Size
Workers: 3 to 5.5 mm. Females: 7–10 mm. Males: 7-4,5 mm
Identification
Combination of:
- Contrasting orange-brown alitrunk (apparent thorax, i.e. actually thorax + propodaeum) and
- Long scapi (1rst antennal segments) overreaching the vertex.
Life Cycle
Queens may live for 30 years, workers, 3 years.
Remarks
Introduced very recently from the Mediterranean and central Europe (Europe, Caucasus, Asia Minor).