Summer Garden Bees of Portland

Lasioglossum zephyrus is a sweat bee of the family Halictidae, found in the U.S. and Canada. It appears in the literature primarily under the misspelling "zephyrum". It is considered a primitively eusocial bee (meaning that they do not have a permanent division of labor within colonies), although it may be facultatively solitary (i.e., displaying both solitary and eusocial behaviors). The species nests in underground burrows and has been observed forcing open unbloomed flower less ↑

Halictus ligatus is a species of sweat bee from the family Halictidae, characterized by those bees that mine or burrow into the ground to create their nests. Moreover, As a member of the Halictidae, H. ligatus is commonly categorized a sweat bee due to its attraction to the salts of human perspiration. H. ligatus, like Lasioglossum zephyrum, is a primitively eusocial bee species, for which aggression is one of the most influential behavioral attitudes for less ↑

Lasioglossum cressonii (Robertson, 1890) are part of the genus sweat bees Lasioglossum that come from a diverse subfamily Halictidae. Halictidae exhibit eusocial hierarchy behavior which is interesting given that eusociality in this group is hard to evolve and easy to lose. L. cressonii is found throughout North America. Their diversity makes them a difficult bee to study and there is a bit of dispute over how many subgenera exist. L. cressonii have been shown to be... less ↑