Cochlefelis insidiator
{{Short description|Species of fish}}
{{Speciesbox
| image =
| image_caption =
| status = DD
| status_system = IUCN3.1
| status_ref =
| genus = Cochlefelis
| species = insidiator
| authority = (Kailola, 2000)
| synonyms = * Arius insidiator Kailola, 2000
- Hemiarius insidiator (Kailola, 2000)
}}
Cochlefelis insidiator, the flat catfish,[https://www.fishbase.de/ComNames/CommonNamesList.php?ID=60003&GenusName=Cochlefelis&SpeciesName=insidiator&StockCode=49753 Common names of Cochlefelis insidiator] at www.fishbase.org. is a species of catfish in the family Ariidae.{{fishbase species |genus=Cochlefelis |species=insidiator |month=January |year=2019}} It was described by Patricia J. Kailola in 2000, originally under the genus Arius. It occurs in rivers, mudflats and marine waters on the coasts of Papua New Guinea and Australia. It reaches a standard length of {{convert|35|cm|in|abbr=on}}.