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Genus Cuerna

Leafhopper - Cuerna costalis Dilley Hoppers: Dusky adult seeks ID - Cuerna occidentalis Leaf hopper? - Cuerna costalis black planthopper? of inland barren dunes new Image 2 of 4 same Individual - Cuerna Cuerna species - Cuerna obtusa - male - female cuerna sp ? - Cuerna young hopper, striped - Cuerna costalis Subfamily_eurymelinae - Cuerna
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Auchenorrhyncha (Free-living Hemipterans)
Infraorder Cicadomorpha
Superfamily Membracoidea (Leafhoppers, Treehoppers and Aetalionids)
Family Cicadellidae (Leafhoppers)
Subfamily Cicadellinae (Sharpshooters)
Tribe Proconiini
Genus Cuerna
Explanation of Names
Cuerna Melichar, 1925
21 spp. in our area, 26 species total (1)

Species: (1)

alpina group
Cuerna alba Oman & Beamer, 1944 (AZ, NM, TX)
Cuerna alpina Oman & Beamer, 1944
Cuerna alta Oman & Beamer, 1944 (NM)
Cuerna arida Oman & Beamer, 1944
Cuerna balli Oman & Beamer, 1944 (western US, Mex.)
Cuerna curvata Oman & Beamer, 1944 (CA, NV, UT)
Cuerna emeljanovi Krishnankutty & Rakitov, 2015 (CA, NV)
Cuerna lyrifora Krishnankutty & Rakitov, 2015 (TX, Mex.)
Cuerna obesa Oman & Beamer, 1944
Cuerna obtusa Oman & Beamer, 1944 (AZ, CO, NM, UT)
Cuerna occidentalis Oman & Beamer, 1944
Cuerna stitti Nielson, 1965 (AZ)
Cuerna unica Nielson, 1965
Cuerna yuccae Oman & Beamer, 1944

costalis group
Cuerna costalis (Fabricius, 1803)

sayi group
Cuerna fenestella Hamilton, 1970
Cuerna sayi Nielson, 1965

striata group
Cuerna gladiola Oman & Beamer, 1944 (CA, OR)
Cuerna hasbroucki Nielson, 1965 (AZ, CA, OR)
Cuerna kaloostiani Nielson, 1965 (AZ)
Cuerna striata (Walker, 1851)

Extralimital species:
Cuerna krameri Nielson, 1965 (Mex./ alpina group)
Cuerna semibulba Nielson, 1965 (Mex./ alpina group)
Cuerna angusta Nielson, 1965 (Mex./ costalis group)
Cuerna mexicana Oman & Beamer, 1944 (Mex., Guat., Hond./ costalis group)
Cuerna oaxacensis Krishnankutty & Rakitov, 2015 (Mex., Costa Rica/ costalis group)
8-10 mm
common species are black and red with longitudinal stripes on the forewings
North America (AK to Panama), by far most diverse in the west (esp. sw. US)(2)
fields, meadows
hosts: mostly grasses
Life Cycle
overwinters as adult
some species are vectors of plant diseases
Print References
Hamilton, K.G.A. 1970. The genus Cuerna (Homoptera: Cicadellidae) in Canada. Canadian Entomologist 102: 425-441. (description).
Nielson, M.W. 1965. A revision of the genus Cuerna (Homoptera, Cicadellidae). Technical Bulletin of the United States Department of Agriculture 1318: 1-48. (description, hosts).
Internet References
C. costalis nymph anointing itself with liquid secretion (video)
Works Cited
1.Taxonomy and Phylogeny of the North American Leafhopper Genus Cuerna (Hemiptera: Cicadellidae)
S.M. Krishnankutty, R. Rakitov, & C.H. Dietrich. 2015. Annals of the Entomological Society of America 108 (3): 339-371.
2.Dmitriev D.A. (2003-) 3I interactive keys and taxonomic databases