Black Setwing Dythemis nigrescens
This guy looks beat up, dusky blue thorax, and blue black and light purple striping on abdomen. Found at the San Antonio River. This was Identified as Black Setwing Dythemis nigrescens
https://www.inaturalist.org/observations/65114238#activity_identification_142275456
https://en.wikipedia.org/wiki/Dythemis_nigrescens#/media/File:Dythemis_nigrescens.jpg

''Dythemis nigrescens'', the black setwing, is a species of skimmer in the family of dragonflies known as Libellulidae. It is found in Central America and North America.
Similar species: Dragonflies And Damselflies
By DebRich
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Uploaded Nov 18, 2020. Captured Mar 1, 2012 14:13 in 159 Dolorosa, San Antonio, TX 78205, USA.