Family Delphacidae

Subfamily Delphacinae

Tribe Delphacini

 

Type species (in original combination): Eurybregma nigrolineata Scott, 1875

Distribution: Holarctic.

Recognized species (distribution information may be incomplete)

Note Emeljanov, 1988 divides this genus into the subgenera Bregmodes Emeljanov, 1988; Priapyx Emeljanov, 1988, and Eurybregma.

Hamilton (2002) moved most of the North American species formerly in Eurysa into Eurybregma.

New World

Eurybregma eurytion Hamilton 2002 - USA: Idaho

Eurybregma magnifrons Crawford, 1914) - USA: Alaska, California, Colorado, Montana, Wyoming; Canada: Alberta, British Columbia

Eurybregma montana (Beamer, 1952) - USA: Wyoming

Eurybregma obesa (Beamer, 1952) - USA: Wyoming, Oregon, Utah, Nevada, Washington, Canada: British Columbia

Old World

Eurybregma bielawskii Nast, 1977 - Bulgaria
Eurybregma dlabolai Kalkandelen, 1980 - Turkey
Eurybregma nigrolineata Scott, 1875 - Widespread in Europe, Russia, Mongolia  (Link is io photo by Gernot Kunz)
Eurybregma porcus (Emeljanov, 1964) Mongolia, Kazakhstan
Eurybregma pseudagropyri Emeljanov, 1966 - Russia
Eurybregma pygalis Emeljanov, 1973 - Mongolia
Eurybregma sparsa Logvinenko, 1970 - Azerbaijan
Eurybregma striifrons Logvinenko, 1972 - Azerbaijan

Reported Hosts:

Eurybregma nigrolineata is reported off the grasses Elymus repens, Holcus lanatus, and Dactylis glomerata.

Eurybregma pseudagropyri is reported from the grass Agropyron pseudoagropyrum.

 

Economic Importance: Probably limited.  Most of the New World species are infrequently encountered.

Recognition

New World

Eurybregma magnifrons

Eurybregma montana

 

Old World

Eurybregma nigrolineata

Eurybregma bielawskii

From Drosopolos et al 1983.

Molecular resources

At this time, neither Genbank or Bold have any molecular resources for this genus. Eurybregma magnifrons and Eurybregma nigrolineata was sequenced for 18S, 28S, CO1, WG in Urban et al. (2010).

 

Selected References

Beamer, R.H. 1952. The genus Eurysa in America North of Mexico. Pan-Pacific Entomologist 28: 51-55.

Drosopoulos, S., M. Asche, and H. Hoch. 1983. Contribution to the planthopper fauna of Greece. Homoptera, Auchenorrhyncha, Fulgoromorpha, Delphacidae). Annales de l’Institut Phytopathologique Benaki (N.S.) 14: 19-68.

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.

Qin, D.Z., X.D. Chen, and Q.L. Men. 2009. A new record species of the genus Megadelphax Wagner and redescription of Eurybregma nigrolineata Scott (Hemiptera, Fulgoroidea, Delphacidae) from China. Acta Zootaxonomica Sinica 34: 654-658.