Xestia smithii By Matt Young January 20, 2020 12:00 MST Xestia smithii – Smith's dart, Boulder, Colorado, August 13, 2019. Yes, these moths are engaging in the same behavior as the frogs we posted a few weeks ago. Since I know someone will ask: Tony-2 at Bugguide thinks the lower one may be the male, but is impossible to be certain without seeing the antennas. Thanks to Bob Biagi for providing the identification.