EN · jet ant, jet black ant
DE · Glänzendschwarze Holzameise, Kartonameise
LT ·
juodoji medžių skruzdėlė
PL · kartonówka zwyczajna, kartoniarka czarna
Workers of Lasius fuliginosus have a black shiny colour, a relatively large head, broadly cordate, with a distinct posterior emargination and rounded occipital lobes. Over the dorsum is present a sparse pubescence and scattered erect hairs. Legs are brownish yellow.