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 ( Trogoides ) maesi Paulsen, 2013 Trogellus maesi was described from two females from Selva Negra in Nicaragua , based on molecular data indicating that the species was distinct ( Paulsen 2013 ). Additionally, morphological characters such as the more sinuate metatibiae and narrower prosternum were present to diagnose the species. The collection of the first males of this species at the type locality by collector Ryo Ishikawa was reported to me recently (J.-M. Maes, pers. comm.), and a specimen generously sent to me by Mr. Ishikawa for study ( Fig. 9a ). The male genitalia do possess the triangular lateral processes on the median lobe as expected by the species’ placement in the subgenus Trogoides Paulsen ( Fig. 9b ). The parameres are similar to those of T. chapinitus Paulsen and T. hawksi Paulsen in being broad and placed laterally. The lateral processes are similar in shape to those of T. chapinitus , but begin closer to the base. Proximal to the lateral processes, the median lobe is distinctly wider than in T. chapinitus .