A Rare And Cryptic Endemic Of The Central Rocky Mountains, U. S. A: The Distribution Of The Arapahoe Snowfly, Arsapnia Arapahoe (Nelson & Kondratieff, 1988) (Plecoptera: Capniidae) Author Fairchild, Matthew P. , Thomas P. Belcher III & United States Forest Service, 2150 Centre Avenue, Fort Collins, Colorado, 80526, U. S. A. E-mail: mfairchild @ fs. fed. us mfairchild@fs.fed.us Author Belcher Iii, Thomas P. , Robert E. Zuellig & Department of Ecology, Colorado State University, Fort Collins, Colorado, 80523, U. S. A. E-mail: ChipBelcher @ gmail. com ChipBelcher@gmail.com Author Zuellig, Robert E. , Nicole M. K. Vieira & United States Geological Survey, Colorado Water Science Center, Denver, Colorado, 80523, U. S. A. E-mail: rzuellig @ usgs. gov rzuellig@usgs.gov Author Vieira, Nicole M. K. , and Boris C. Kondratieff & Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, Colorado, 80523, U. S. A. E-mail: Nicole. Vieira @ colostate. edu Nicole.Vieira@colostate.edu Author Kondratieff, Boris C. Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, Colorado, 80523, U. S. A. E-mail: Boris. Kondratieff @ Colostate. edu Boris.Kondratieff@Colostate.edu text Illiesia 2017 13 4 50 58 journal article 6875 10.5281/zenodo.4761079 97e7f88b-b01e-499f-9074-bd73dd981043 1854-0392 4761079

Table 1. Streams sampled for adult winter stoneflies in the Big Thompson River, Cache la Poudre River, St. Vrain River, St. Charles River, Boulder Creeks, South Platte River, and Clear Creek watersheds, Colorado, USA. (X) denotes collection(s) made in each year. (a) denotes confirmed locality for Arsapnia arapahoe. Material collected in 2013 and 2014 are attributed to Heinold et al. 2014

Hydrologic unit code	Hydrologic unit code name	Stream name	2013	2014	2015	2016	2017
10190007	Cache la Poudre River	Bennett Creek	X
		Cedar Gulch		X
		Dale Creek	X
		Devil's Creek		X
		Divide Creek		X
		Elkhorn Creek	Xa	Xa	Xa	X
		Fish Creek	X
		Hewlett Gulch		X
		Little Beaver Creek	X
		Lone Pine Creek	X
		Poverty Gulch		X
		Rabbit Creek	X
		Rabbit Creek at North Fork
		Cache la Poudre River	X	X
		Rist Canyon Creek					X
		Sand Creek	X
		Sevenmile Creek	X	X		X
		Skin Gulch					X
		South Lone Pine Creek		X
		Spring Creek		X
		Trail Creek	X
		Tributary to Meadow Creek		X
		Young Gulch		X		Xa
10190006	Big Thompson	Buckhorn Creek	X				X
		Cedar Creek		X
		Cottonwood Creek		X
		Dry Creek		X
		Hell Canyon Creek				X
		Little Thompson River	X	X
		North Fork Little Thompson River				X
		Quillan Gulch		X
		Sheep Creek	Xa	X		X
		Twin Cabin Gulch				X	Xa
		Unnamed Creek		X