Male aedeagal median lobe, left view, and antecostal apodeme and tergite of abdominal IX, dorsal view. A–B. T. giraudyi; Chili, “Tropopterus nitidus Sol.”, Chaudoir Coll. (MNHN). C, D. T. peckorum; Quillota Prov., P. N. La Campana (FMNH) (D darkened to allow viewing of teneral dissection). E–H. T. robustus; Malleco Prov., M. N. Contulmo. E–F. (CMNH). G, H. (FMNH). For abbreviations used to label structures see Table 1.