A–Q. Schematized drawings of all available laciniae of Amphientomum species from the literature and of ‡Amphientomum knorrei sp. nov. (Amphientomidae: Amphientominae) preserved in piece PMJ Pa 5809. The laciniae are not up to scale, and the orientation of the lacinia was flipped at 180° for C, E, H, J–L, N–P from the original drawings, only the apical portions of the laciniae are shown. A. Am. acuminatum, male; B. Am. aelleni, nymph; C. Am. annulicorne, female; D. Am. annulitibia; E. Am. dimorphum, sex not specified; F. Am. dimorphum, sex not specified; G. Am. flexuosum, female; H. Am. hieroglyphicum; I. ‡Am. knorrei sp. nov., female, redrawn after 3D render; J. Am. loebli, female, K. Am. mimulum, sex not specified; L. Am. montanum, female; M. Am. pauliani, male; N. Am. punctatum, male; O. Am. simile, female; P. A. simile, female; Q. Am. striaticeps, female. Figures modified from the following: A, C, E, F, H, K, L, N, O, P, Q after Badonnel (1967); D after Smithers (1999); B after Badonnel (1959); G after Badonnel (1955); J after Badonnel (1979); M after Smithers (1964).

  Part of: Boudinot BE, Bock BL, Weingardt M, Tröger D, Batelka J, LI D, Richter A, Pohl H, Moosdorf OTD, Jandausch K, Hammel JU, Beutel RG (2024) Et latet et lucet: Discoveries from the Phyletisches Museum amber and copal collection in Jena, Germany. Deutsche Entomologische Zeitschrift 71(1): 111-176. https://doi.org/10.3897/dez.71.112433