Ephemeroptera: Ephemerellidae of Gunnison County, ColoradoEphemerella tibialis
Spiny Crawler Mayfly, Small Western Dark HendricksonMcDunnough 1924
Updated Twosday 2/22/2022 :-)
TSN 101401
Description
Nymphs are 3-tailed with a white stripe running the length of the head, thorax and body. Their tails have whorls of dark spines on the apex of each segment, with few setae in between. As a result, their tails look striped. The back or posterior edge of each abdominal segment has a pair of small tubercles. Previously named Serratella tibialis.
Locations Collected
Myers Gulch, West Elk Creek, Red Creek, Gunnison River (Argyle and Edmunds 1962), Elk Creek
Good Links
On this website:
Ephemerellidae Introduction
Other Websites:
References
Allen,RK and Edmunds,GF Jr. 1963 A revision of the genus Ephemerella (Ephemeroptera: Ephemerellidae). VI. The subgenus Serratella in North America. Annals of the Entomological Society of America 56:583-600. PDF
Argyle,DW and Edmunds,GF 1962 Mayflies (Ephemeroptera) of the Curecanti Reservoir Basins Gunnison River, Colorado. University of Utah Anthropological Papers 59 8, 178-189.
Quote from page 188: "This species is recorded from 3 streams. The greatest concentration of them was found in a torrential habitat in association with a large amount of algae in the rocks." There were 4 streams named as collection sites in spite of the assertion that this species was present in three.
Cain,DJ; Luoma,SN and Wallace,WG 2004 Linking metal bioaccumulation of aquatic insects to their distribution patterns in a mining-impacted river. Environmental Toxicology and Chemistry 23, 1463-1473.
Jacobus,LM and McCafferty,WP 2003 Revisionary contributions to North American Ephemerella and Serratella (Ephemeroptera: Ephemerellidae). Journal of the New York Entomological Society 111:174-193. PDF
Abstract: "The study of population variability and the reexamination of type material of certain Ephemerellidae species has revealed changes in status and new synonyms. Ephemerella dorothea Needham, 1908 [=E. infrequens McDunnough, 1924, new synonym, =E. mollitia Seemann, 1927, new synonym] is divided into two subspecies: E. d. dorothea, new status, and E. d. infrequens new status [=E. mollitia, new synonym]. New synonyms were discovered for the following: Ephemerella excrucians Walsh, 1862 [=E. inermis Eaton, 1884, new synonym, =E. argo Burks, 1947, new synonym, =E. crenula Allen and Edmunds, 1965, new synonym, =E. lacustris Allen and Edmunds, 1965, new synonym, =E. rossi Allen and Edmunds, 1965, new synonym, =E. rama Allen, 1968, new synonym], E. invaria Walker, 1853 [=E. rotunda Morgan, 1911, new synonym, =E. vernalis Banks, 1914, new synonym, =E. feminina Needham, 1924, new synonym, =E. fratercula McDunnough, 1925, new synonym, =E. inconstans Traver, 1932, new synonym, =E. choctawhatchee Berner, 1946, new synonym, =E. simila Allen and Edmunds, 1965, new synonym, =E. floripara McCafferty, 1985, new synonym], E. mucronata (Bengtsson), 1909 [=E. moffatae Allen, 1977, new synonym], Serratella micheneri (Traver), 1934 [=E. altana Allen, 1968, new synonym], S. serrata (Morgan), 1911 [=S. sordida (McDunnough), 1925, new synonym, =S. carolina (Berner and Allen), 1961, new synonym, =S. spiculosa (Berner and Allen), 1961, new synonym], and S. tibialis."
McCafferty,WP; Durfee,RS and Kondratieff,BC 1993 Colorado mayflies (Ephemeroptera): an annotated inventory. Southwestern Naturalist 38 3, 252-274. PDF
Quote from page 266: "All reports prior to 1990 have been as Ephemerella tibialis. This species is found throughout the West at almost all elevations in cool, moderately flowing waters."
McCafferty,WP and Provonsha, AV The Mayflies of North America Species List (Version 8Feb2011)
Here is the geographic range and synonyms:Ephemerella tibialis McDunnough, 1924 [CAN:FN,NW;USA:FN,NW,SW]
* Ephemerella angusta Traver, 1934 (syn.)
* Ephemerella angustata Traver, 1934 (spell. syn.)
* Ephemerella sequoia Allen & Collins, 1968 (syn.)
* Serratella sequoia (Allen & Collins), 1968 (syn.)
* Serratella tibialis (McDunnough), 1924 (comb.)
McDunnough,J 1924 New Canadian Ephemeridae with notes, II. Canadian Entomologist 56, 90-98, 113-122, 128-133.
NAWQA National Water-Quality Assessment database said this genus was found in their samples from Gunnison County. Searched 1Sept2005.
Peckarsky,BL; Dodson,SI; Conklin,DJ 1985 A key to the aquatic insects of streams in the vicinity of the Rocky Mountain Biological Lab, including chironomid larvae from streams and ponds. Colorado Division of Wildlife, Denver CO. 47 pages.
Perry SA; Perry WB; Stanford JA. 1986. Effects of stream regulation on density, growth, and emergence of two mayflies (Ephemeroptera: Ephemerellidae) and a caddisfly (Trichoptera: Hydropsychidae) in two Rocky Mountain rivers (U.S.A.). Canadian Journal of Zoology 64(3):656-666.
Walley,GS 1930. Review of Ephemerella nymphs of western North America (Ephemeroptera). Canadian Entomologist 62(1):12-20, pl. 2-3. PDF
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.U.S. Geological Survey Data Series 606, 257 p. PDF - caution 46MB
Quote from page 28: "Remarks: A widespread, common species that occurs in both small and large streams across Western North America (McCafferty and others, 1993). Previously published records of this species were listed as Serratella tibialis until Jacobus and McCafferty (2008) revised the Ephemerellidae genera, providing the combination E. tibialis." Elevation collected 5,800-9,400 ft. Adults were found June-July.
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