Genus Thiscia Stal, 1862

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Family Acanaloniidae Amyot & Serville, 1843

Subfamily Acanaloniinae Amyot & Serville, 1843

Tribe Acanaloniini Amyot & Serville, 1843

Genus Thiscia Stål, 1862: 10.

This genus was transferred to Fulgoroidea incertae sedis by Gnezdilov 2012, retained here in Acanaloniidae until it is formally placed in a family.

Type species: Thiscia semicircularis Stål, 1862: 11.

Synonyms:   None.

Distribution: Brazil

Recognized species

There are 4 species in this genus as follows:

Thiscia jaraguensis Schmidt, 1932: 46 – Brazil (Santa Caterina)
Thiscia melichari Schmidt, 1932: 49 – Brazil (Rio de Janeiro)
Thiscia ohausi Schmidt, 1932: 48 – Brazil (São Paulo)
Thiscia semicircularis Stål, 1862: 11- Brazil (Rio de Janeiro)

Distribution primarily from Metcalf (1954)

Economic Importance: Limited; species are rarely encountered.

Known host plants:

No hosts recorded.

Even on FLOW.


Features from Melichar 1901 (extracted from key to genera)

Vertex strongly ‘bent forward’, 2-4x as long as wide between eyes, the edges carinate; Vertex bluntly lanceolate. Forewing half circle shaped; Vertex flat above. Genae projected in acute angle. Frons smooth and glossy. Pronotum short.

Thiscia sp.

Thiscia sp. (species undetermined, from Rio de Janerio, Brazil)


Thiscia sp.

Thiscia sp. (photo by André L. D. Ferreira, used by permission, Laboratório de Entomologia, Departamento de Zoologia, Universidade Federal do Rio de Janeiro), taken near Rio de Janeiro, Brazil.)


Thiscia semicircularis

Thiscia semicircularis (type specimens from


Molecular resources: none (as of 21 April 2016)

Internet Resources
3i Interactive Keys and Taxonomic databases.

Selected references:

Amyot, C. J. B. and J. G. Serville. 1843. Deuxième partie. Homoptères. Homoptera Latr. Histoire Naturelle des insectes. Hemiptères 1843: 1-676.

Emeljanov, A. F. 1999. Notes on delimitation of families of the Issidae group with description of a new species of Caliscelidae belonging to a new genus and tribe (Homoptera, Fulgoroidea). Zoosystematica Rossica 8(1): 61-72.

Fennah, R. G. 1954. The higher classification of the family Issidae (Homoptera: Fulgoroidea) with descriptions of new species. Transactions of the Royal Entomological Society of London 105: 455-474.

Gnezdilov, V. M. 2012. On the composition and distribution of the family Acanaloniidae Amyot et Serville (Homoptera, Fulgoroidea). Entomologicheskoe obozrenie 91(3): 643-647.  [In Russian, English translation Entomological Review 93(1): 69-72].

Melichar, L. 1901. Monographie der Acanaloniiden und Flatiden (Homoptera). Annalen des k.k Naturhistorischen Hofmuseums 16: 178-258.

Metcalf, Z. P. 1954. General Catalogue of the Hemiptera. Fascicle IV, Fulgoroidea, Part 14 Acanaloniidae. North Carolina State University, Raleigh, North Carolina.

Schmidt, E. 1932c. Neuen und bekannte Zikadengattungen und Arten der neuen Welt. (Hemipt.-Homopt.). Entomologische Zeitung. Herausgegeben von dem entomologischen Vereine zu Stettin 93: 35-54.

Stål, C. 1862. Bidrag till Rio de Janeiro-tratkens Hemipterfauna.II. Handlingar. Kongliga Svenska Vetenskaps Akademien 3(6): 1-75.

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