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Proposição e descrição das espécies do grupo Edessa pallida, Dallas, 1851 (Heteroptera, Pentatomidae)
(Universidade Federal do Pará, 2008) CAXIAS, Fabricio da Costa; FERNANDES, José Antônio Marin; http://lattes.cnpq.br/6743352818723245
Pentatomidae is the fourth biggest family in Heteroptera and is composed by 470 genera and 4700 species. It is a world wide distributed family, but the subfamilies Cyrtocorinae, Discocephalinae and Edessinae are only found in the Neotropics. Among the Pentatomidae subfamilies Edessinae presents the major taxonomic and nomenclatural problems, which are concentrated in the genus Edessa. Edessinae is a megadiverse taxa (about 280 known species plus 350 unknown species) and composed by five genera: Edessa (259 described species), Olbia (5), Pantochlora (1), Peromatus (7) e Brachystethus (10). Recently Edessa has been studied by dividing the species in groups of morphologically similar species. The present work follows this line and proposes the Edessa pallida group. This group is based in external morphological characteristics such as the narrow body shape, punctures pattern, forewing reticulation abdominal spot pattern and also the characteristics of male genitalia. The included species are Edessa pallida Dallas, 1851, Edessa inscripta Walker, 1868 e Edessa polymita Distant, 1890, and five new species. The total sample examined in this work was 70 individuals belonging to 12 national and foreign collections. The species were described, illustrated and measured following the pattern adopted to the family. The described species had their distribution amplified. The sp. nov. 1 was described based on specimens from Surinam, French Guiana and Brazil; the sp. nov. 2 from Guiana and Brazil; the sp. nov. 3 from Brazil; the sp. nov. 4 from French Guiana; and the sp. nov. 5 from Guiana, Surinam, French Guiana and Brazil. An identification key and a geographic distribution map of the species are presented.