Calyptomyrmex laotius valid Laos. Indomalaya.
Jaitrong, W.; Yamane, S. 2018. A new species of the ant genus Calyptomyrmex Emery, 1887 (Hymenoptera: Formicidae: Myrmicinae) from Laos and new records of C. rectipilosus from Thailand and Hong Kong. Natural History Bulletin of the Siam Society 62 (2):131-139.   143172