ABSTRACT
Synonyms: Trigonocephalus Oppel, 1811a, Trigalus Rafinesque-Schmaltz, 1815 (nomen substitutum), Cophias Merrem, 1820, Lachensis – Gray, 1825 (nomen incorrectum), Lestes Gistel, 1848 (nomen nudum), Lachoesis – Liais, 1872 (nomen incorrectum), Trigonophalus – Palacky, 1898 (nomen incorrectum), Lanchesis – F. Werner, 1909b (nomen incorrectum), Lachess – Amaral, 1930f (nomen incorrectum), Lachesus – L. Ribeiro, 1939 (nomen incorrectum), Lahcesis – Anon., 1979 (nomen incorrectum), and Lachesi – Hoge & Romano-Hoge, 1981b (nomen incorrectum).
