4. Myrmica rugulosa ^HNS. B.M.

Myrmica rugulosa ^HNS, Nyl. Addit. alt. Adno. Mon. Form. Bor. Eur. 32; Form. Fr. et d'Alger. 80. 5.

Mayr. Form. Austr. 133. 3.

Myrmica clandestina, Foerst ^HNS. Hym. Stud. Form. 63. 34.

Schenck, Beschr. Nass. Ameis. 84.

Hab. Britain; France; Germany; Switzerland; Finland.