Fig. 1From: Presence of a cryptic Onchocerca species in black flies of northern California, USALocations of adult black fly collection sites in Lake County, California. Each collection site is marked with a black dot. Sites denoted with a right-staggered red star indicate an Onchocerca-positive PCR test in 2015 (n = 4), and sites denoted with a left-staggered blue star indicate an Onchocerca-positive PCR test in 2016 (n = 3)Back to article page