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Ludwigia alternifolia seedbox with weevil, Asanthoscelides

Detailed Description

Look in the bottom right hand side of the seedbox (Ludwigia alternifolia) pod we opened up. There you will see a small bruchid weevil (Acanthoscelides alboscutellatus) which, as a small larva, it fed upon the seeds of the seedbox plant...but once it grew up to be a big strong adult weevil it could not escape the seedbox capsule because it was too large to fit through the single pore in the seedbox capsule head that allows seeds to exit but not weevils. Some capsules fall apart allowing their weevils to escape...but many never do...dooming the weevils that live inside. Sad. Thanks to Cathy Stragar for hunting down the weevil story and Helen Lowe Metzman brought in the seedbox and took the pictures. Photography Information: Canon Mark II 5D, Zerene Stacker, Stackshot Sled, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash in Styrofoam Cooler, F5.0, ISO 100, Shutter Speed 200 USGSBIML Photoshopping Technique: Note that we now have added using the burn tool at 50% opacity set to shadows to clean up the halos that bleed into the black background from "hot" color sections of the picture.


Public Domain.