Revision of the New World Ceratoculicoides Wirth & Ratanaworabhan (Diptera, Ceratopogonidae, Ceratopogonini) Author Fasbender, Andrew Rhithron Associates Inc., 33 Fort Missoula Road, Missoula, MT 59847, USA. afasbender@rhithron.com text European Journal of Taxonomy 2023 2023-06-26 875 159 202 journal article 54709 10.5852/ejt.2023.875.2147 3351d966-cbeb-42a8-ac49-627b5fc261c7 2118-9773 8083773 32FA008C-B35D-483C-9DBE-1DCCD0868FAC Ceratoculicoidesmoravicus species group Figs 5 , 7 , 9d–i , 10–11 Diagnosis (male) Those species of Ceratoculicoides with their aedeagus lateral margins straight or concave ( Figs 9f, i , 10c, e, h, k ). Description (male) Aedeagus lateral margins straight or concave, posterior margin straight or concave.Hyaline posteromedial incision of aedeagus present. Posterolateral points of aedeagus directed laterally, adjacent or contiguous with apical points. Remarks The C. moravicus group is proposed for C. moravicus , C. aliciae , C. borkenti sp. nov. , C. grogani sp. nov. , C.propinquus sp. nov. and C. sp. M1. All of these species share similar aedeagal characters, most notably the synapomorphy of straight or concave lateral margins of the aedeagus. There are no female characters that can be used to diagnose this group.