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USGS Bee Lab at the Eastern Ecological Science Center images.

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Hylaeus verticalis, f, face, NY, Esker Fen
Hylaeus verticalis, f, face, NY, Esker Fen
Hylaeus verticalis, f, face, NY, Esker Fen

Here is a series of 6 shots of Hylaeus verticalis, 3 male, 3 female. A northern and mountain bee throughout North America. One of a bunch of different Masked Bees that lurk around the continent. Photos by Sue Boo and Brooke Alexander.

Here is a series of 6 shots of Hylaeus verticalis, 3 male, 3 female. A northern and mountain bee throughout North America. One of a bunch of different Masked Bees that lurk around the continent. Photos by Sue Boo and Brooke Alexander.

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Hylaeus Volatilis, M, Side 2, Maui Co, Hawaii
Hylaeus Volatilis, M, Side 2, Maui Co, Hawaii
Hylaeus Volatilis, M, Side 2, Maui Co, Hawaii

A native Hawaiian. This species of Hawaiian bee, Hylaeus volatilis, is in the only group of truly native Hawaiian bees, all of which descended from perhaps a single colonization event of a long ago masked bee (Hylaeus) which evolved to become many different species across the island chain, forming partnerships with the native Hawaiian plants.

A native Hawaiian. This species of Hawaiian bee, Hylaeus volatilis, is in the only group of truly native Hawaiian bees, all of which descended from perhaps a single colonization event of a long ago masked bee (Hylaeus) which evolved to become many different species across the island chain, forming partnerships with the native Hawaiian plants.

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Hylaeus volatilis, Male, Side, Hi, Maui Co
Hylaeus volatilis, Male, Side, Hi, Maui Co
Hylaeus volatilis, Male, Side, Hi, Maui Co

Hylaeus volatilis - A native species of Hawaiian bee found at mid elevations on East Maui. This species is particularly interesting in that it is a nest parasite of other native Hylaeus species

Hylaeus volatilis - A native species of Hawaiian bee found at mid elevations on East Maui. This species is particularly interesting in that it is a nest parasite of other native Hylaeus species

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Hypericum hypericoides, St. Andrews Cross, Howard County, MD
Hypericum hypericoides, St. Andrews Cross, Howard County, MD
Hypericum hypericoides, St. Andrews Cross, Howard County, MD

Always a bit floppy, this is St. Andrew's Cross a small bushy thing with long odd petals.....I will admit to knowing little about the plant. Pictures and plant collection by Helen Lowe Metzman.

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Hoplitis pilosifrons, female, face
Hoplitis pilosifrons, female, face
Hoplitis pilosifrons, female, face

Hoplitis pilosifrons. Oft overlooked. This species is relatively common occurring in almost any substantive collection of bees from a region or location anywhere East of the Rockies. It has the bad habit of being bland in its characters and often leads to misidentifications.

Hoplitis pilosifrons. Oft overlooked. This species is relatively common occurring in almost any substantive collection of bees from a region or location anywhere East of the Rockies. It has the bad habit of being bland in its characters and often leads to misidentifications.

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Hoplitis simplex, m, face, Charles Co, MD
Hoplitis simplex, m, face, Charles Co, MD
Hoplitis simplex, m, face, Charles Co, MD

A small, hole nesting bee, collected in Charles County Maryland, Hoplitis simplex is uncommonly found and is a specialist on the plant genus Phacelia. Bee specialists such as this little Hoplitis are fundamentally linked to the world's plant biodiversity...not Phacelia...no H. simplex. Photograph by Hannah Sutton.

A small, hole nesting bee, collected in Charles County Maryland, Hoplitis simplex is uncommonly found and is a specialist on the plant genus Phacelia. Bee specialists such as this little Hoplitis are fundamentally linked to the world's plant biodiversity...not Phacelia...no H. simplex. Photograph by Hannah Sutton.

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Hoplitis spoliata, f, back, Kent County MD
Hoplitis spoliata, f, back, Kent County MD
Hoplitis spoliata, f, back, Kent County MD

A large Hoplitis, that occurs throughout most of North America East of the Rockies. Occurs in low numbers at most locations, in the Mid-Atlantic is is a June bee and associated with what would appear to be mostly Woody blooming plants. Something to consider in your planting pollinator plans... don't forget the blooming shrubs and small trees.

A large Hoplitis, that occurs throughout most of North America East of the Rockies. Occurs in low numbers at most locations, in the Mid-Atlantic is is a June bee and associated with what would appear to be mostly Woody blooming plants. Something to consider in your planting pollinator plans... don't forget the blooming shrubs and small trees.

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Hoplitis spoliata, male, side, NY, Franklin Co
Hoplitis spoliata, male, side, NY, Franklin Co
Hoplitis spoliata, male, side, NY, Franklin Co

Sometimes male bees depart from the standard antennae shapes for some sort of new performance specs. No body seems to be studying why this might be, but there is substantive research on how incredible antennae can be at detecting just a few molecules.

Sometimes male bees depart from the standard antennae shapes for some sort of new performance specs. No body seems to be studying why this might be, but there is substantive research on how incredible antennae can be at detecting just a few molecules.

