[Return to North American Issidae]
Family Issidae Spinola, 1839
Subfamily incertae sedis
[Higher taxonomy revised by Wang et al. 2016; formerly placed in Issinae, Issini, subtribe Hysteropterina; see also Gnezdilov 2016]
Genus Kathleenum Gnezdilov, 2004
Type species (in original combination): Hysteropterum cornutum Melichar, 1906.
Synonyms
None.
Distribution
The Southwestern United States and Mexico.
Recognized species
There are two species currently assigned to this genus, one of which is divided into subspecies.
Kathleenum cornutum (Melichar, 1906) – USA: AZ, CA, CO, ID, NM, NV, TX, UT; Mexico (Baja California)
= Hysteropterum cornutum Melichar, 1906: 147.
= Hysteropterum cornutum var. cornutum Melichar, 1906; status by Ball, 1935a: 38.
= Kathleenum cornutum (Melichar, 1906); comb. Gnezdilov, 2004: 2.
= Kathleenum cornutum var. utahnum (Ball, 1935a) – USA: AZ, CA, CO, NM, TX, UT = Hysteropterum cornutum var. utahnum Ball, 1935a: 38.
= Kathleenum cornutum var. utahnum Ball, 1935a; comb. by Gnezdilov, 2004: 2.
Kathleenum sepulchrale (Ball, 1935a) -USA: AZ, NM, TX, WY; Mexico (Coahuila, Hidalgo)
= Hysteropterum sepulchralis Ball, 1935a: 37.
= Kathleenum sepulchralis (Ball, 1935a); comb. by Gnezdilov, 2004: 2.
= Kathleenum sepulchrale (Ball, 1935a); emendation by Gnezdilov & O’Brien, 2006b: 220, 224.
Economic Importance
Limited.
Plant associations
- Kathleenum cornutum cornutum – Artemisia tridentata Nutt. (big sagebrush, Asteraceae)
- Kathleenum cornutum utahnum – Artemisia cana Pursh (silver sagebrush)
- Kathleenum sepulchrale – Flourensia cernua DC. (American tarwort, Asteraceae)
Hosts from Wilson et al. 1994; plant names from USDA PLANTS or Tropicos.
Recognition
Hind wings absent or rudimentary, Body elongate (not rounded in dorsal view, vs Paralixes & Traxus), wings not strongly reticulate; Intermediate carinae of the front present, raised; smaller species usually 4.4 mm or less; vertex not as deeply emarginate as Tylanira; intermediate carinae of frons converging dorsally; intermediate carinae of frons parallel or weakly converging dorsally; frons at dorsal margin wider than tall at median carina; dorsal margin of frons wider than frons at the midline (about 1.25x) with wide straight median line and sides angled upward; vertex about 3x wider than long in the middle
Apparently, this genus is common.
Online resources
Bugguide.
FLOW.
iNaturalist.
EOL.
GBIF.
BOLD.
GenBank. (not listed)
3i.
Collecting
Adults are taken by sweeping or beating.
Molecular resources
There is data for Kathleenum on Barcode of Life; there does not appear to be any data for this genus on Genbank.
Selected references
Ball, E. D. 1935. Some new Issidae with notes on others (Homoptera: Fulgoridae). Bulletin of the Brooklyn Entomological Society 30: 37-41.
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.
Caldwell, J. S. 1945. Notes on Issidae from Mexico (Homoptera: Fulgoroidea). Annals of the Entomological Society of America 38: 89-120.
Doering. K. C. 1938. A contribution to the taxonomy of the subfamily Issinae in America north of Mexico (Fulgoroidea: Homoptera. Part II. University of Kansas Science Bulletin 25(20): 447-575.
Gnezdilov, V. M. 2004. Two new genera of the family Issidae (Homoptera: Cicadina: Fulgoroidea) from North America. Russian Entomological Journal 13(1–2): 1–2.
Gnezdilov, V. M. 2016. Notes on the phylogenetic relationships of planthoppers of the family Issidae (Hemiptera, Fulgoroidea) of the Western Palaearctic fauna, with descriptions of two new genera. Entomologicheskoe Obozrenie 95(2): 362-382.
Gnezdilov, V. M. and L. B. O’Brien. 2006. Generic changes in United States Issini (Hemiptera, Fulgoroidea, Issidae). Insecta Mundi 20(3-4): 217-225.
Melichar, L. 1906a. Monographie der Issiden. (Homoptera). Abhandlungen der Kaiserlich-Königliche Zoologisch-Botanischen Gesellschaft in Wien 3: 1-327.
Metcalf, Z. P. 1958. General Catalogue of the Homoptera. Fascicle IV, Fulgoroidea, Part 15, Issidae. Waverly Press, Inc., Baltimore, Maryland.
O’Brien, L. B. 1988. Taxonomic changes in North American Issidae (Homoptera: Fulgoroidea). Annals of the Entomological Society of America 81(6): 865-869.
Spinola, M. 1839a. Essai sur les Fulgorelles, sous-tribu de la tribu des Cicadaires, ordre des Rhyngotes. Annales de la Société Entomologique de France 8: 133-337.
Spinola, M. 1839b. Essai sur les Fulgorelles, sous-tribu de la tribu des Cicadaires, ordre des Rhyngotes. (Suite). Annales de la Société Entomologique de France 8: 339-454.
Wang, M. L., Y. L. Zhang and T. Bourgoin. 2016. Planthopper family Issidae (Insecta: Hemiptera: Fulgoromorpha): Linking molecular phylogeny with classification. Molecular Phylogenetics and Evolution 105:224-234.
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. In: R. F. Denno and T. J. Perfect, (eds.). Planthoppers: Their Ecology and Management. Chapman and Hall, New York. Pp. 7-45 & Appendix.