This project took several field trips, 11,000 miles driven, 5,532 specimens observed from 23 collections, 1,762 of them collected by myself after sampling palms in over 100 localities. In addition to the morphology of the adults, this sampling resulted in a wealth of natural history information and also information on the immature stages, also summarized in the revision. It is really great to see this monograph published, which will serve as foundation for a number of studies already ongoing.
Here is a photo of all described species of Anchylorhynchus, with multiple color morphs for many of them. One of the most interesting aspects of the genus is that many of the taxa that were previously considered as separate species turned out to be just different color morphs, while many of the yellowish beetles considered to be the same thing were in fact separate clearly diagnosable species!
de Medeiros BAS & Vanin SA. 2020. Systematic revision and morphological phylogenetic analysis of Anchylorhynchus Schoenherr, 1836 (Coleoptera, Curculionidae: Derelomini). Zootaxa 4839: 1–98.
An overview of species of Anchylorhynchus