Genus Picumna Stål, 1864

Genus Picumna Stål, 1864

Type species (in original combination): Picumna varians Stål, 1864.

Synonyms

• Cyclumna Fowler, 1904 (Type species Cyclumna subrotunda Fowler, 1904); syn. by Metcalf 1938: 415.
• Issomorphus Melichar, 1906 (Type species Issomorphus maculatus Melichar, 1906); syn. by Metcalf 1938: 414. .

Distribution

Southwestern US and Central America.

Recognized species

There are 10 species currently assigned to this genus (2 in the US), as follows (see Doering 1938, Metcalf 1958: 458).

Picumna chinai Doering, 1938: 473 – USA: AZ, CA, NM, TX; Mexico (Guerrero, Veracruz); Guatemala, Panama
= Picumna ovatipennis Fowler 1905: 128 (nec. Walker 1858) 
= Picumna chinai var. __ (Fowler 1905: 128); comb. by Metcalf, 1958: 460
Picumna maculata (Melichar, 1906: 293) – USA: AZ, NM, TX
= Issomorphus maculatus Melichar, 1906: 293
= Picumna maculata (Melichar, 1906); comb. by Metcalf, 1938:414.
Picumna mexicana Stål 1864: 53 – Mexico
Picumna ovatipennis (Walker, 1858)- Mexico (Guerrero, Veracruz) (reported in error: USA: AZ)
= Issus ovatipennis Walker, 1858: 88
= Picumna ovatipennis Fowler , 1905: 128 [nec Walker] see Picumna chinae Doering
Picumna procidua (Melichar 1906: 293) – Costa Rica
= Issomorphus prociduus Melichar, 1906: 293.
= Picumna procidua (Melichar 1906); comb. by Metcalf, 1958: 461.
Picumna subovata Caldwell 1945: 119 – Mexico (Guerrero, Morelos)
Picumna subrotundata (Fowler 1904: 116) – Mexico (Guerrero, Michoacán, Morelos), Panama
= Cyclumna subrotundata Fowler, 1904: 116.
= Picumna subrotundata (Fowler 1904); comb. by Metcalf, 1938: 415.
Picumna testacea Metcalf 1938:415 – Panama
Picumna varians Stål 1864: 52 – Mexico (Tabasco, Veracruz), Panama, Guatemala
= Picumna varians var. a; var. b Stal 1864:52 – Mexico
Picumna venosa Fowler 1905:128 – Mexico (Guerrero, Morelos)

Economic Importance

Limited.

Plant associations

• Picumna maculata – Pinus sp. (Pine, Pinaceae)

Hosts from Wilson et al. 1994; plant names from USDA PLANTS or Tropicos.

Recognition

Hind wings well-developed (evident by peering beneath the forewings in ventral view), bearing large notch in hindwing at claval fold, body stout (broader than Thionia), hind tibiae with 4 lateral spines (fewer in Thionia)

Key to species North of Mexico (modified from Doering 1938).

1 – Dark brown, mottled with yellow; costal margins of tegmina as viewed from above not parallel, somewhat expanded at base so that greatest width of tegmen is in line with apex of scutellum … Picumna chinai Doering

1’ – Dark brown, mottled with yellow; costal margins parallel or slightly rounding, not expanded at base, greatest width of tegmina through middle … Picumna maculata (Melichar)

Picumna chinai from Cochise Co., AZ

Picumna maculata from Barcode of Life (cnc#hem406087+1345045600)

Picumna from Doering 1938

Picumna from Doering 1938

Online resources
Bugguide.
iNaturalist.
Picumna from EOL

Collecting

Adults are taken beating woody vegetation.

Molecular resources

There are no data for this genus on Genbank; Barcode of Life has data for 3 taxa (Picumna chinai, P. maculata and P. sp.).

Selected references

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.

Fowler, W.W. 1904. Order Rhynchota. Suborder Hemiptera-Homoptera. (Continued). Biologia Centrali-Americana; contributions to the knowledge of the fauna and flora of Mexico and Central America 1: 85-124, 125-139.

Gnezdilov, V.M. 2009. Revisionary notes on some tropical Issidae and Nogodinidae (Hemiptera: Fulgoroidea). Acta Entomologica Musei Nationalis Pragae 49(1): 75-92.

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.

Melichar, L. 1906. Monographie der Issiden. (Homoptera). Abhandlungen der Kaiserlich-Königliche Zoologisch-Botanischen Gesellschaft in Wien 3: 1-327.

Metcalf, Z.P. 1938. The Fulgorina of Barro Colorado and other parts of Panama. Bulletin of the Museum of Comparative Zoology, Harvard Coll. 82: 277-423. [available from http://www.biodiversitylibrary.org]

Metcalf, Z.P. 1958. General Catalogue of the Homoptera. Fascicle IV, Fulgoroidea, Part 15, Issidae. Waverly Press, Inc., Baltimore, Maryland.

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.

Stål, C. 1864. Hemiptera mexicana enumeravit speciesque novas descripsit. (Continuatio). Entomologische Zeitung. Herausgegeben von dem entomologischen Vereine zu Stettin. Stettin 25: 49-86.

Walker. F. 1858. Supplement. List of the specimens of Homopterous insects in the collection of the British Museum. 307 pp.

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.