Bicilia iarchasalis is a species of moth in the family Crambidae.

It is found in the south-eastern United States, where it has been recorded from Florida[1] and Texas, as well as in Mexico, Cuba,[2] the Dominican Republic, Puerto Rico and Venezuela.

[3] Adults are on wing from March to May and from August to September.

The larvae feed on Rivina humilis.

This Spilomelinae-related article is a stub.