Trachys troglodytes Gyllenhal, 1817
Succisa pratensis, Belgium, prov. Brabant Wallon, Rixensart, le Carpu: upperside of the leaf, with oviposition droplet © Jean-Yves Baugnée
Succisa pratensis, Belgium, prov. Namur, Agimont © Jean-Yves Baugnée
Succisa pratensis, Belgium, prov. Namur, Dourbes © Stéphane Claerebout
mine
Full depth, transparant blotch. Oviposition site, at the leaf upper surface, covered by a brownish black drop of hardened secretion. Frass in granules or thread fragments. Pupa in the mine, not in a cocoon.
host plants
Caprifoliaceae, oligophagous
Cephalaria; Knautia arvensis, dipsacifolia; Scabiosa canescens, columbaria; Succisa pratensis.
Succisa seems the normal host plant.
phenology
Larvae in June-July (Hering, 1957a).
BENELUX
BE observed (Bilý, 2002a; Fauna Europaea, 2007).
NE observed (Vorst, 2009a).
LUX observed (Fauna Europaea, 2007).
distribution within Europe
Almost all of Europe, Ireland excluded (Fauna Europaea, 2007).
larva
references
Allen (1969a), Bilý (1982a, 1993a), Brechtel & Kostenbader (2002a), Buhr (1933a, 1964a), Gottwald & Hornburg (2004a), Hering (1925b, 1930a, 1957a), Niehuis (2004a). Panin, Săvulecu & Ruicănescu (2015a), Robbins (1991a), Sakalian (2009a), Schaefer (1949a), Škorpík, Křivan & Kraus (2011a), Sønderup (1949a), Théry (1942a), Verdugo Páez (2002a), Volkovitsh (2004a), Vorst (2009a).