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Rabdophaga jaapi
Species of fly From Wikipedia, the free encyclopedia
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Rabdophaga jaapi is a species of gall midges which forms galls on creeping willow (Salix repens).
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Description
The gall is an enlarged bud on S. repens. It is surrounded with small thickened leaves which have short silver-white hairs.[1] Correct identification of the species of Salix is important for the identification of R. jaapi, because it is similar to R. rosariella, which forms galls on sallows.[a] The gall of R. jaapi can also be positively identified by the single reddish-yellow larva which has a sternal spatula, i.e. ″... a structure on the underside of the thorax of the final (third) instar larva of Cecidomyiidae...″.[1][2]
The species has one generation a year (i.e. univoltine) and the larva hibernates in the gall where it pupates.[3]
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Distribution
Has been found in Denmark and Great Britain.
Notes
- In this case sallow refers to S. aurita, S. caprea and S. cinerea.
References
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