A new brachypterous genus of Brazilian stag beetle (Coleoptera: Lucanidae: Lucaninae) with description of three new species Author Grossi, Paschoal Coelho text Zootaxa 2016 4078 1 218 229 journal article 46802 10.11646/zootaxa.4078.1.20 ba98412f-c54a-48f7-b1f3-7b38f56f8b35 1175-5326 263680 836FA2B8-7871-4DED-9646-BD39A4BAA031 Key to the species of Montesinus gen. nov. 1. Body surface opaque. Smaller species, females ≈ 15 mm in length. Ocular canthi of males triangular. Male mandibles with basal internal tooth elongate and cylindrical with acute apex. Elytral punctures distinct, deep and with an internal wall................................................................................... Montesinus monnei sp. nov. 1’. Body surface shiny. Larger species, females more than 15 mm . Males unknown. Elytral punctures shallow.............. 2 2(1’). Dark brown/piceous species; maxillae without hooklets. Pronotal posterior margin uniform. Elytral punctures everywhere not distinct, weakly marked. Mesotibiae with 1–2 spines..................................... Montesinus tatula sp. nov. 2’. Black species. Maxillae with 1 hooklet on galea. Pronotal posterior margin with a small concavity at middle. Elytral punctures more distinct on disc. Mesotibiae with more than 2 spines............................ Montesinus machadoi sp. nov.