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This is an inadequately characterised species. It is mainly found in South and Central Europe and most easily recognised in the queen caste. It is like a larger, paler L. mixtusHNS but has more abundant genal hairs and a high broadly emarginate scale. The worker has occasional tibial hairs and longer body hairs than L. mixtusHNS and would be more easily confused with L. umbratusHNS. According to B. Pisarski (priv.commun.) it occurs in North Germany and probably also in Poland.
Found most commonly in these habitats: 4 times found in Unknown, 3 times found in Rocks (rocky-calcareous grasslands), 2 times found in village, 1 times found in roadside in village.
Found most commonly in these microhabitats: 2 times on the ground, 1 times foraging on ground.
Collected most commonly using these methods: 3 times Pitfall trap, 3 times search, 2 times Manual catch.
Elevations: collected from 250 - 1106 meters, 702 meters average
Collect Date Range: collected between 1883-07-01 and 2019-07-23
Type specimens: Lectotype of Lasius distinguendus: casent0905682; syntype of Formicina umbrata nuda: casent0915376; syntype of Formicina umbrata nuda: casent0912284; syntype of Formicina umbrata distinguenda hybrida: casent0905683