The purpose of this application, under Article 29 of the Code, is to conserve the names aulacoscelini Chapuis, 1874 and aulacoscelinae Chapuis, 1874 first used by Monrós (1949 and 1953, respectively) for Aulacoscélites Chapius, 1874 for a group of Coleoptera currently placed in the orsodacnidae Thomson, 1859 (traditionally they have been placed in the chrysomelidae Latreille, 1802). There are two spellings currently used for this group of beetles, aulacoscelinae and aulacoscelidinae. Although aulacoscelidinae appears to be grammatically correct, aulacoscelinae has been in prevailing usage for the last 55 years and was in sole use for 37 years, from 1953 to 1990. The fact that both spellings are currently in use is undesirable, promoting instability.