Sampling sites for Monomorium brachypterum and M. intrudens in central and southern Japan. Arrows indicate all known populations of M. brachypterum, which occur exclusively in areas where M. intrudens is also present.

 
 
  Part of: Idogawa N, Dobata S, Okada Y, Yamane S (2025) A new species of Monomorium Mayr, 1855 (Hymenoptera, Formicidae) with a brachypterous queen from southern Japan, and phylogeny of Japanese Monomorium species with diverse reproductive strategies. ZooKeys 1250: 49-78. https://doi.org/10.3897/zookeys.1250.150776