, Volume 8, Issue 2, pp 117-123

Tetramorium tsushimae, a New Invasive Ant in North America

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Combining molecular and morphological evidence, an invasive ant in Missouri and Illinois, USA, is identified as Tetramorium tsushimae Emery, 1925, a polygynous-polycalic species native to East Asia. T. tsushimae is recorded as invasive for the first time. RFLP and worker morphometrics provide tools for reliable determination. Mitochondrial DNA data reveal the probable geographic origin of the invasive populations to be Japan.

The first two authors contributed equally to this work.