By some miracle I managed to ID this rove beetle: looks like a match for Platydracus cinnamopterus, rufous morph. 12.7 mm. Found in a mulch pile. Held its tail up in the air at 90 degrees when disturbed. Sorry, not a great shot.
It was too quick to get a good picture. Inch-long beetle-like creature, with two red spots.
Saved from the chickens, though it was putting up a valiant fight
The Rove Beetle, Platydracus maculosus, at Arcadia Management Area.
COL Staphylinidae Platydracus maculosus
ca 1 in.
Mimics a wasp in the family Pompilidae with dark, purple-iridescent wings. A gorgeous and very large rove beetle. Crazily active, crawling around and flicking its wings in a VERY waspy way.