Claim: Corydalus affinis is a species of Dobson fly found in Amazonian lowlands with a forewing length of 32-58 millimeters.
Evidence: Corydalus affinis is a species of dobsonfly in the genus Corydalus. It is found mainly in Amazonian lowlands. Forewing length ranges from 32-58 millimeters, with the females slightly larger than the males.