Habitats of Bembidion corgenoma A USA: Oregon: Benton Co., Corvallis, Willamette River, 60 m, 44.5491°N, 123.2449°W (type locality). B. corgenoma and B. recticolle are both common in this habitat. B. corgenoma is more common near the water in areas with vegetation growing nearby among the gravel and cobbles B USA: California: Del Norte Co., Wilson Creek, 3 m, 41.6051°N, 124.1005°W, habitat of B. corgenoma and B. erosum, as well as Bembidion haruspex Casey, B. vandykei Blaisdell, B. curtulatum Casey, B. platynoides Hayward, and B incrematum LeConte.