Conchylodes octonalis, the eight-barred lygropia moth, is a snout moth in the family Crambidae. It was described by Zeller in 1873.[1] It is found in North America, where it has been recorded from central and southern California to Texas and from Iowa, Mississippi, Nevada, New Mexico, Oklahoma and Tennessee.[2] The habitat consists of low-elevation arid areas.
The length of the forewings is 7.5-8.5 mm. Adults are on wing from late March to October.
The larvae have been recorded feeding on Heliotropium curassavicum.[3]