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Myzinum sp.
About 12-15 millimeters in body length, colored as shown. Very spiny legs.
This wasp was sipping nectar from a lone, blooming saltcedar tree (Tamarix sp.) in a vast open field of degraded shortgrass prairie with yucca, sunflower, prickly-pear cacti, and scattered elm trees.
Myzinum exhibits extreme sexual dimorphism. Males are much more slender, have a "pseudosting" at the tip of the abdomen, and have long, straight antennae.
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