Myrmica simillima Smith The Formicidae (Hymenoptera) of Fennoscandia and Denmark. Collingwood, C. A. Fauna Entomologica Scandinavica 1979 8 1 174 7BT7D urn:lsid:biosci.ohio-state.edu:osuc_concepts:37226 Insecta Formicidae Tetramorium Animalia Tetramorium simillimum (Smith) Hymenoptera 85 Arthropoda species simillimum   Myrmica simillima Smith, 1851:118.  Workers and queen. Weakly sculptured, pale red much smaller than T. guineense. Length of worker: 1.6-2 mm, queen: 2.2-2.5 mm. Male. Light yellowish red; occiput rounded. Length: 2.5 mm.  Biology. This cosmopolitan species occasionally occurs in heated glasshouses in Europe and has been recorded from Denmark and also on several occasions in England.