A new species oi Downeshelea Wirth & Grogan and a redescription of the male of Downeshelea cebacoi (Lane & Wirth) (Diptera: Ceratopogonidae)

摘要

A new species of predaceous midge, Downeshelea lanei Felippe-Bauer & Borkent, is described and illustrated based on male and female specimens from the Amazonian Region of Brazil. The male of Downeshelea cebacoi (Lane & Wirth) is redescribed and illustrated and the distribution of this species is now restricted to Panama and Costa Rica. In their revision of the Ceratopogonini of the world, Wirth and Grogan (1988) placed the species of the Monohelea multilineata group in the new genus Downeshelea, which includes 33 species worldwide (Borkent, 2009). Borkent and Spinelli (2000, 2007) listed 18 species from the Neotropical Region and Felippe-Bauer and Silva (2008) subsequently described D. oliveirai Felippe-Bauer from northem Brazil. Seven of these 19 species were originally described from Brazil and two others, D. cebacoi (Lane & Wirth) and D. guianae (Wirth), were reported as occurring in northem Brazil (Para state). With the addition of the new species described here, there are now 10 species knownfrom Brazil and 20 from the entire Neotropical Region.