Contarinia nasturtii (Kieffer, 1888)

Fjellberg, Arne & Fedotova, Zoya, 2024, New records of gall midges (Diptera, Cecidomyiidae) from Norway, Norwegian Journal of Entomology 71, pp. 8-94 : 38-40

Contarinia nasturtii (Kieffer, 1888)

Material: VE, Larvik: Gurvika, 58.96483°N 9.86307°E ± 50m, 18 August 2019, Galled flowers of Raphanus raphanistrum , L, leg. AF, BOLD : NHMO-ENT-548139, coll. NHMO.

Biology: The yellow larvae develop on a wide range of Brassicaceae . They develop gregariously either in the flower buds, which become strongly swollen and remain unopened, or in the terminal shoots, which then become swollen and shortened. Multivoltine; pupation and hibernation in the soil. The species is considered an economically significant pest.

Distribution: Widespread in Europe including

Norway, Sweden, Denmark and Finland. Asia and regarding whether midges from Convallaria and Northern Africa. Introduced to the Nearctic. Polygonatum belong to the same species. If they

are not conspecific, our identification will need to Contarinia petioli (Kieffer, 1898) be revised.

Material: AAY, Tvedestrand: Askerøya, Distribution: Known from a few European Kibbevik, 58.610887°N 9.077196°E ± 4m, countries including Norway, Sweden and Den- 19 June 2021, L, leg. HE, coll. NHMO; TEI, mark. European part of Russia .

Seljord: Blika, 59.5914013°N 8.5615844°E

± 100m, 18 June 2019, L, leg. SH, BOLD: * Contarinia pruniflorum Coutin & Rambier , NHMO-ENT-548107, coll. NHMO; AK, Asker: 1955

Brønnøya, Pilbogen plot 41/177, 59.853934°N Material: AK , Asker: Brønnøya, Sandbukta , 10.527666°E ± 3m, 31 May 2020, L, leg. HE & 59.857474°N 10.529078°E ± 50m, 13 May 2019, TS , coll. NHMO; Oslo: Ellingsrud , 59.932221°N L, leg. HE , coll. NHMO; 11 May 2020, L, leg. 10.906987°E ± 6m, 6 June 2021, L, leg. HE , coll. HE, coll. NHMO.

NHMO; 59.936680°N 10.920363°E ± 50m, 17 Biology: The yellowish white larvae develop June 2022, L, leg. HE, coll. NHMO; 59.929600°N one or several together in galled flower buds of 10.913064°E ± 200m, 19 June 2022, LM, leg. HE, Prunus spp. ( Rosaceae ). Our records are from P. coll. NHMO; Nannestad: Aurmoen, 60.243180°N spinosa. Infected buds become slightly swollen 11.098261°E ± 500m, 7 July 2020, L, leg. HE & and do not open properly. Univoltine; pupation TS, coll. NHMO; TRI, Storfjord: Skibotndalen, and hibernation in the soil.

Lullefjellet, 69.303553°N 20.440693°E ± 700m, Distribution: Known from a few European 4 July 2019, L, leg. HE, coll. NHMO. countries including Norway . Turkey .

Biology: The bright orange larvae develop

in roundish galls on the petioles and leaf bases * Contarinia quercina (Rübsaamen, 1890)

of Populus tremula , rarely also on other Populus Material: VE, Larvik: Aske, 58.994287°N species ( Salicaceae ). Our records are all from 9.946649°E ± 450m, 25 July 2021, on Quercus Populus tremula . Each gall may contain a single robur , 5L, leg. SH, coll. NHMO.

or several larvae, each in a separate chamber. Biology: The white to yellowish larvae develop Univoltine; pupation and hibernation in the soil. gregariously in shoots of Quercus spp. ( Fagaceae ),

Distribution: Widespread Palearctic, includ- causing an irregular rosette of malformed leaves. ing Norway, Sweden, Denmark and Finland. Bilvoltine; pupation and hibernation in the soil.

Distribution: Widespread in Europe including * Contarinia polygonati Rübsaamen, 1921 Norway, Sweden, Denmark and Finland.

Material: AK, Asker: Brønnøya, Sandbukta,

59.857474°N 10.529078°E ± 50m, 29 May Contarinia quinquenotata (F. Löw, 1888)

2019, L, leg. HE, coll. NHMO; Brønnøya, Material : AK , Oslo: Tøyen, Botanical Kalkovnfaret 3, 59.861092°N 10.537691°E ± Garden , 59.918752°N 10.771581°E ± 20m, 24 10m, 3 June 2022, LMF, leg. HE , coll. NHMO; June 2019, on Hemerocallis lilioasphodelus, Brønnøya, Vendelveien plot 41/180, 59.861711°N LMF, leg. HE , coll. NHMO.

10.542326°E ± 15m, 3 June 2022, L, leg. HE, coll. Biology and notes: The white to pale yellow NHMO. larvae develop gregariously in galled flower

Biology and notes: The white larvae buds of Hemerocallis fulva ( Asphodelaceae ). develop one or several together in galled flower Our record is from H. lilioasphodelus , which buds of Convallaria majalis and Polygonatum represents a new host plant. Infected buds do spp. ( Asparagaceae ). Our records are all from not open and become swollen and disfigured. Convallaria majalis . Infected buds do not Univoltine; pupation and hibernation in the soil. open. Univoltine; pupation and hibernation in This species is alien in our region. Skuhravá & the soil. Note that there is some uncertainty Skuhravý (2012) first reported it from Norway based on material collected from Hemerocallis fulva in Stjørdal i 2003.

Distribution: Native to Asia. Widespread in Europe including Norway, Sweden and Denmark. Introduced to New Zealand and the Nearctic.