The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
Hemiptera: Aphididae; local.
VC1: SW87 Porthcothan in 2008, a first record for Cornwall.
Habitat & Ecology
Associated species: Mugwort Artemisia vulgaris . Gall causes some or most of the leaves to be thickened and curled together, especially towards the shoot tip; these are often pinkish purple and aphids are present under the leaves. The host plant is distributed all over Cornwall, and it seems strange that these aphids have not previously been recorded.
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.