The species was described by Hendrik Freitag of the Senckenberg Museum of Zoology in Dresden, Germany, having previously been included in a wider circumscription of I. unicorn. The species is endemic to the island of Palawan, where it has a wide distribution. The striking iridescent purple coloration may help the crabs to recognise others of its species, or may serve no purpose.
- Hendrik Freitag (2012). "Revision of the genus Insulamon Ng & Takeda, 1992 (Crustacea: Decapoda: Potamidae) with description of four new species" (PDF). Raffles Bulletin of Zoology 60 (1): 37–55.
- "Newly discovered purple crabs". Yahoo! News. Retrieved April 25, 2012.
- "Pretty in Purple". National Geographic Society. April 18, 2012. Retrieved April 25, 2012.
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