A kind of green worm sewing mint leaves.
The beautiful white flowers are only 5mm size, but I am enlarging to show the detail. The plant is like a fern which started to grow in a Canadian soil brought to Mexico, so I am not sure if the seeds are local or not.
Red head, black body.
Blue dasher on cattail reed.
My camera built-in GPS reads out as :
Lat. 39;37;56.6639
Long. 104:51;28.4880
The area is the Cottonwood Creek Wetlands area. In this instance, at the confluence of Cottonwood Creek with Cherry Creek State Park & Reservoir, Denver, CO, 80014.