Abstract Cacao (Theobroma cacao) and copoazú (T. grandiflorum) agroecosystems represent a common source of income or many small-scale farmers in the Colombian Amazon basin. Most of these systems are set in low disturbance environments; they are considered biodiversity-friendly ecosystems inhabited by several groups of insects. In this study, we carried out a preliminary taxonomic inventory of the microhymenopteran parasitoids present in these agroforestry systems. Twenty-six localities of the Amazonian basin of Colombia were sampled using several insect collecting methods (Malaise trap, sweep net, pitfall, and rearing boxes). Collected specimens were curated and cataloged, establishing the first taxonomic voucher collection of parasitoids from the Colombian Amazon basin. We identified 767 specimens representing 64 species, 274 morphospecies, 143 genera and 20 families, 34 genera and 16 species of these being recorded for the first time in the country. The genus Gbelcia is reported for the first time from the Neotropical region. A new parasitoid-host relationship was found for Horismenus cupreus (Eulophidae) attacking larvae of Phyllocnistis sp. (Lepidoptera, Gracillariidae), which feeds on Annona montana (Annonaceae) leaves.

RESUMEN El museo entomológico de la Universidad Nacional Agronomía Bogotá (UNAB) en Colombia contiene colecciones de artrópodos de importancia en sistemas de producción agrícola y silvícola, provenientes en su mayoría de las regiones de los Andes orientales y la Amazonia cercana del país. Como aporte al conocimiento de la diversidad de avispas parasitoides asociadas a agroecosistemas (cacao en agroforestería, principalmente) de estas áreas geográficas, el presente trabajo presenta una primera aproximación al estudio de las avispas Chalcididae de este museo. Se organizó el estatus curatorial, los géneros representados fueron identificados, y las ocurrencias geográficas en extensión y altitud gráficamente representadas. La Colección Taxonómica Central (CTC) del museo UNAB cuenta con 214 especímenes de la familia, que corresponden a los géneros Brachymeria, Conura, Dirhinus, Ecuada, Haltichella, Notaspidium, Parastypiura y Stypiura, con registros para 17 departamentos. Los géneros Ecuada y Parastypiura, así como 11 especies de Conura se registran por primera vez para el país.

ABSTRACT The entomological museum of Universidad Nacional, Faculty of Agricultural Sciences, Bogota, (UNAB) Colombia, conserves several arthropod collections. These collections are considered of great interest to several agricultural and silvicultural production systems in the eastern Andes and the nearby Amazon region (Caqueta and Putumayo provinces) of the country. As a contribution to the knowledge of the diversity of parasitoid wasps associated to agroecosystems (cacao in agroforestry systems, mainly) of these geographical areas, the current research presents a first approach to the study of Chalcididae wasps at this museum. The curatorial status was organized, the represented genera identified, and the geographic occurrences in extension and altitude graphically represented. The Central Taxonomic Collection (CTC) is the main collection at UNAB. It contains 214 specimens of the family Chalcididae that correspond to the genera Brachymeria, Conura, Dirhinus, Haltichella, Notaspidium, Stypiura, Ecuada, and Parastypiura, with records from 17 provinces. The genera Ecuada and Parastypiura, as well as 11 species of Conura, are recorded for the country for the first time.