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April 23, 2016

Okanagana occidentalis (Walker in Lord, 1866)

Filed under: Okanagana | Tibicinini | United States | William T. Davis — Tags: — Dan @ 6:19 pm

Name, Location and Description

From Davis’ key to Okanagana1:

A. Male uncus not hooked at extremity, sometimes sinuate.

B. Expanse of fore wings more than 50 mm.

C. Base of fore and hind wings orange red more or less variegated with black.

DD. Outer edge of front wing of a more continuous curve. Medium sized species, except schaefferi, which is large.

EE. Legs, especially the front pair considerably blackened.

F. Shining species with rather broad wings, and the hind margin of pronotum orange or reddish.

Venation of the fore wings fuscous, except the costal margin, which is often narrowly edged with black, but otherwise greenish-orange to the end of the radial cell; subcostal vein black. Basal cell clear or nearly so. Pronotum edged on hind margin and at posterior angles and sometimes narrowly on sides with greenish-orange. Head small rather blunt in front, and proportionately broader than in the next species, very hairy on the dorsal surface and with a considerable amount of rather long hairs behind the eyes; beneath thickly clothed with whitish hairs. The last ventral segment of the female doubly notched. Expands about 60 mm.

Similar to: Okanagana schaefferi Davis, 1915, Okanagana rimosa rimosa (Say, 1830) aka Say’s Cicada, Okanagana canadensis (Provancher, 1889) aka Canadian Cicada, Okanagana tristis tristis Van Duzee, 1915 and Okanagana bella Davis, 1919 aka Mountain Cicada.

Classification:

Family: Cicadidae
Subfamily: Cicadettinae
Tribe: Tibicinini
Subtribe: Tibicinina
Genera: Okanagana
Species: Okanagana occidentalis (Walker in Lord, 1866)

List of sources

  1. Davis, William T. Cicadas of the genera Okanagana, Tibicinoides and Okanagodes, with descriptions of several new species. Journal of the New York Entomological Society. v27. 179-223. 1919. Link.
  2. Full Binomial Names: ITIS.gov
  3. Common names: BugGuide.net; The Songs of Insects by Lang Elliott and Wil Herschberger; personal memory.
  4. Locations: Biogeography of the Cicadas (Hemiptera: Cicadidae) of North America, North of Mexico by Allen F. Sanborn and Polly K. Phillips.
  5. Descriptions, Colors: personal observations from specimens or photos from many sources. Descriptions are not perfect, but may be helpful.

Notes:

  • Some descriptions are based on aged specimens which have lost some or a lot of their color.