L. nigerrimus (Gyllenhal, 1827)
References: Müthel 1889; Seidlitz 1887 -1891; Rathlef 1905; Palij 1958; Pūtele 1965, 1970a, 1970b, 1971; Barševskis 1993, 2002; Telnov et al. 1997; Telnov 2004; Kalniņš et al. 2007.
Examined material: Not confirmed by the author.
Host plants: Lentibulariaceae ( Utricularia vulgaris).
Phenology: V.
General distribution: N Europe (relicy localities in W and C Europe, Alps), Caucasus, Siberia (east to Amur). [SIE]
Note: In Latvia, this species is known from two localities (Palij 1958; Barševskis 1993). Record needs confirmation.
According to the catalogue of Silfverberg (2004), it is mentioned for all countries.