Ephemeroptera: Ameletidae of Gunnison County, Colorado
Ameletus veloxDodds 1923
Updated 20 Jun 2020
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ReferencesAllan, JD 1975a The distributional ecology and diversity of benthic insects in Cement Creek, Colorado. Ecology 56:1040-1053. PDF
Allan,JD 1981 Determinants of diet of brook trout (Salvelinus fontinalis) in a mountain stream. Canadian Journal of Fisheries and Aquatic Sciences 38, 184-192. PDF
Allen,RK; Chao,ESM 1981 Mayflies of the Southwest: new records and notes of Siphlonuridae (Ephemeroptera: Baetidae). Pan-Pacific Entomologist (57) 449-456. PDF
Detmer, T.M., McCutchan Jr, J.H. and Lewis Jr, W.M., 2017 Predator driven changes in prey size distribution stabilize secondary production in lacustrine food webs. Limnology and Oceanography, 62(2)592-605. PDF
In lakes without fish, A. velox individuals weighed an average of 4.86 ± 0.51mg. In lakes with a fish population Ameletus velox was absent.
Dodds,GS 1923 Mayflies from Colorado: descriptions of certain species and notes on others. Transactions of American Entomological Society 69, 93-116. PDF
Dodds first described A. velox in this paper. Quote from page 106: " Common in South Boulder Creek and its tributaries where the water is not very swift, between 5,500 and 11,000 feet. It also lives in lakes and ponds with clean bottoms. It is a very strong swimmer, being found in swifter waters than any other swimming form of this region."
Dodds,GS and Hisaw,FL 1924 Ecological studies of aquatic insects: size of respiratory organs in relation to environmental conditions. Ecology, 5(3), pp.262-271.
Dodds,GS; Hisaw,FL 1925 Ecological studies on aquatic insects. IV. Altitudinal range and zonation of mayflies, stoneflies and caddisflies in the Colorado Rockies. Ecology 6(4)380-390. Abstract PDF
Encalada,AC and Peckarsky,BL 2007 A comparative study of the costs of alternative mayfly oviposition behaviors. Behavioral Ecology and Sociobiology, 61(9), 1437-1448. PDF
Heinold,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. velox from page 28: " One of several species of mayflies described by Dodds (1923) in his study of upper South Boulder Creek in Boulder and Gilpin Counties. All SPRB records of this species are from the Boulder Creek basin in Colorado. Specimens were collected from 1631 m to 2809 m in elevation. Adults were present from June to July. "
McCafferty,WP; Durfee,RS; Kondratieff,BC 1993 Colorado mayflies (Ephemeroptera): an annotated inventory. Southwestern Naturalist 38 3, 252-274. PDF
The Colorado State University Reference Collection (CSU) has specimens from Allan's 1975 study of Cement Creek in Gunnison County. Quote from page 254: "The species is evidently widespread throughout the west, and Allen and Chao (1981) redescribed the larvae from Arizona."
Peckarsky,BL 1980 Influence of detritus on colonization of stream invertebrates. Canadian Journal of Fisheries and Aquatic Sciences 37, 957-963.
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,JS 1998 Systematics of nearctic Ameletus mayflies (Ephemeroptera: Ameletidae). PhD Thesis University of Calgary.
Abstract: "A systematic revision of North American species of the genus Ameletus, excluding parthenogenetic species, is presented. Seven new species are described (A. andersoni, A. bellulus, A. doddsianus, A. edmundsi, A. majusculus, A. pritchardi, and A. tolae), separate keys are given to western and eastern species, annotated accounts of all 30 presently recognized bisexual species are provided, taxonomic characters are illustrated, and distribution data are presented for all species. The following nomenclatural changes are proposed: Ameletus aequivocus is considered a junior synonym of A. sparsatus; A. alticolus and A. celeroides junior synonyms of A. celer; A. connectina and A. connectus junior synonyms of A. velox; A. facilis a junior synonym of A. vancouverensis; A. monta a junior synonym of A. similior; A. querulus a junior synonym of A. shepherdi; A. tuberculatus is provisionally considered to be a junior synonym of A. celer..."
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 5400-9200 ft, adults were found in July. Remarks from page 17: "One of several species of mayflies described by Dodds (1923) in his study of upper South Boulder Creek in Boulder and Gilpin Counties. All South Platte River Basin records of this species are from the Boulder Creek Basin in Colorado. "
Brown, WS 2004 Mayflies (Ephemeroptera) of Gunnison County, Colorado, USA