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Palaeorhiza species, Badass Masked Bee, specimen collected in Papua New GuineaThin, relatively hairless, dangerous looking Masked Bees are waspish in aspect since they carry their pollen and nectar internally rather than trapped in external hairs.

Palaeorhiza species, Badass Masked Bee, specimen collected in Papua New GuineaThin, relatively hairless, dangerous looking Masked Bees are waspish in aspect since they carry their pollen and nectar internally rather than trapped in external hairs.

Palaeorhiza species, Badass Masked Bee, specimen collected in Papua New GuineaThin, relatively hairless, dangerous looking Masked Bees are waspish in aspect since they carry their pollen and nectar internally rather than trapped in external hairs.

Tiny. One would want this in your woodland rock garden. Dwarf Ginseng, Panax trifolius. Specimen and picture by Helen Lowe Metzman. 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.

An Uncommon (or is it?) Deerberry specialist. If you don't collect bees on Deerberry (Vaccinium staminium) you will never see this bee (Panurginus atramontensis). It only gathers pollen and probably almost all of its nectar from this plant.

An Uncommon (or is it?) Deerberry specialist. If you don't collect bees on Deerberry (Vaccinium staminium) you will never see this bee (Panurginus atramontensis). It only gathers pollen and probably almost all of its nectar from this plant.

An Uncommon (or is it?) Deerberry specialist. If you don't collect bees on Deerberry (Vaccinium staminium) you will never see this bee (Panurginus atramontensis). It only gathers pollen and probably almost all of its nectar from this plant.

An Uncommon (or is it?) Deerberry specialist. If you don't collect bees on Deerberry (Vaccinium staminium) you will never see this bee (Panurginus atramontensis). It only gathers pollen and probably almost all of its nectar from this plant.

An Uncommon (or is it?) Deerberry specialist. If you don't collect bees on Deerberry (Vaccinium staminium) you will never see this bee (Panurginus atramontensis). It only gathers pollen and probably almost all of its nectar from this plant.

An Uncommon (or is it?) Deerberry specialist. If you don't collect bees on Deerberry (Vaccinium staminium) you will never see this bee (Panurginus atramontensis). It only gathers pollen and probably almost all of its nectar from this plant.

From the northern hemisphere comes ... Panurginus. A common group of largely dark little bees, with the males, at times having yellow on their faces, in keeping with the general pattern of males having more yellow than females.

From the northern hemisphere comes ... Panurginus. A common group of largely dark little bees, with the males, at times having yellow on their faces, in keeping with the general pattern of males having more yellow than females.

A tiny tiny bee, a specialist on Potentilla or Cinquefoil plants in North America. This one came from a colony I discovered in a dirt patch right in the front lawn of our laboratory. These sorts of bare dirt / clay / sand areas are often great bee nesting sites.

A tiny tiny bee, a specialist on Potentilla or Cinquefoil plants in North America. This one came from a colony I discovered in a dirt patch right in the front lawn of our laboratory. These sorts of bare dirt / clay / sand areas are often great bee nesting sites.

A tiny tiny bee, a specialist on Potentilla or Cinquefoil plants in North America. This one came from a colony I discovered in a dirt patch right in the front lawn of our laboratory. These sorts of bare dirt / clay / sand areas are often great bee nesting sites.

Undescribed Panurginus Species from Badlands National Park, South Dakota

Undescribed Panurginus Species from Badlands National Park

Undescribed Panurginus Species from Badlands National Park

One of the graciously metallic species of the subgenus Paracmaeodera found on flowers and bowl traps in Kruger National Park, South Africa. Photo by Anders Croft.

Paracolletes species, On and Off Bee, specimen collected in AustraliaThis species is unusually sexually dimorphic in color. The males are quite bright, as can be seen here, the females are what might be called the "null hypothesis" for bee coloration "“ brownish grey on the head and thorax with a black abdomen with white transverse hair bands.

Paracolletes species, On and Off Bee, specimen collected in AustraliaThis species is unusually sexually dimorphic in color. The males are quite bright, as can be seen here, the females are what might be called the "null hypothesis" for bee coloration "“ brownish grey on the head and thorax with a black abdomen with white transverse hair bands.