Myrmica rugulosa Nylander, 1849

Belgium: • 1 dealate gyne; N51.205° E4.399°; v/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♂, 3 dealate gynes; N51.205° E4.399°; viii/2020; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♂; N51.205° E4.399°; ix/2020; J. Jacobs leg.; coll. RBINS; W. Dekoninck det. • 1 dealate gyne; N51.125° E4.260°; iv/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 dealate gyne; N51.197° E4.463°; viii/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 dealate gyne; N51.135° E4.241°; ix/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. • 1 ♀ (worker); N51.197° E4.463°; ix/2021; J. Jacobs leg.; coll. RBINS; pitfall trap; W. Dekoninck det. [7 occ. (2 years), 4 roofs]

Remarks:

Males and dealate gynes of M. rugulosa were found on several other green roofs. However workers were found on only one green rooF. We consider this species as a rare species on green roofs.