Check out the Gallery of Central Sclerite Complexes for close-ups of that critical portion of the internal sac.
(Illustrations not to same scale.)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/balli.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/foveum.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/argenteolum.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/alaskense.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/stenoderum.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/carinula.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/velox.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/lapponicum.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/punctatostriatum.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/hesperium.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/lorquinii.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/zephyrum.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/levettei.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/inaequale.gen.gif)
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
![](/tree/ToLimages/litorale.gen.gif)
- Bembidion balli Lindroth
- Bembidion foveum Motschulsky
- Bembidion argenteolum Ahrens
- Bembidion alaskense Lindroth
- Bembidion stenoderum Bates
- Bembidion carinula Chaudoir
- Bembidion velox (Linné)
- Bembidion lapponicum Zetterstedt
- Bembidion punctatostriatum Say
- Bembidion hesperium Casey
- Bembidion lorquinii Chaudoir
- Bembidion zephyrum Fall
- Bembidion levettei Casey
- Bembidion inaequale Say
- Bembidion litorale (Olivier)