Natural history, courtship, feeding behaviour and parasites of Theridion evexum (Araneae: Theridiidae).
Seasonal patterns of parasitism of the tropical spiders Theridion evexum (Araneae, Theridiidae) and Allocyclosa bifurca (Araneae, Araneidae) by the wasps Zatypota petronae and Polysphincta gutfreundi (Hymenoptera, Ichneumonidae).
Thanius biennis, a new gall-inducing weevil with a two-year life-cycle from Costa Rica (Coleoptera: Curculionidae: Baridinae).
Natural history and larval behavior of the parasitoid Zatypota petronae (Hymenoptera: Ichneumonidae).
Notes on the neotropical spider genus Modisimus (Pholcidae, Araneae), with descriptions of thirteen new species from Costa Rica and neighboring countries.
Sucesión de larvas de muscoideos durante la degradación cadavérica en un bosque premontano húmedo tropical.
Potencial invasor de Megaskepasma erythrochlamys (Acanthaceae) en un fragmento boscoso de la Universidad de Costa Rica.
