06/12/2026
Those tiny bumps or seed-like clusters you see on the shell or head of a crawfish are eggs laid by the water boatman, a common aquatic insect.They are often mistaken for mud or warts and are perfectly natural and harmless.
Key FactsWhat they are: Water boatman bugs use the hard shells of mature crawfish as a safe place to glue their eggs, particularly around the face and eyes.
Seasonality: You are most likely to see them during the late part of the crawfish season when natural vegetation in the water thins out.
Safety: The eggs are completely safe and do not affect the edibility or taste of the crawfish.
Removal: They can be difficult to rinse or wash off unless each crawfish is individually washed.
