17 July 2019, 7L, leg. AF, BOLD : NHMO-ENT-548152, coll. NHMO.

Biology and notes: This species, which develops on Astragalus alpinus ( Fabaceae ), is known only from Norway. To our knowledge, the species has only been recorded twice before. Trail (1889) first found the galls on the road from Eidfjord (“Oifjord”) to Vøringsfossen (“Voringfos”) in Eidfjord municipality in 1878. He described the galls as “inflated, conduplicate, yellowish-green, rather fleshy, isolated leaflets, or terminal swellings on the young stems, made up of a mass of ill-formed young leaves of the bud, the whole mass being often about the size of a large pea”. The species was formally described more than 100 years later by Sylvén based on material collected at Kongsvold in 1988 ( Sylvén & Tastás-Duque 1993). Sylvén described the larval color as cadmium orange. We collected the species in Lom in 2019. The color of the living larvae was not noted, but the preserved larvae are pale yellowish orange ( Figure 35 B). The galls are shown in