[For full-size image, click this link...then click the image again after it loads in your browser window.]

I count 16 (maybe 17?) flagellomeres here, making 18 (or 19?) antennal segments in total (i.e. counting the scape & pedicel, which are obscured in this photo). This is the basis for going with 17-22 antennal segments in "item 2)" of the remarks under the 1st (& last) photo(s) in this series.

For further details, see remarks under the last photo of this series.