Lasius fuliginosus is a species of ant in the subfamily Formicinae. Workers have a black shiny colour and a length of about 4–6 mm, females are larger and small males reach a length of 4.5–5 mm. The head is heart-shaped.
Similar species: Wasps, Bees, Sawflies And Ants
Uploaded Mar 27, 2023. Captured Mar 26, 2023 13:49 in M894+48 Sofia, Bulgaria.