Ectolachesilla: A New Genus Of Lachesillidae (Insecta: Psocoptera) From Amazonas, Brazil

ABSTRACT Ectolachesilla ariasi n.g., n. sp., is described from a single female collected in the state of Amazonas, Brazil. It belongs in subfamily Lachesillinae, and presents a combination of characters that makes it quite distinct from the other genera in the subfamily. Wing venation is caeciliusid, gonapophyses have a sclerotized band anteriorly, and the subgenital plate has two short, setose, postero-lateral lobes. A key to the genera of Lachesillinae is provided. The female holotype will be deposited in the INPA Collection, Manaus, Amazonas, Brazil.