KEY TO THE KNOWN FOSSIL SPECIES OF THE SUBGENUS PARAMONGOMA BRUNETTI, 1911 (MALE SPECIMENS ONLY)

1. Wing with well-marked dark brown stigma ................................................................................................. 2

— Wing clear, translucent, without or with at most weakly marked stigma ...................................................... 4

2. Wing with small brownish stigma; antenna with the first flagellomere longer than the pedicel .................... 3

— Wing with dark brown stigma surrounded by a large, pale brown area; antenna with the first flagellomere shorter than the pedicel ............................................. Trentepohlia (Paramongoma) miocenica Mederos & Wang n. sp.

3. Gonostylus with large blunt tooth in the basal half ................. T. (P.) immemorata Podenas & Poinar, 2001 .

— Gonostylus without tooth in the basal half ..................................... T. (P.) mexicana Podenas & Poinar, 2001 .

4. Eighth tergite of abdomen with wide and deeply emarginated posterior margin; antenna with apical flagellomere longer than preceding segment ......................................................... T. (P.) dzeura Podenas & Poinar, 2009 .

— Eighth tergite of abdomen simple, without additional structures; antenna with apical flagellomere as long as preceding segment .................................................................................. T. (P.) agri Podenas & Poinar, 1999 .