Planetella gallarum (Rübsaamen, 1899)

Fjellberg, Arne & Fedotova, Zoya, 2024, New records of gall midges (Diptera, Cecidomyiidae) from Norway, Norwegian Journal of Entomology 71, pp. 8-94 : 47-48

* Planetella gallarum (Rübsaamen, 1899)

( Figure 25 C–D )

Material: TEY, Kragerø : Stråholmen, 58.89992°N 9.64763°E ± 20m, 26 September 2022, L, leg . AF, coll. Private; VE, Faerder : Moutmarka, 59.06457°N 10.40060°E ± 20m, 28 September 2022, MF, leg . AF, coll. Private.

Biology: The white larvae develop in oblong, smooth, brown galls situated on the lower part of the stem or on the ground leaves of Carex spp. ( Cyperaceae ). Our records are from Carex cf. nigra which grew in wet situation (pondside). Univoltine; pupation and hibernation in the gall.

Distribution: Known from several European countries including Norway and Denmark.

Figures

FIGURE 25. A–B. Planetella arenariae. A. Galls on root collar of Carex arenaria. B. Front of larva, ventral view, showing forked sternal spatula. C–D. Planetella gallarum. C. Galls on root collar of Carex cf. nigra. D. Front of larva, ventral view, showing single-toothed sternal spatula. Photos:A. Fjellberg (A, C, D), H. Elven (B).