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The last image better matches pluvialis than procellaris in Michael Ackland's draft key. In particular the lobe on the inner faces of the surstyli has no indentation in line with the tip of the cercal plate in procellaris but pluvialis does have it.

Also the side view of the surstylus in #10 looks more like pluvialis which has it more 'bent' than procellaris.

And the longest arista hairs in #8 are only about 0.5 the arista base width which again matches pluvialis rather than procellaris (1.0 the arista base width).