Bactericera femoralis (Förster, 1848)

on Alchemilla

Bactericera femoralis larva on Alchemilla spec.

Alchemilla spec., Belgium, prov. Liège, Büllingen, Steingrube © Carina Van Steenwinkel

Bactericera femoralis larva on Alchemilla spec.

larva

gall

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.

host plants

Rosaceae, monophagous

Alchemilla alpina, glabra, pratensis, subcrenata, vulgaris

synonyms

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.

references

Baugnée, Burckhardt & Fassotte (2002a), den Bieman, Malenovský, Burckhardt & Heijerman (2019a), Bin (1972a), Buhr (1964b), Burckhardt (2002a), Burckhardt & Freuler (2000a), Burckhardt & Thaler (1989a), Conci, Rapisarda & Tamanini (1996a), Dauphin & Aniotsbehere (1997a), Hellrigl (2004a), Hodkinson (1989a, 2009a), Lauterer (1976a), Malenkovský & Lauterer (2012a), Ossiannilsson (1992a), Ouvrard, Burckhardt & Cocquempot (2015a), Redfern & Shirley (2011a), Seljak (2020a), Seljak & Malenkovský (2014a).