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Hoplitis tigrina, M, Back, Greece, Aegean Islands, Lesvos, Sisil
Hoplitis tigrina, M, Back, Greece, Aegean Islands, Lesvos, Sisil
Hoplitis tigrina, M, Back, Greece, Aegean Islands, Lesvos, Sisil

Aegean islands...have this lovely bee Jelle Devalez (the finder of this bee) writes: "Hoplitis tigrina: one of the largest species of Hoplitis usually found on large purple thistles." And so we must love purple thistles.

Aegean islands...have this lovely bee Jelle Devalez (the finder of this bee) writes: "Hoplitis tigrina: one of the largest species of Hoplitis usually found on large purple thistles." And so we must love purple thistles.

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Houstonia caerulaea, Common Bluets, Howard County, Md,
Houstonia caerulaea, Common Bluets, Howard County, Md,
Houstonia caerulaea, Common Bluets, Howard County, Md,

Bluets, or Quaker Ladies. Their delicate loveliness does not quite shouw up in these pictures...forming little clumps in poor soils and a part of spring I wait for each year. Specimen and photos from Helen Low Metzman.

Bluets, or Quaker Ladies. Their delicate loveliness does not quite shouw up in these pictures...forming little clumps in poor soils and a part of spring I wait for each year. Specimen and photos from Helen Low Metzman.

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Hylaeus basalis, face
Hylaeus basalis, face
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Hylaeus floridanus, M, face, Moore Co., N. Carolina
Hylaeus floridanus, M, face, Moore Co., N. Carolina
Hylaeus floridanus, M, face, Moore Co., N. Carolina

In rough translation this would be the "Florida Masked Bee." Tiny, grain of rice things, and usually mistaken for wasps as they carry their pollen internally rather than in their body hairs like other bees. Thus they have reverted to the wasp shape from whence bees came.

In rough translation this would be the "Florida Masked Bee." Tiny, grain of rice things, and usually mistaken for wasps as they carry their pollen internally rather than in their body hairs like other bees. Thus they have reverted to the wasp shape from whence bees came.

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Hylaeus leptocephalus, f, face, Dorchester Co, MD
Hylaeus leptocephalus, f, face, Dorchester Co, MD
Hylaeus leptocephalus, f, face, Dorchester Co, MD

For some reason this species, Hylaeus leptocephalus, one of the masked bees, is one of the first non-native bees ever detected in the Americas. Oddly, it was first detected in the Dakotas around 1900. There must be a good story there, but we don't know what it is.... Reasonably common now, but mostly in disturbed, urban environments.

For some reason this species, Hylaeus leptocephalus, one of the masked bees, is one of the first non-native bees ever detected in the Americas. Oddly, it was first detected in the Dakotas around 1900. There must be a good story there, but we don't know what it is.... Reasonably common now, but mostly in disturbed, urban environments.

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Hylaeus modestus, M, Face, VA, Wolftrap
Hylaeus modestus, M, Face, VA, Wolftrap
Hylaeus modestus, M, Face, VA, Wolftrap

A male Hylaeus modestus, a masked bee found in the new gardens of Wolf Trap National Park for the Performing Arts

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Hylaeus pictipes, f, back, Crawford Co., PA
Hylaeus pictipes, f, back, Crawford Co., PA
Hylaeus pictipes, f, back, Crawford Co., PA

Colors. You know, bees are so interesting sometimes. Here is Hylaeus pictipes. Jason Gibbs found this species up in Ontario, Canada where it did not belong since it is a bee of the Old World.

Colors. You know, bees are so interesting sometimes. Here is Hylaeus pictipes. Jason Gibbs found this species up in Ontario, Canada where it did not belong since it is a bee of the Old World.

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Hylaeus pictipes, m,wingfake2 side, Crawford Co., PA
Hylaeus pictipes, m,wingfake2 side, Crawford Co., PA
Hylaeus pictipes, m,wingfake2 side, Crawford Co., PA

Colors. You know, bees are so interesting sometimes. Here is Hylaeus pictipes. Jason Gibbs found this species up in Ontario, Canada where it did not belong since it is a bee of the Old World.

Colors. You know, bees are so interesting sometimes. Here is Hylaeus pictipes. Jason Gibbs found this species up in Ontario, Canada where it did not belong since it is a bee of the Old World.

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Hylaeus schwarzii, F, Back, MD, Dorchester County
Hylaeus schwarzii, F, Back, MD, Dorchester County
Hylaeus schwarzii, F, Back, MD, Dorchester County

From Blackwater National Wildlife Refuge on the Eastern Shore of Maryland...a Hylaeus associated with coastal marshes. Hylaeus schwarzii. Near the marshes, but not usually found in them. Mysterious. Photography by Ashleigh Jacobs.

From Blackwater National Wildlife Refuge on the Eastern Shore of Maryland...a Hylaeus associated with coastal marshes. Hylaeus schwarzii. Near the marshes, but not usually found in them. Mysterious. Photography by Ashleigh Jacobs.

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