Abstract
Costalimada brasiliensis, gen. and sp. nov. is described from Lafoensia pacari (Lythraceae) in Minas Gerais, Brazil. Its position within the Aleurodicinae is discussed, and an amendment to a previously published key to worldwide genera of Aleurodicinae is presented. The definitions of many of the New World genera of Aleurodicinae have been unsatisfactory for many decades (Martin, 2008a). Some early attempts to provide keys to whitefly genera of both subfamilies (e.g. Bondar, 1923; Sampson, 1943; Sampson & Drews, 1941, 1956) tended to provide couplets of unrealistic brevity, and also revealed more taxonomic problems than were solved. Over the past seven years the present author has studied examples of puparia of all nominal aleurodicine genera from the Neotropical Region, along with a large proportion of the described species. In 2004 a key to the puparia of New World aleurodicine genera was presented, based on revised generic diagnoses suggested by a study of whiteflies in Belize (Martin, 2004). This study led to the description of Kaieteurodicus, a new genus of neotropical aleurodicine whitefly from Guyana and Panama, accommodating two species (Martin, 2008a). This was followed by a revision of the type genus of the Aleurodicinae, Aleurodicus Douglas, in which an identification key to all genera of Aleurodicinae was presented, including those native to the Old World (Martin, 2008b).
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