Common NameSay's CicadaSeasonalityAdults emerge from June to July (Strickland 1953).IdentificationA moderate-sized, predominantly black cicada with yellowish-orange markings. The relatively narrow forewings (width:length 0.29 - 0.31) will segregate rimosa from O. bella and O. occidentalis. Very similar to O. canadensis; to reliably separate specimens of rimosa from canadensis the structure of the tymbal must be examined, which has 7 to 8 (rarely 9) ribs in rimosa and 10 to 11 ribs in canadensis (Alexander et al. 1972). In Michigan, rimosa is marked with a brighter orange compared to the tan markings of canadensis, but it is not clear if this trait holds up for Alberta populations since museum material is limited. There are likely habitat and song differences as well, but this data is also lacking for Alberta populations.
Scientific NameOkanagana rimosaCommon Name
Say's Cicada
Habitat
Dry deciduous and mixedwood forest.
Seasonality
Adults emerge from June to July (Strickland 1953).
Identification
A moderate-sized, predominantly black cicada with yellowish-orange markings. The relatively narrow forewings (width:length 0.29 - 0.31) will segregate rimosa from O. bella and O. occidentalis. Very similar to O.…
A moderate-sized, predominantly black cicada with yellowish-orange markings. The relatively narrow forewings (width:length 0.29 - 0.31) will segregate rimosa from O. bella and O. occidentalis. Very similar to O. canadensis; to reliably separate specimens of rimosa from canadensis the structure of the tymbal must be examined, which has 7 to 8 (rarely 9) ribs in rimosa and 10 to 11 ribs in canadensis (Alexander et al. 1972). In Michigan, rimosa is marked with a brighter orange compared to the tan markings of canadensis, but it is not clear if this trait holds up for Alberta populations since museum material is limited. There are likely habitat and song differences as well, but this data is also lacking for Alberta populations.
Life History
Duration of immature stages unknown, but undoubtedly several years as in other species of the genus. Males perch in various types of vegetation to sing, often among trees greater than three metres above ground. Males…
Duration of immature stages unknown, but undoubtedly several years as in other species of the genus. Males perch in various types of vegetation to sing, often among trees greater than three metres above ground. Males emit an alarm sound when handled or harassed (Cooley 2001). Females can acoustically locate calling males during flight, and approach males by walking or shorter flights once visual contact has been made (Stölting et al. 2002). Parasitoid flies are known to exploit the singing behaviour of males to locate potential host cicadas on which to deposit larvae (Lakes et al. 2000, Koehler & Lakes 2001). A song portion of O. rimosa in Michigan can be found at:
http://insects.ummz.lsa.umich.edu/fauna/Michigan_Cicadas/Michigan/Index.html
Conservation
No obvious concerns.
Diet Info
Adults feed on plant fluids including those of maple (Acer sp.) (Cooley 2001). Adults are associated with aspen (Populus tremuloides) stands in Ontario (Davis 1930).
Range
Recorded from central to southern Alberta (Strickalnd 1953). Occurs from Alberta east to New Brunswick and Nova Scotia, south through Minnesota, Vermont, New Hampshire, Mississippi, New York, Pennsylvania, Ohio,…
Recorded from central to southern Alberta (Strickalnd 1953). Occurs from Alberta east to New Brunswick and Nova Scotia, south through Minnesota, Vermont, New Hampshire, Mississippi, New York, Pennsylvania, Ohio, Virginia, Michigan, Wisconsin, Illinois, Indiana, Iowa to North Carolina and Tennessee. In the west, ranges south through Montana, North Dakota, South Dakota, Nebraska, Nevada, Wyoming, Utah, Washington, Oregon to California (Simons 1954, Maw et al. 2000, Brown & Brown 1990).
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Citation
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Page Citation for Okanagana rimosa
Page Citation
"Species Details - Okanagana rimosa, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4219. Accessed 25 Apr. 2024.
Authorship
NameSchmidt, B. C.
Rolespecies page author
Date2003
References
AuthorStrickland, E. H.
TitleAn annotated list of the Hemiptera (s.l.) of Alberta
Publication Date1953
Series TitleThe Canadian Entomologist
Volume85
Pages193-214
AuthorKoehler, U.;Lakes, R. H.
TitleAuditory behaviour of a parasitoid fly (Emblemasoma auditrix, Sarcophagidae, Diptera).
Publication Date2001
Series TitleJournal of Comparative Physiology. A
Volume187
Pages581-587
AuthorMaw, H. E. L., Footit, R. G., Hamilton, K. G. A. and Scudder, G. G. E.
TitleChecklist of the Hemiptera of Canada and Alaska
Publication Date2000
Pages220 p.
AuthorCooley, J., D. Marshall, and M. O'Brien.
TitleCicadas of Michigan.
Publication Date2000
AuthorCooley, J.
TitleLong-range acoustical signals, phonotaxis, and risk in the sexual pair-forming behaviors of Okanagana canadensis and O. rimosa (Hemiptera: Cicadidae).
Publication Date2001
Series TitleAnnals of the Entomological Society of America
Volume94
Pages755-760
AuthorBrown, E. E.;Brown, J. D.
TitleOccurrence of a northern cicada (Okanagana rimosa: Homoptera: Cicadidae) in the southern Appalachians.
Publication Date1990
Series TitleBrimleyana
Volume16
Pages5-7
AuthorLakes, R. H.;Stoelting, H.;Moore, T.
TitlePhonotactic behaviour of a parasitoid fly (Emblemasoma auditrix, Diptera, Sarcophagidae) in response to the calling song of its host Cicada (Okanagana rimosa, Homoptera, Cicadidae).
Publication Date2000
Series TitleZoology (Jena)
Volume103
Pages31-39
AuthorStoelting, H.;Moore, E. T.;Lakes, R. H.
TitleSubstrate vibrations during acoustic signalling in the cicada Okanagana rimosa.
Publication Date2002
Series TitleJournal of Insect Science
Volume2
Pages1-7
AuthorSimons, J. H.
TitleThe Cicadas of California.
Publication Date1954
Series TitleBulletin of the California Insect Survey
Volume2
Pages192
AuthorDavis, W. T.
TitleThe distribution of cicadas in the United States with descriptions of new species.
Publication Date1930
Series TitleJournal of the New York Entomological Society
Volume38
Pages53-72
Specimen Information
There are 6 specimens of this Species.
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6 results plotted on map in 1 marker. Note: Only records with latitude and longitude coordinates are plotted on map.