original descriptionLoomis, H. F. (1964). The millipeds of Panama (Diplopoda). Fieldiana, Zoology, 47(1): 1-136. Chicago page(s): 126 [details]
additional sourceHoffman, R. L. (1999). Checklist of the millipedes of North and Middle America. <em>Virginia Museum of Natural History, special publication.</em> 8: 1-584. page(s): 180 [details]
new combination referenceLoomis, H. F. (1974). Millipeds from southern Costa Rican highlands. Florida Entomologist, 57(2): 169-187 page(s): 183; note: Irazunus chiriquensis [details]
Present Inaccurate Introduced: alien Containing type locality