Revisão taxonômica dos grupos de espécies conicus e secretus de Dissomphalus Ashmead (Hymenoptera, Bethylidae) da região neotropical
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Data
2025-11-27
Autores
Amorim, Manuela Silva de
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Universidade Federal do Espírito Santo
Resumo
The present study provides an in-depth taxonomic revision of the conicus and secretus species-groups of Dissomphalus Ashmead (Hymenoptera, Bethylidae) from the Neotropical Region. Dissomphalus is the most speciose genus within Bethylidae, with cosmopolitan distribution, and accounts for 317 species in the Neotropics, over 50% of the recognized species from the world. The groups are used to facilitate alpha-taxonomic studies of the Pan-American species, however, the conicus and secretus species-groups have a history of overlapping characteristics that hinders accurate delimitation, for this reason we analysed 3.855 specimens. As a result we created 13 new species-groups, in addition to the ones revised, each with its own diagnosis. We found 115 species, of which 67 are new to science, 49 of them allocated in the species-groups proposed and 18 incertae sedis. We also revised 45 known species, of which four were previously allocated in other species-groups. We provide an updated taxonomic key for all the species of each group, as well as diagnosis for the known species, description and illustration for all the new species. Our results showed that there were many patterns of external morphology, tergal process and genitalia hidden in the revised groups, leading to association of species never done before and the identification of D. puteolus Evans and D. nanellus Evans after 56 years of its publication. Our findings also provides a clear understanding of the morphology of the tubercles of the species-groups analysed and the importance of understudied taxonomic characters, also correlating species-groups with geographical distribution. Thus a robust framework of species-groups revisions in Dissomphalus is provided, paving the way for future molecular, biogeographical, phylogenetic and morphology based studies.
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Parasitoides , Pristocerinae , Vespas planas