1st image has a female Pseudoperga ferruginea on the left next to a male Pseudoperga guerinii. 2nd image is a female Xyloperga amenaida. 3rd image is a male Pergagrapta bella. It's a great record showing a strong hilltopping behaviour in Perginae species. I assume it's a sparsely vegetated rise, leading to a concentration of insects. If you split the obs out then they can be separately identified.