Open Access

Robert B. Miller, Lionel A. Stange

• Twenty six species of the genus Purenleon Stange (Neuroptera: Myrmeleontidae: Nemoleontini) are recognized from the New World, of which ten are described as new species: P. oaxacae, P. fernandezi, P. tibialis, P. adamsi, P. andinus, P. apache, P. aztecus, P. cavei, P. farri and P. toltecus. Neotypes are designated for Psammoleon banksi Esben-Petersen 1933 and for Formicaleo inaequalis Navás 1913. The larvae of sixteen species have been reared and are described with data on their biologies. The genus is subdivided into three species groups based mostly on leg structure. The inscriptus group consists of fi ve species, the tibialis group consists of two species and the rest of the species are in the bistictus group. Keys to the species based both on adults and larvae are provided and descriptions given.
• Se reconocen veinte seis especies de Purenleon Stange (Neuroptera: Myrmeleontidae: Nemoleontini) con las descripciones de diez especies nuevas: P. oaxacae, P. fernandezi, P. tibialis,P. adamsi, P. andinus,P. apache, P. aztecus, P. cavei, P. farri y P. toltecus. Se designan Neotipos para Psammoleon banksi Esben-Petersen 1933 y Formicaleo inaequalis Navás 1913. Se describen las larvas de diez y seis especies con datos sobre sus biologias. Se separan en tres grupos, grupo de inscriptus con cinco especies, grupo de tibialis con dos especies, y el grupo de bistictus con diez y ocho especies. Se incluyen en una clave para los adultos de veinte seis especies y para las larvas de quince especies. Se provee datos sobre distribución y biologia.