Bactericera femoralis (Förster, 1848)
Alchemilla spec., Belgium, prov. Liège, Büllingen, Steingrube © Carina Van Steenwinkel
Locally the leaf is discoloured, sometimes indented upwards. In the space below a roundish-oval, strongly depressed larva, encircled by wax threads. Eggs, if present, stand on a stalk about as long as the egg itself. Bivoltine; hibernation as adult in conifers.
Alchemilla glabra, pratensis, vulgaris
Trioza femoralis. Contrary to what is stated by Redfern & Shirley, B. acutipennis is not a synonym of femoralis; that is a species living on Comarum palustre.
Baugnée, Burckhardt & Fassotte (2002a), Bin (1972a), Buhr (1964b), Burckhardt (2002a), Burckhardt & Freuler (2000a), Burckhardt & Thaler (1989a), Conci, Rapisarda & Tamanini (1996a), Dauphin & Aniotsbehere (1997a), Hellrigl (2004a), Hodkinson (2009a), Lauterer (1976a), Malenkovský & Lauterer (2012a), Ossiannilsson (1992a), Ouvrard, Burckhardt & Cocquempot (2015a), Redfern & Shirley (2011a), Seljak & Malenkovský (2014a).