The genus llithucia Stal, 1869, considered up to now as a junior synonym of Antonae Stal, 1867, is revalidated. Otherwise, the genera Centrugonia Stal, 1869, Electrophina Buckton, 1905, Penichrophorus Richter, 1943, and Achantomedes Fon-seca & Diringshofen, 1974, are brought into llithucia Stal as new synonyms, except Electrophina already considered so. Some other nomenclatural changes are introduced, such as revalidated names, new combinations, restored combinations, and new synonymies: llithucia Stal, 1867 nom. rev. = Centrugonia Stal, 1869 syn. n. = Penichrophorus Richter, 1943 syn. n. = Achantomedes Fonseca & Diringshofen, 1974 syn. n.; llithucia brevicornis (Richter, 1941) comb, n.; llithucia centrotoides (Walker, 1858) comb. n. = Stictocephala nigriventris Funkhouser, 1919 syn. n. = Centrogonia flavolimbata Goding, 1921 syn. n. = Penichrophorus bogotensis Richter, 1943 syn. n. = Ceresa luteimaculata Funkhouser, 1940 syn. n.; llithucia ciliata (Fairmaire, 1846) comb. n. = Ceresa extensa Walker, 1858 syn. n. = Centrogonia lutea Funkhouser, 1919 syn. n.; llithucia dilalata (Richter, 1943) comb. n.; llithucia elegans (Fowler, 1895) comb, n.; llithucia grisescens (Funkhouser, 1940) comb, n.; llithucia incorni-gera (Richter, 1942) comb, n.; llithucia impressa (Richter, 1943) comb, n.; llithucia nasuta (Stal, 1859) comb. n. = Penichrophorus sericatus Richter, 1943 syn. n.; llithuciapinguicornis (Funkhouser, 1919) comb, n.; llithucia reducta (Richter, 1955) comb. n.; llithucia richteri (Kopp & Yonke, 1979) comb, n.; llithucia terminata (Fairmaire, 1846) comb. rest. = Ceresa morio Fairmaire, 1846 syn. n. = Achantomedes flavocephala Fonseca & Diringshofen, 1974 syn. n.; llithucia vianai (Remes-Lenicov, 1970) comb. n. The following new species are described and illustrated: llithucia delvalle sp. n. (from Venezuela), llithucia nigrata sp. n. (from Colombia), and llithucia boliviano sp. n. (from Bolivia).

The following nomenclatural changes are made: Amastris convoluta (Fabricius, 1781) comb. nov. (formerly Darnis; Hebetica); Amastris maculata Funkhouser, 1922 = Amastris fasciata Broomfield, 1976 syn. nov. = Amastris pseudomaculata Broomfield, 1976 syn. nov. = Amastris inermis Broomfield, 1976 syn. nov. = Amastris sakakibarai Broomfield, 1976 syn. nov.; Amastris elevata Funkhouser, 1922 = Amastris vismiae Haviland, 1925 syn. nov. = Amastris flavifolia Funkhouser, 1927 syn. nov.

Restructure of the genus Deois Fennah; description of a new genus and new species (Homoptera, Cercopidae, Tomaspidinae). The genus Deois Fennah is reviewed and some changes in the taxonomy are introduced. The genus and its four subgenera are redefined, having now the following composition: 1) subgenus Deois (Deois) with: D. (D.) correntina (Berg, 1879), D. (D.) grandis Sakakibara, 1979, D. (D.) knoblauchii (Berg, 1879) (formerly in D. (Pandysia)), D. (D.) morialis (China & Myers, 1934), D. (D.) mourei Cavichioli & Sakakibara, 1994, D. (D.) piraporae Sakakibara, 1979, D. (D.) pseudoflavopicta (Lallemand, 1938) comb. nov. (formerly in Mahanarva) = D. (D.) similis Sakakibara, 1979 syn. nov., D. (D.) rubropicta Sakakibara, 1979, D. (D.) spinulata sp. nov., D. (D.) terrea (Germar, 1821), D. (D.) uniformis (Distant, 1909). 2) subgenus Deois (Pandysia) with: D. (P.) bergi sp. nov., D. (P.) crenulata sp. nov., D. (P.) schach (Fabricius, 1787) = Sphenorhyna transiens Walker, 1851 syn. nov.. 3) Deois (Fennahia) with: D. (F.) coerulea (Lallemand, 1924), D. (F.) flexuosa (Walker, 1851). 4) Deois (Acanthodeois) with: D. (A.) flavopicta (Stål, 1854), Deois (A.) incompleta (Walker, 1851). The genus Orodamnis Fennah, 1953 stat. nov. (formerly Deois (Orodamnis)) with: Orodamnis rhynchosporae (China & Myers, 1934) comb. nov. The genus Deoisella gen. nov. is described for: Deoisella fasciata sp. nov. (type species) and Deoisella picklesi (China & Myers, 1934) comb. nov.

Centronodus bilobalus sp. n. (Ecuador), Centronodus bolivianus sp. n. (Bolivia) and Centronodus magnificus sp. n. (Brazil), are described and illustrated.

Postanomus maculatus sp. n., from Brazil, Paraná, is described and illustrated.

Seven new species of Paracentronodus Sakakibara, 1971 from Brazil, are described: P. canarinus sp. n. (type loc: Pedro Canário, Espírito Santo); P. cristatus sp. n. (type loc: Sinop, Mato Grosso); P. favisiae sp. n. (type loc: Encruzilhada, Bahia); P. nalalinae sp. n. (type loc: Caraça, Minas Gerais); P. nevesi sp. n. (type loc: Caruaru, Pernambuco); P. nigrostriatus sp. n. (type loc: Sinop, Mato Grosso), and P. urbanae sp. n. (type loc: Encruzilhada, Bahia). Hemiptycha viridistriga Walker, 1858, considered by Metcalf & Wade (1965) in Hypheodana Metcalf, 1952, as Darninae genus, is transferred to Centronodinae, as Paracentronodus viridistriga (Walker, 1858) comb. n. Illustrations and a key for the species are also given.

Cyphonia cabetteae sp. n. and C. xavantina sp. n., both from Nova Xavantina, Mato Grosso, are described and illustrated. These two new species are very close to Cyphonia intermedia Sakakibara, 1968 and to Cyphona clavata (Fabricius, 1787), concerning their overall aspects.

Heteronotus mourei, sp.n. is described from Conde, Paraíba, Brazil.