Posted by John Carr on 17-11-2022 19:32
#2
Try keying it with straight humeral setae.
When the North American key splits on the basis of humeral setae it adds: "if middle basal bristle forming an apparent angle with outer and inner basal bristles, this angle at least 160°; middle basal bristle usually medial to a line between outer basal and outer anterior bristles".