No Red Rock Skimmer had been seen after 21 December in Arizona prior to 2021 (http://azdragonfly.org/news/red-rock-skimmer-paltothemis-lineatipes-mari...). Extending the known flying period of this species in the state by two days, four males, all shown below, were observed in Queen Valley on 23 December 2021.

Addition: A male continued at the same location on 28 December 2021, as did an ovipositing female on 29 December. These observations further extends the known flying period of thw species in the state.