A–L. Schematized drawings of all available fore- and hindwings of Amphientomum species from the literature. The same scale bar was used for A–L. A. Am. ectostriolate, B. Am. flexuosum; C. Am. hieroglyphicum, female; D. Am. hieroglyphicum, male; E. Am. loebli, female; F. Am. mimulum, male; G. Am. montanum, female; H. Am. pauliani; I. Am. punctatum, male; J. Am. punctatum, female; K. Am. simile, female; L. Am. striaticeps, female. Figures modified from the following: A after Li (2002); B after Badonnel (1955); C, D, F, G, I, J, K, L after Badonnel (1967); E after Badonnel (1979); H after Smithers (1964).