| Common Name | County | Date | Observer(s) | Number | Comments | Record Type |
| 1 Halloween Pennant [Celithemis eponina] | Washington | 2023-08-16 | J. Lynch, E. Corey, B. Wheeler | 12 | PETT | Sight |
| 2 Halloween Pennant [Celithemis eponina] | Washington | 2020-06-21 | B. Bockhahn | 4 | PETT | Sight |
| 3 Halloween Pennant [Celithemis eponina] | Washington | 2018-09-03 | B. Bockhah, K. Kittelberger | 4 | PETT | Sight |
| 4 Halloween Pennant [Celithemis eponina] | Washington | 2017-06-16 | Mark Shields | 3 | Conaby Creek, from boating access area to 2.25 km upstream by kayak | Photo online |
| 5 Halloween Pennant [Celithemis eponina] | Washington | 2009-06-19 | E. Corey | 6 | PETT - Pocosin Natural Area, south shore of the lake | Sight |
| 6 Halloween Pennant [Celithemis eponina] | Washington | 2004-06-19 | ASH | 8 | PETT - Seen in park on butterfly count. | Sight |
| 7 Halloween Pennant [Celithemis eponina] | Washington | ? | Duncan Cuyler | 1 | Donnelly, T.W. 2004. Distribution of North American Odonata. Part I, Part II and Part III | d |