, paussids are rare insects, strictly co,n(ined to the tro.pics. Only one individual has been recorded rom Mexico (Pallister 1954), so ar as I know. Six additi,onal Mexican specimens that are now before me are there.ore o special interest. They represent three distinct species. All three species have been known before ro.m So'uth America .or at least rom Panama. _All t'hree may therefore have spread northward eo.mparatively recently, perhaps since the Central American isthmus was completed late in the Pliocene. The accompanying
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.