Genus Yukonodelphax Wilson, 1992

Type species: Yukonodelphax kendallae Wilson, 1992: 93.

Distribution

The United States and Canada, especially north.

Recognized species

Three species were recognized in this genus by Wilson 1992, 1997, but one [Yukonodelphax pediforma (Beamer, 1947)] subsequently moved to Elachodelphax by Hamilton (2002: 17).  Yukonodelphax bifurca was added by Bartlett et al. (2014).

Yukonodelphax bifurca (Beamer, 1946) – USA: DE, FL, KS, MO, NC, PA, TN, VA.
= Delphacodes bifurca Beamer, 1946: 143.
= Yukonodelphax bifurca (Beamer, 1946); comb. by Bartlett et al. 2014: 148

Yukonodelphax kendallae Wilson, 1992: 93 – Canada: Alberta, Yukon.

Yukonodelphax stramineosa (Beamer, 1948) – USA: CT, NY; CAN: QC
= Delphacodes stramineosa Beamer, 1948a: 5-6.
= Yukonodelphax stramineosa (Beamer, 1948a); comb. by Wilson 1992: 92.

Plant associations

None.

None in Wilson et al. 1994, Wilson 1992, or (at this time, 5 Aug. 2018) FLOW.

Economic Importance

Limited.

Recognition

Keys to the genus are found in Wilson (1992) and Bartlett et al. (2014).

Pale species, sometimes with a few markings.  Uncommon, mostly northern, with most individuals brachypterous. Terminalia with prominent, widely separated processes on segment X (anal tube) and strongly projecting armature of the diaphragm.

Yukonodelphax bifurca (Photos by Kimberley Shropshire, Department of Entomology & Wildlife Ecology, University of Delaware)

Yukonodelphax stramineosa – male

Yukonodelphax stramineosa – female (Beamer paratype)

Yukonodelphax stramineosa from Beamer 1948 (as Delphacodes)

Yukonodelphax kendallae from Wilson 1982

Online resources

EOL.
FLOW.
Discover Life.
Bugguide.
GBIF.
3I Interactive Keys and Taxonomic Databases (Dmitry Dmitriev)
Les Hemipteres du Quebec (Y. stramineosa listed)
Hoppers of North Carolina.
Kunzweb Gallery.
American Insects.
BOLD.

Molecular resources

At this time (April 2014 29 July 2021), Genbank has no molecular data for this genus. Bold has data for Yukonodelphax kendallae.

Selected references

Barringer, L. E. and C. R. Bartlett. 2018. Pennsylvania planthoppers (Hemiptera: Auchenorrhyncha: Fulgoroidea): relative abundance and incidental catch using novel trapping methods. Insecta Mundi 0661: 1–31.

Bartlett, C. R., L. B. O’Brien and S. W. Wilson. 2014. A review of the planthoppers (Hemiptera: Fulgoroidea) of the United States. Memoirs of the American Entomological Society 50: 1-287.

Beamer, R. H. 1946. Some new species of Delphacodes (Homoptera, Fulgoridae, Delphacinae). Journal of the Kansas Entomological Society 19: 139-144 [143].

Beamer, R. H. 1947. Some new species of Delphacodes (continued) with two old ones (Homoptera: Fulgoridae). Journal of the Kansas Entomological Society 20(2): 58-71 [70].

Beamer, R. H. 1948. Some new species of Delphacodes (continued) part III. Journal of the Kansas Entomological Society 21(1): 1-10.

Hamilton, K.G.A. 2002. Homoptera (Insecta) in Pacific Northwest grasslands. Part 1 – New and revised taxa of leafhoppers and planthoppers (Cicadellidae and Delphacidae). Journal of the Entomological Society of British Columbia 99: 3-31.

Leach, W. E. 1815a. Entomology. The Edinburg encyclopedia; conducted by David Brewster 9: 57-172. (family Delphacidae on p. 125)

Wilson, S. W. 1992. The Delphacidae of Yukon Territory, Canada (Homoptera: Fulgoroidea). Insecta Mundi 6(2): 79-100.

Wilson, S. W. 1997. Delphacid planthoppers (Homoptera: Fulgoroidea: Delphacidae) of the Yukon. Pp. 377-385. In: H. V. Danks and J. A. Downes, (eds.). Biological Survey of Canada (Terrestrial Arthropods), Ottawa, Canada.

Wilson, S. W., C. Mitter, R. F. Denno and M. R. Wilson. 1994. Evolutionary patterns of host plant use by delphacid planthoppers and their relatives. Pp. 7-45 & Appendix. In: R. F. Denno and T. J. Perfect, (eds.). Planthoppers: Their Ecology and Management. Chapman and Hall, New York.