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Thank you very much for the reply. I know the work of Hull, and also know that this genus has rotated the genitalia and that the bottom position was the epandrium, but my question is different. I see some Psilocurus at the apex of epandrium two prosess or one on each side of cercis, (I am not sure), projecting towards the end of the abdomen,covering the genitalia.
Gives the impression that it is an extension of the epandrium
My picture is not clear. Anyway I am very grateful.