Halictus sp. “Sweat Bee” Halictidae on
Geranium viscosissimum “Sticky Geranium” Geraniaceae

Drinking Horse Mountain, Bozeman, MT
June 3, 2015
Robert Niese

Sticky Geranium, as its name would suggest, is covered in tiny glandular hairs that are quite sticky to the touch. Some have suggested that these sticky glands are capable of capturing and digesting small orgnanisms, making the plant slightly carnivorous. It grows in meadows, Ponderosa Pinelands, and at the edge of sagebrush-steppe habitats throughout the PNW. 

Halictus (Seladonia) tripartitus “Sweat Bee” Halictidae

Missoula, MT
May 13, 2014
Robert Niese

Another species of small Sweat Bee in the genus Halictus. If you’re interested in attempting to identify these bees with a dichotomous key (there are only 10 species in the Northwest, so it’s not too difficult!), check this one out here. Once you learn more about these little guys, you start noticing them everywhere!

Halictus ligatus “Sweat Bee” Halictidae on Aster (Asteraceae)

Missoula, MT
September 2, 2013
Robert Niese

Sweat Bees in the genus Halictus can be difficult to identify, but fortunately, as compared to other genera in our area (see Lasioglossum), there are relatively few species in the Northwest (10). If you’d like to take a shot at IDing your own photographs, check out this key to our species.

Halictus (Seladonia) tripartitus “Sweat Bee” Halictidae
on Balsamorhiza sagittata “Arrowleaf Balsamroot” Asteraceae

Missoula, MT
May 13, 2014
Robert Niese

Another species of small Sweat Bee in the genus Halictus. If you’re interested in attempting to identify these bees with a dichotomous key (there are only 10 species in the Northwest, so it’s not too difficult!), check this one out here. Once you learn more about these little guys, you start noticing them everywhere!