Rabdophaga karschi

Rabdophaga karschi is a gall midge which forms galls on the twigs of sallows (Salix species).

Rabdophaga karschi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Cecidomyiidae
Genus: Rabdophaga
Species:
R. karschi
Binomial name
Rabdophaga karschi
(Kieffer, 1891)
Synonyms

Rhabdophaga karschi (Kieffer)
Rhabdophaga oculiperda Rübsaamen, 1921
Rabdophaga oculiperda (Rübsaamen, 1921)
Cecidomyia karschi Kieffer, 1891

Description

The genus Salix supports many galls, some of which are difficult to identify, particularly those caused by the gall midges in the genus Rabdophaga. R. karschi forms galls on the twigs of sallows.[lower-alpha 1] The gall is an approximately 3 mm wide, slender, spindle-shaped swelling of a twig. There is one red larva or a pupa and the larva makes an exit hole in the galled stem or occasionally in a bud.[1][2]

Distribution

The gall has been found in the Czech Republic, Great Britain and the Netherlands.[1][3][4]

Notes
  1. In this case sallow refers to S. aurita, S. caprea, S. cinerea and their hybrids.

References
  1. Redfern, Margaret; Shirley, Peter; Boxham, Michael (2011). British Plant Galls (Second ed.). Shrewsbury: Field Study Council. pp. 282–299. ISBN 978 185153 284 1.
  2. Ellis, W N. "Rabdophaga karschi (Kieffer, 1891)". Plant Parasites of Europe. Retrieved 21 March 2018.
  3. "Rabdophaga karschi (Kieffer, 1891)". BioLib.CZ. Retrieved 26 November 2017.
  4. Beuk, Paul L; Nijveldt, Wim C. "Checklist of the Diptera of the Netherlands". diptera.info. Retrieved 26 November 2017.
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