Images

Bombus ashtoni! This is news. This species of bumble bee is nest parasite. They take over the nests of other bumble bees and use the host's workers to produce their progeny. This one is special because its known hosts are B. affinis (the endangered Rusty-patched Bumble Bee) and B.

Bombus ashtoni! This is news. This species of bumble bee is nest parasite. They take over the nests of other bumble bees and use the host's workers to produce their progeny. This one is special because its known hosts are B. affinis (the endangered Rusty-patched Bumble Bee) and B.

There are a lot of bumble bee species out there, about 50 species or so north of Mexico. Some arguments regarding species boundaries, but, bottomline is there are more than most people would suppose. Here is Bombus bifarius. Another common western bee, one a bit more likely to nest above ground than some of the others....sometimes even showing up in bird houses.

Bee of Yosemite. This is Bombus bifarius, a male (see all the yellow on the face shot? that is a good indication of a male bumble bee....not all species show this pattern, but it is a general trend. Females tend to have a nearly all black face with perhaps a topknot of yellow hairs, but I digress).

There are a lot of bumble bee species out there, about 50 species or so north of Mexico. Some arguments regarding species boundaries, but, bottomline is there are more than most people would suppose. Here is Bombus bifarius. Another common western bee, one a bit more likely to nest above ground than some of the others....sometimes even showing up in bird houses.

Not all bumblebees gather pollen. Some, like this Bombus citrinus, take over the nests of other bumblebee species and use their workers to provision the nests of their young.

Not all bumblebees gather pollen. Some, like this Bombus citrinus, take over the nests of other bumblebee species and use their workers to provision the nests of their young.

Power...This is Bombus citrinus, a female just emerged from where she hibernated overwinter and looking for the new nests of a queen bumblebee, note the sting on the prominent tail end of this bee, she uses that to eliminate or paralyze the female of another bumblebee, taking over the nest and essentially enslaving the daughters of the queen to now raise her young.

A somewhat bedraggled Bombus crotchii from Yolo County, California..."This bee was collected in the California Central Valley in Yolo County for research on small-scale restoration in agricultural areas. Claire Kremen's 10-year study of hedgerows shows the benefits of planting native shrubs and forbs in agricultural areas for native bees.

This is the main orange butted Bumblebee of the East. Bombus ternarius. It can be very common in places like the Adirondacks where this one was collected, but occurs throughout a wide range of the Upper Midwest to New England and throughout southern Quebec and Ontario in our gardens and fields.

Bombus terrestris - A domesticated bee. Widely used in agriculture in green house pollination as well as in the field. Also one that has been introduced into several parts of the world... Causing major problems in South America where some combination of competition and disease harms the native bumble bees.

Bombus terrestris - A domesticated bee. Widely used in agriculture in green house pollination as well as in the field. Also one that has been introduced into several parts of the world... Causing major problems in South America where some combination of competition and disease harms the native bumble bees.

One of the species of bumble bees that have declined since the introduction of the pathogen Nosema bombi, but there are some suggestions that populations have managed to survive or increase a bit ,,,this one, captured by Laura Russo is at the southern edge of its range and a good sign for retention. Photograph by Greta Forbes.

Bombus variabilis, male, St. Mary's County, Maryland, Nest parasite, now extremely rare

Bombus variabilis, male, St. Mary's County, Maryland, Nest parasite, now extremely rare

More black bumble bees from Yosemite National Park. Here is the male of Bombus vosnesenskii. This species was described by the relatively prolific Polish Taxonomist Oktawiusz Wincenty Bourmeister-Radoszkowski who pumped out a great many new descriptions of bees in many parts of the world.

Bombus occidentalis, female, Wyoming, Yellowstone National Park

Bombus terricola, New State record for Maryland, Garrett County

A bit bedragled specimen of the bumble bee B. melanopygus from Yosemite National Park. We weren't quite up to speed on our hair dressing when we prepped this specimen. Part of Claire Kremen's study of the bees of the park. Photo by Anders Croft.

If you were in the Badlands of South Dakota in the Summer, and were paying attention to your bumblebees, you would see this one. Bombus nevadensis. It is big and the queens are extra beefy. This is one of the dark bumbles. More black on the sides of the body and tinted wings.

For some reason I have not put up a Bombus perplexus shot yet. Here is one that Wayne Boo did a couple of years ago and I am just now getting around to shopping. 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.