Abstract
Sulcana cunicula sp. nov. is described and illustrated based on four specimens from municipality of Sao Jose dos Pinhais, state of Parana, Brazil. This species can be distinguished from others in the genus by the following characters: (1) head produced, slightly shorter than median length of pronotum; (2) aedeagus bearing a pair of acute ventral processes at mid-length of shaft and extended dorsally. A new record to Sulcana brevis DeLong & Freytag and a key to the three species of the genus are also presented.
Highlights
Sulcana was described by DELONG & FREYTAG (1966) and diagnosed as follows: “Elongate, flat-headed leafhoppers with a flattened crown bearing two elongate median carinae, one either side of median line
Almost parallel margined on basal half
Deep furrow extending from apex of crown almost half way to the clypeus
Summary
Examined specimens were deposited at the Coleção de Entomologia Pe. Jesus Santiago Moure, Universidade Federal do Paraná, Brazil, Curitiba (DZUP). The median length of the crown shows great variation among the currently recognized species of Sulcana It may be longer than the median length of the pronotum in S. carinata, approximately as long as in S. brevis, or slightly shorter in S. cunicula sp. Species of Sulcana superficially resemble those of Sordana Delong, 1976 (three species with widespread distribution in South America) due to the presence of several dark minute pits at head and thorax; L-shaped style with hook-shaped apex, curved dorsally; subgenital plate with acute apex; and aedeagus lacking atrial processes. A.C. Domahovski & R.R. Cavichioli representatives of Sulcana can be differentiated by the greater median length of the crown, two longitudinal carina on each side of the median line and deeper pits at head and thorax. Sordana has a single rounded elevation on the crown, between the ocelli and the median line, like a callus, with the ocelli located in the lateral margin of the sloping portion of the callus
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