William Clark, History of the Expedition Under the Command of Captains Lewis and Clark…
“ They are found in great numbers on the banks of the Missouri, and in the plains through which we have passed above the Wollawollahs.Most of the insects common to the United States are seen in this country: such as the butterfly, the common housefly, the blowingfly, the horsefly, except one species of it, the gold-coloured earfly, the place of which is supplied by a fly of a brown colour, which attaches itself to the same part of the horse, and is equally troublesome. ”
