Aphanisticus emarginatus (Olivier, 1790)

on Eleocharis, Juncus

mine

In plants with recognisable leaves oviposition primarily on the auricles, otherwise on leaf sheaths or stem. Oviposition site covered with a jet black shining drop of dried secretion. From here starts a shallow, winding corridor of 35-50 mm length and eventually ca. 1 mm wide. Usually the corridor first descends, finally turns up. At some points the corridor dives deeper into the plant tissue and is invisible for a short stretch. In these deeper sections, that generally are crammed with frass, moulting takes place. Frass yellow, initially fine grained, later coarser. Pupation in the mine in the final section of the corridor, which is widened into a pupal chamber (Bilý, 2002a; Rennwald & Rennwald, 2002a).

host plants

Cyperaceae, Juncaceae, restricted polyphagous

Eleocharis; Juncus acutiflorus, articulatus, compressus, conglomeratus, effusus, subnodulosus.

Reports of Carex are dubious(Schaefer, 1949a).

phenology

Larva from mid May till early July (Rennwald & Rennwald, 2002a, Niehuis, 2004a)

BENELUX

BE recorded (Rennwald & Rennwald 2002a; Niehuis, 2004a).

NE recorded (Vorst, 2009a).

LUX recorded (Rennwald & Rennwald 2002a; Niehuis, 2004a).

distribution within Europe

From Britain to Greece, and from South Russia to Spain (Fauna Europaea, 2011).

larva

not described (Bilý, 1982a)

references

Bilý (1982a, 2002a), Buhr (1933a), Cobos (1986a), Hering (1957a), Niehuis (2004a), Rennwald & Rennwald (2002a), Sánchez Sobrino & Tolosa Sánchez (2005a), Schaefer (1949a), Théry (1942a), Ugarte San Vicente (2005a), Ugarte san Vicente, Zabalegui & Salgueira Cerezo (2006a), Verdugo Paez (1997a), Vorst (2009a).

mod 22.vi.2019