title: Contraction stage and formation of the distance sex bivalent in Oedionychina (Coleoptera, Alticidae).
mesh_terms: D000818:Animals; D002455:Cell Division; D002462:Cell Membrane / Q000648:ultrastructure; D002466:Cell Nucleolus / Q000648:ultrastructure; D002467:Cell Nucleus / Q000648:ultrastructure; D001517:Coleoptera / Q000648:ultrastructure*; D005260:Female; D008297:Male; D008858:Microscopy, Phase-Contrast; D012730:Sex Chromosomes; D013090:Spermatocytes / Q000648:ultrastructure