Through the restructuring of an entomological collection, a treasure: 30s’ dipterans from the personal collection of Carlos Rodolpho Fischer bringing new records

Abstract

Biological collections contain valuable information about biodiversity and are essential to both science and society. During the restructuring of the entomological collection at the Laboratório de Coleções Zoológicas of the Instituto Butantan, a wooden cigar box was discovered containing a collection of fly specimens (Order Diptera) collected in the municipality of São Paulo by Carlos Rodolpho Fischer, a German draftsman, photographer, and expert in Diptera. The specimens were treated with isopropyl alcohol, dried, identified, registered, and properly stored. A total of 293 individuals from 13 Diptera families were found. Of these, 248 specimens were identified to the species level. New records of three species and one genus were added to the state of São Paulo: Acrosticta apicalis (Williston, 1896), Polymorphomyia tridentata (Hendel, 1914), Tetreuaresta obscuriventris (Loew, 1873), and Poecilominettia sp. 1. The biological material has been incorporated into the Coleção Entomológica do Instituto Butantan. Additionally, an internal database containing photographic records of the specimens, their respective labels, and the box in which they were created.