New species of Prolachesilla Mockford & Sullivan (Psocodea: 'Psocoptera': Lachesillidae: Graphocaeciliini) from Bolivia and Mexico.

The genus Prolachesilla Mockford & Sullivan presently includes nine species, all described when the genus was erected; since then, no other species have been discovered. Here, we describe and illustrate one Bolivian and three Mexican species. This is the first record of Prolachesilla from Bolivia. A key to the species of the genus is included.

New species of Graphocaecilius Enderlein (Psocodea: 'Psocoptera': Lachesillidae) from Colombia.

Three new species of Graphocaecilius Enderlein are here described and illustrated; the species were found in the Colombian departments of Valle del Cauca and Risaralda, raising to five the number of species of this genus in Colombia, making it the most species rich country for Graphocaecilius in South America. A key to the species in the genus is included.