Key to genera of the Hecalapona complex, modified from Freytag, 2013

1 Face with an arched carina that connects antennal ledges medially (Figs 1B, 3B); forewing with extra crossveins at apical third (Fig. 3D)........................................................................... Gracilipona gen. nov.

1’ Face without an arched carina; forewing without extra crossveins at apical third.................................... 2

2 Aedeagus preatrium with a pair of processes.................................... Spinanella DeLong & Freytag, 1972

2’ Aedeagus preatrium without processes.................................................................... 3

3 Subgenital plates without setae............................................... Nulapona DeLong & Freytag, 1975

3’ Subgenital plates with setae............................................................................. 4

4 Male subgenital plates with inner margin expanded, overlapping at rest...................... Hyperapona Freytag, 2013

4’ Male subgenital plates with inner margin not expanded....................................................... 5 5 Aedeagus shaft with paired basal processes................................................................. 6

5’ Aedeagus shaft without paired basal processes.............................................................. 8

6 Style, in lateral view, usually long, narrow, sickle-shaped............................ Hirsutapona Freytag, 2013 (part)

6’ Style, in lateral view, not sickle-shaped, usually foot-shaped, enlarged at apex or bifurcate........................... 7

7 Aedeagus shaft with one pair of basal processes.......................................... Xuthopona Freytag, 2018

7’ Aedeagus shaft with two pairs of basal processes............................... Hecalapona DeLong & Freytag, 1975

8 Aedeagus with paired apical or subapical processes or without processes......................................... 9

8’ Aedeagus with unpaired apical or subapical processes, single ventral median process present................................................................................................. Carapona DeLong & Freytag, 1975

9 Style enlarged at apex.............................................................. Zanelopona Freytag, 2022

9’ Style not enlarged at apex..................................................... Hirsutapona Freytag, 2013 (part)