In this view, we can see a small appendage extending from the tip of the abdomen. This small and tiered structure is her postabdomen
or Female terminalia
. (compare to the previous image) Thanks for confirming this John!
There is a drawing of these female parts, (of a related genus) in the key, but this was the first time that I had seen the living structure, in this family. Otherwise, I wouldn't have included these dim images.
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