Name Authorship Pages Forms Locality Notes
Leptothorax melanderi Wheeler, 1909e 81 w. U.S.A. (Idaho)
Leptothorax melanocephalus Emery, 1870 197 w. FRANCE (Corsica)
Leptothorax melas Espadaler et al., 1984 123, figs. 1-15 w.q.m. FRANCE (Corsica)
Leptothorax melleus subsp. csikii Pisarski, 1969b 298, figs. 1-4 w. MONGOLIA
Leptothorax melnikovi Ruzsky, 1905b 599, figs. 143, 144 w. KAZAKHSTAN
Leptothorax mimeuri Cagniant, 1997 270, fig. 6 w. MOROCCO
Leptothorax minozzii Santschi, 1922b 68
Leptothorax minutissimus Smith, 1942a 59, pl. 6 q. U.S.A. (District of Columbia)
Leptothorax mirabilis Espadaler & Cagniant, 1996 332, figs. 1-4 w.q.m. MOROCCO
Leptothorax monjauzei Cagniant, 1968b 83, figs. w.q.m. ALGERIA
Leptothorax mulleri Santschi, 1926f 293
Leptothorax muscorum uvicensis Blacker, 1992 7, fig. 2 w. CANADA (British Columbia) Leptothorax muscorum group sp. “uvicensis”
Leptothorax muscorum var. betulae Ruzsky, 1916 6 w. RUSSIA
Leptothorax muscorum var. flavescens Ruzsky, 1896 72 w. RUSSIA
Leptothorax muscorum var. sordidus Wheeler, 1903d 224, pl. 12, fig. 2 w. U.S.A. (Colorado)
Leptothorax nadigi Kutter, 1925 409, figs. w.q. SWITZERLAND
Leptothorax naeviventris Santschi, 1910b 62 w.q.m. TUNISIA
Leptothorax naeviventris st. kefensis Santschi, 1929e 153 w.q. TUNISIA
Leptothorax narinicus Tarbinsky, 1976 93, figs. 151-153, 181-183, 187 w.q. KYRGYZSTAN
Leptothorax nassanowi Ruzsky, 1895 26 w. RUSSIA
Leptothorax nassonovi subsp. firssovi Kuznetsov-Ugamsky, 1928b 28, fig. 5 w. RUSSIA (Primorsky Krai)
Leptothorax nassonovi subsp. volgensis Ruzsky, 1905b 582 w. RUSSIA
Leptothorax nassonovi var. subnudus Ruzsky, 1905b 581 w. CHINA
Leptothorax neminan Espadaler, 1997 280, fig. 30 w. MOROCCO
Leptothorax neomexicanus Wheeler, 1903d 248, pl. 12, fig. 18 w. U.S.A. (New Mexico)
Leptothorax nevadensis Wheeler, 1903d 252, pl. 12, fig. 20 w.q.m. U.S.A. (Nevada)
Leptothorax nevadensis subsp. rudis Wheeler, 1917a 508 w.q. U.S.A. (California)
Leptothorax niger st. laestrygon Santschi, 1931a 7 w.q.m. ITALY (Sicily)
Leptothorax nigriceps Mayr, 1855 441 w. AUSTRIA
Leptothorax nigriceps var. pyrenaeus Bondroit, 1918 126 w.q. FRANCE
Leptothorax nigrita Emery, 1878c 51 (footnote) fig. w. ALGERIA
Leptothorax nigrita var. curvispinosus André, 1881c 72 (in text) w. ISRAEL
Leptothorax nigrita var. flavispinus André, 1883a 302
Leptothorax nigrita var. rupestris Forel, 1909k 377 w.q. ALGERIA
Leptothorax nigrita var. saharensis Santschi, 1929c 102, fig. 4 q. ALGERIA
Leptothorax nigrita var. salambo Santschi, 1912f 174 w. TUNISIA
Leptothorax nikitae Arnol'di, 1977a 202 w. UKRAINE (Crimea)
Leptothorax nipensis Fontenla Rizo, 1998b 67, fig. 6 w. CUBA
Leptothorax nitens subsp. occidentalis Wheeler, 1903d 245 w. U.S.A. (Washington)
Leptothorax nitens var. heathii Wheeler, 1903d 245 w. U.S.A. (California)
Leptothorax nitens var. mariposa Wheeler, 1917a 507 w. U.S.A. (California)
Leptothorax nitidulus var. picea Wasmann, 1906 120 w. LUXEMBOURG
Leptothorax nivarianus Santschi, 1925g 343 w.q. SPAIN (Canary Is)
Leptothorax nivarianus var. guancha Santschi, 1925g 344 w.q. SPAIN (Canary Is)
Leptothorax nordmeyeri Schulz, 1997 305, figs. 1-4 w. INDIA (Goa)
Leptothorax normandi Santschi, 1912f 173, fig. 3 w. TUNISIA
Leptothorax normandi st. atlantis var. suturalis Santschi, 1921b 426 w. MOROCCO
Leptothorax nudus Mayr, 1866a 508 w. FIJI IS
Leptothorax nylanderi form. euxanthus Plateaux, 1981 64
Leptothorax nylanderi form. pseudoxanthus Plateaux, 1981 64