About 5/8" long. In an area where click beetles can be heard in the trees, along with wing-tapping cicadas.
Same beetle as https://www.inaturalist.org/observations/54002114
Observed around 10:30 p.m. by first noticing its tiny taillights in the dark. It crawled about a foot in the 30-ish minutes I watched, then burrowed into duff.