Images

A little series of pictures of Colletes robertsonii from the Sandhills of Nebraska...Hooker county. A Midwestern species, this male and female were found in a nice patch of flowers along the road in a small pull off. Lovely country...the Sandhills. Photos by Erick Hernandez.

A little series of pictures of Colletes robertsonii from the Sandhills of Nebraska...Hooker county. A Midwestern species, this male and female were found in a nice patch of flowers along the road in a small pull off. Lovely country...the Sandhills. Photos by Erick Hernandez.

Colletes thoracicus. One of the cellophane bees. Aggregates in large numbers in loose soil or cliff faces. Photographer is Greta Forbes.

A blueberry specialist. Look how long that face is...The space between the mandible and the eye is what bee heads often use to separate species. This Colletes validus has a huggggggeeee malar space...other Colletes species essentially have none, the mandible being directly at the base of the eye. Why?

Look at the veryyyyyyy long distance from the bottom of the compound eye to the mandible base (technically this is called the malar space). Few bees show this long a head and it is nearly distinctive within Colletes at least in the north. This is a species that likes to hang out around blueberries and other Vaccinium type things.

Bedraggled Bee. We picture here Colletes willistoni, with mussy hair, something Colletes is prone to. For me this is mostly irritating, in that they don't clean up well for their pictures, for the bees, well, its hard to say, they are an old lineage and apparently great looking hair under all conditions was not their evolutionary priority.

Badlands National Park

South Carolina

Interesting and very uncommon bee. Meet Coelioxys banksi. I have only seen a couple, both from NJ, I think. What bee is their host? There are specimens from the East Coast and from the West with a hiatus in the middle. Are they different species or are we simply lousy at finding them? What ever is going on , a pretty slick looking bee.

A lovely Coelioxys from Argentina...note the hair emerging from the eyeballs..one of the few groups of bee species to have this characteristic. (honey bees being the most famous hairy eyeball bees). A nest parasite of Megachile, this female is typical in shape of the abdomen, long and sharp designed to insert eggs into the walls of the other bee's nests.

Coelioxys coturnix, male, Cumberland, July 2012, Maryland

Coelioxys coturnix, male, Cumberland, July 2012, Maryland

First Maryland state record for this species as represented by this male from Eastern Neck National Wildlife Refuge on a wee island in the Chesapeake Bay. As a Coelioxys it is going to be a nest parasite of Megachile...in this case it is going after Megachile petulans....a species with a more southern distribution.

First Maryland state record for this species as represented by this male from Eastern Neck National Wildlife Refuge on a wee island in the Chesapeake Bay. As a Coelioxys it is going to be a nest parasite of Megachile...in this case it is going after Megachile petulans....a species with a more southern distribution.

Coelioxys hunteri, male, a bee that is a nest parasite of leaf cutting bees. This is just the specialized and distinctive end of this lovely bee. Jones County Georgia, obtained form the USFS Experiment Station...

I think this was the first confirmed state record (Maryland) for this species (Coelioxys immaculata). It was found in Caroline County in a sandy area. Not clear what it is a nest parasite of (almost certainly a Megachile). Something for someone to do....good amateur project. Picture by Amanda Hong.

Coelioxys....invader of Megachile nests. This female is designed to slice into Meg nests and insert and egg which later will kill the baby leaf cutter and consume the food. This one is from the Southwest, Coelioxys novomexicana. This bee was collected in the California Central Valley in Yolo County for research on small-scale restoration in agricultural areas.

A nest parasite, this time a male. Coelioxys octodentata is a counterpart to the more commonly found C. sayi. I associate this species with drier and perhaps sandier locations, perhaps as the nest parasite of things like Megachile brevis. Note the characteristic teeth sticking out of the rear of this bee.

A nest parasite, this time a male. Coelioxys octodentata is a counterpart to the more commonly found C. sayi. I associate this species with drier and perhaps sandier locations, perhaps as the nest parasite of things like Megachile brevis. Note the characteristic teeth sticking out of the rear of this bee.

An invader of other bees nests, this is Coelioxys porterae, found, in this case from Acadia National Park in Maine. I can't recall which species of Megachile (leaf cutting bees) this species parasitizes us but there are plenty of options in the park. This is a male, and as with almost all males it has all kinds of pointy projections on its rear end.

Ivy specialist! 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.