These two were in the same place as https://www.inaturalist.org/observations/202522265. Approx 1m outside the drip line of the cave entrance. The bristletails were in a recess on the wall of the 1.5m wide crack that leads to the cave entrance. Not sure of the gender of either. I could not see an ovipositor, nor could I see the spurs on the maxillipalps.
Doug farm. I suggest Bristletail?
Peak Formosa trail clearing. Suggest Phalces brevis.