Physemocecis ulmi (Kieffer, 1909)

Fjellberg, Arne & Fedotova, Zoya, 2024, New records of gall midges (Diptera, Cecidomyiidae) from Norway, Norwegian Journal of Entomology 71, pp. 8-94 : 79

publication ID	https://doi.org/10.5281/zenodo.15883449
persistent identifier	https://treatment.plazi.org/id/58317C7D-B152-FFCE-9D52-D858E4EC8379
treatment provided by	Felipe
scientific name	Physemocecis ulmi (Kieffer, 1909)
status

Treatment

Physemocecis ulmi (Kieffer, 1909) View in CoL

( Figure 47 View FIGURE 47 )

Material: AK, Baerum: Fornebu, Rolfstangen,

59.890374°N 10.633679°E ± 10m, 18 June 2022, 3L, leg. HE & TS GoogleMaps , coll. NHMO; Oslo: Gressholmen , 59.884572°N 10.721779°E ± 7m, 1 July 2020, 5L, leg. HE GoogleMaps , coll. NHMO; Lillestrøm: Lillestrøm , Åråsen , 59.965767°N 11.064616°E ± 6m, 22 June 2020, 4L, leg. TS, BOLD GoogleMaps : NHMO- ENT-548039, coll. NHMO; 59.966010°N 11.064613°E ± 20m, 29 June 2020, 2L, leg. TS, BOLD GoogleMaps : NHMO-ENT-548054, coll. NHMO.

Biology and notes: The white larvae develop in lenticular leaf galls on Ulmus spp. ( Ulmaceae ). Our records are all from Ulmus glabra . The gall protrudes slightly on the upper side of the leaf and is surrounded by a yellowish ring, which often develops only after the larva has left the gall. Univoltine; pupation and hibernation in the soil. One of our larvae was barcoded. Surprisingly, it nested among Macrolabis in the barcode tree.

Distribution: Widespread in Europe including Norway, Sweden and Denmark.