Ephemeroptera: Ameletidae of Gunnison County, Colorado
Ameletus validusMcDunnough 1923
Updated 17 May 2017
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ReferencesHeinold,B 2010 The mayflies (Ephemeroptera), stoneflies (Plecoptera), and caddisflies (Trichoptera) of the South Platte River Basin of Colorado, Nebraska, and Wyoming. M.S. Thesis, Colorado State University, Fort Collins, CO 375 pages. 148 distribution maps. PDF
Remarks about A. validus from pages 27-28: "Records for this more northern and western North American species (Zloty 1996) are from small streams of the Foothills of the Colorado portion of the SPRB. Adults of this fall emerging species were collected in October and November at elevations between 1760 m and 2650 m. "
Hill,WR and Knight, AW 1987 Experimental analysis of the grazing interaction between a mayfly and stream algae. Ecology (68)6:1955-1965.Abstract PDF
McCafferty,WP; Durfee,RS; Kondratieff,BC 1993 Colorado mayflies (Ephemeroptera): an annotated inventory. Southwestern Naturalist 38 (3) 252-274. PDF
Quote from page 254: "This species is known from northern California north through western Canada, and the first author has seen specimens from Idaho."
McDunnough,J 1923 New Canadian Ephemeridae with notes. Canadian Entomologist 55, 39-50.
Zloty,J 1996 A revision of nearctic Ameletus mayflies based on adult males, with descriptions of seven new species (Ephemeroptera: Ameletidae). Canadian Entomologist 128, 293-346. PDF
Zloty,J and Pritchard,G 1997 Larvae and adults of Ameletus mayflies (Ephemeroptera: Ameletidae) from Alberta. Canadian entomologist, 129(2), 251-290. PDF
Description of larvae and adults.
Zuellig,RE; Heinold,BD; Kondratieff,BC and Ruiter,DE 2012 Diversity and distribution of mayflies (Ephemeroptera), stoneflies (Plecoptera), and caddisflies (Trichoptera) of the South Platte River Basin, Colorado, Nebraska, and Wyoming, 1873-2010 (No. 606). US Geological Survey. PDF - caution 46MB
Elevation collected 5750-8700 ft, asdults were found from October-November . Remarks from page 16: "Records for this more Northern and Western North American species (Zloty, 1996) emerged in the fall from small streams in the northern foothills and lower mountainous parts of the South Platte River Basin."
Brown, WS 2004 Mayflies (Ephemeroptera) of Gunnison County, Colorado, USA