Attending the USFWS Early Career Conservationist Workshop this week! I went to the morning birding event when I found this fella!
This observation is for the female on the left in the composite image. Found on Asclepias latifolia.
This observation is for the male on the right in the composite image (note the prominent tubercle--the folded-over edge--on the mandible, which is found only in the males). Found on Asclepias latifolia.