Catalogue of the hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. Author Smith, F. text 1858 British Museum London http://antbase.org/ants/publications/8127/8127.pdf book 8127 C86CFDBF-61D9-48EE-9C2E-325FC0462B10 23. Myrmica diluta . Myrmica diluta, Nyl. Addit . alt. Adno. Mon. Form. Bor. Eur. 41.9. Hab. South Russia.