Sinopla humeralis Signoret, 1864 is revalidated and removed from the synonymy of Sniploa obsoletus Signoret, 1864. The first formal records from it original description and first data about its biology are provided. The type species of the genus Sinopla is discussed and the concept of the genus is expanded. The association of Sinopla humeralis with the southern beech Nothofagus Blume and it dis...

Greenidea psidii is an invasive insect from Asia that feeds on a diverse variety of agriculturally and environmentally important plant species. As an essential component of research necessary for development of a better understanding of biodiversity and its conservation, this study documents a major recent expansion in range of G. psidii in the Neotropics to the region of the tropical restinga ...

Rhagovelia zecai sp. nov., from the Brazilian Amazon, is described, illustrated, compared with similar species, and included in a key to species of the robusta group recorded from the country.

The number of species of planthoppers (excluding Delphacidae) known from Delaware is updated from 7 (in 4 families) to 62 species (in 9 families). Specimen abundance is tallied by county and seasonally by two week intervals. The Chao1 abundance estimator suggests that the true fauna may be 74 species, although species incidence tallied from adjacent states (MD, NJ, PA and DC) suggests that a to...

Three new species: Rhyacobates zetteli sp.n., R. angustus sp.n., and R. constrictus sp.n., all from mountainous areas of northern Vietnam, are described. With these new taxa, a total of six species of Rhyacobates has been recorded from       Vietnam. A key to species of Rhyacobates occurring in Vietnam is provided.

Two new species of the previously monotypic genus Platypona DeLong, 1982 from Peru are described and illustrated: P. furcata sp. nov. (Cusco Department) and P. inca sp. nov. (Pasco Department). These two species can be distinguished from each other, as well as from the type-species, P. sinverda DeLong, 1982, mainly by features of the style and aedeagus. A key to the three known species of Platy...

The empoascine genus Ficiana Ghauri is reviewed based on specimens from China. One new Ficiana species, Ficiana aurantia sp. n. is described from Guangxi in south China. An identification key to all species in this genus is provided. The morphological characters of Ficiana and related genera in this tribe are discussed.

The Japanese species of the heterogastrid genus Sadoletus Distant are revised taxonomically. Three species are recog-nized, including a new species, S. ryukyuensis sp. nov., which has been regarded so far as S. valdezi Bergroth in Japan. "True" S. valdezi is confirmed in Japan as well. A key to the Japanese species is provided.