Generic changes in the stag beetle tribe Aesalini (Coleoptera: Lucanidae: Aesalinae) with the description of two new species Author Paulsen, M. J. text Insecta Mundi 2018 2018-10-31 666 1 10 journal article 10.5281/zenodo.3710074 f1bbeff3-8e8b-408c-a46c-11595dcf1560 1942-1354 3710074 3EB9D858-BE71-4F1F-BEBD-136898474B51 Trogellus Paulsen, 2013 Type species. Trogellus herrmanni Paulsen. Paulsen (2013) created the genus Trogellus to accommodate ten species from Central America, eight of which were new, placing them into three subgenera. At that time the genus was known from northeastern Mexico to the Costa Rica / Panama border area. The discovery of three specimens from the Darién Gap region of Panama , representing a new species described below, advances the distribution of the genus to extreme eastern Panama only a few kilometers from Colombia . In addition, males of the species T. maesi Paulsen have been recently collected for the first time. This allows for the first illustration of the dorsal habitus of males as well as of the male genitalia.