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Tiny, Tiny, Ceratina arizonensis from the Zuma Canyon in the Santa Monica National Recreation Area in coastal California. Almost all Ceratina have that white stripe (or some greater embellishment thereof) on their face and are relatively hairless, perhaps because of their lifestyle in the pith of plant stems or...perhaps not.

Ceratina buscki a very small shiny green species from Panama as collected by Sandra Rehan as part of her studies. Ceratina species are almost always stem nesters in the soft pith of brambles and other small woody plants and can be one of the most common bees in some areas.

Ceratina buscki a very small shiny green species from Panama as collected by Sandra Rehan as part of her studies. Ceratina species are almost always stem nesters in the soft pith of brambles and other small woody plants and can be one of the most common bees in some areas.

Ceratina buscki a very small shiny green species from Panama as collected by Sandra Rehan as part of her studies. Ceratina species are almost always stem nesters in the soft pith of brambles and other small woody plants and can be one of the most common bees in some areas.

More central american Ceratina shots...here is the male of C. buscki shown earlier. Specimen collected by Sandra Rehan. 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.

More central american Ceratina shots...here is the male of C. buscki shown earlier. Specimen collected by Sandra Rehan. 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.

More central american Ceratina shots...here is the male of C. buscki shown earlier. Specimen collected by Sandra Rehan. 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.

Ceratina guarnacciana, female, Dominican Republic

Ceratina guarnacciona, female, Dominican Republic March 2012

How could one not love the Genus of Ceratina? Elegant, with just the right combination of extra interesting features to keep the interest up. Note the raised clypeus in this one and the lovely fat hairs along the abdominal sections. From the collections of Sandra Rehan at the University of New Hampshire.

How could one not love the Genus of Ceratina? Elegant, with just the right combination of extra interesting features to keep the interest up. Note the raised clypeus in this one and the lovely fat hairs along the abdominal sections. From the collections of Sandra Rehan at the University of New Hampshire.

How could one not love the Genus of Ceratina? Elegant, with just the right combination of extra interesting features to keep the interest up. Note the raised clypeus in this one and the lovely fat hairs along the abdominal sections. From the collections of Sandra Rehan at the University of New Hampshire.

Ah, a mysterious Ceratina introduced into the Hawaiian island chain. This species is found throughout the islands now, but no one is quite sure what the species is. It is near the species C. dentipes but may or may not be it. So many mysteries in the world and too many introduced species. Photography by Sierra Williams and Photoshopping by Elizabeth Garcia.

Ah, a mysterious Ceratina introduced into the Hawaiian island chain. This species is found throughout the islands now, but no one is quite sure what the species is. It is near the species C. dentipes but may or may not be it. So many mysteries in the world and too many introduced species. Photography by Sierra Williams and Photoshopping by Elizabeth Garcia.

Tiny Ceratina from Panama...in the first picture in this series you will see a rod going into its body to hold it in position for photographing in our mini bee studio. Actually this is not a rod but the very tip of the finest acupuncture pin. Yep, that is a small bee.

Tiny Ceratina from Panama...in the first picture in this series you will see a rod going into its body to hold it in position for photographing in our mini bee studio. Actually this is not a rod but the very tip of the finest acupuncture pin. Yep, that is a small bee.

Tiny Ceratina from Panama...in the first picture in this series you will see a rod going into its body to hold it in position for photographing in our mini bee studio. Actually this is not a rod but the very tip of the finest acupuncture pin. Yep, that is a small bee.

Tiny Ceratina from Panama...in the first picture in this series you will see a rod going into its body to hold it in position for photographing in our mini bee studio. Actually this is not a rod but the very tip of the finest acupuncture pin. Yep, that is a small bee.

Yep, there are a lot of Ceratinas out there in the world. Here is the last in the series of Ceratinas from Sandra Rehan. As usual it is a small one from Panama. Tiny bees almost always have plenty of wing pop...no exception here.

Yep, there are a lot of Ceratinas out there in the world. Here is the last in the series of Ceratinas from Sandra Rehan. As usual it is a small one from Panama. Tiny bees almost always have plenty of wing pop...no exception here.

Yep, there are a lot of Ceratinas out there in the world. Here is the last in the series of Ceratinas from Sandra Rehan. As usual it is a small one from Panama. Tiny bees almost always have plenty of wing pop...no exception here.