This guide is based upon collections made in 24 Portland-area gardens, each June, July, and August in 2017-2019. We collected Lasioglossum zephryum (Smith, 1853), but this species is not yet in the iNaturalist database. There are also 12 Lasioglossum, 16 Specodes, and 1 Stelis morphospecies ...more ↓
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 ...more ↓
Hylaeus modestus, known generally as the modest masked bee or yellow-faced bee, is a species of hymenopteran in the family Colletidae. It is found in North America.
Hylaeus punctatus, the punctate spatulate-masked bee, is a species of hymenopteran in the family Colletidae. It is found in North America.
Hylaeus mesillae, the mesilla masked bee, is a species of hymenopteran in the family Colletidae. It is found in Central America and North America.
Melissodes robustior, the robust long-horned bee, is a species of long-horned bee in the family Apidae. It is found in North America.
Melissodes rivalis is a species of long-horned bee in the family Apidae. It is found in North America.
Bombus appositus is a species of bumblebee known commonly as the white-shouldered bumblebee. It is native to western North America, including western Canada and the western United States.
Bombus nevadensis, the Nevada bumblebee, is a species of bumblebee. It is native to North America, where it occurs from Alaska to California in the west, and east to Wisconsin, and in Arizona, New Mexico, and Mexico.
Bombus griseocollis is a species of bumblebee known commonly as the brown-belted bumblebee. It is native to much of the United States except for the Southwest, and to the southernmost regions of several of the provinces of Canada.
Bombus caliginosus, the obscure bumblebee, is a species of bumblebee native to the West Coast of the United States, where its distribution extends from Washington through Oregon to Southern California, as far south as the San Jacinto Mountains.
Bombus flavifrons, the yellow-fronted bumble bee or yellowhead bumblebee, is a species of bumblebee. It is native to North America, where it is distributed across much of Canada, Alaska, and the western contiguous United States.
Bombus melanopygus, the black-tailed bumble bee, black tail bumble bee or orange-rumped bumblebee, is a species of bumblebee. It is native to western North America from British Columbia to California, and as far east as Idaho.
Bombus mixtus is a species of bumblebee. It is native to western North America, where it occurs in western Canada and the United States. It is also disjunct in the Great Lakes region. It is known commonly as the fuzzy-horned bumblebee, tricoloured bumblebee, orange-belted bumblebee, and mixed bumblebee.
Bombus vosnesenskii, the yellow-faced bumblebee, is a species of bumblebee native to the west coast of North America, where it is distributed from British Columbia to Baja California. It is the most abundant species of bee in this range, and can be found in both urban and agricultural areas. Additionally, B. vosnesenskii is utilized as an important pollinator in ...more ↓
The western honey bee or European honey bee (Apis mellifera) is the most common of the 7–12 species of honey bee worldwide. The genus name Apis is Latin for "bee", and mellifera is the Latin for "honey-bearing", referring to the species' production of honey for the winter.
Agapostemon texanus, also known as the green sweat bee, is a bee found in North America.
Agapostemon virescens, the bicolored striped-sweat bee, is a species of sweat bee in the family Halictidae. It is found in North America.
Halictus confusus, the southern bronze furrow bee, is a species of sweat bee in the family Halictidae.
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 ...more ↓
Halictus rubicundus is a species of sweat bee found throughout the Northern Hemisphere. H. rubicundus was introduced into North America from the Old World during one of two main invasions of Halictus subgenera. These invasions likely occurred via the Bering land bridge at times of low sea level during the Pleistocene epoch.
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 ...more ↓
Lasioglossum titusi, the Titus' lasioglossum, is a species of sweat bee in the family Halictidae.
Heriades carinata is a species of hymenopteran in the family Megachilidae.
Protosmia rubifloris is a species of hymenopteran in the family Megachilidae. It is found in Central America and North America.
Stelis laticincta is a species of bee in the family Megachilidae. It is found in North America.
Anthidium manicatum, commonly called the European wool carder bee, is a species of bee in the family Megachilidae, the leaf-cutter bees or mason bees.
Anthidium oblongatum is a species of bee in the family Megachilidae, the leaf-cutter, carder, or mason bees.
Megachile fidelis, the faithful leafcutting bee, is a species of bee in the Megachile genus.
Megachile apicalis is a species of bee in the family Megachilidae. It was described by Spinola in 1808.
Megachile rotundata, the alfalfa leafcutter bee or leafcutter bee is a European bee that has been introduced to various regions around the world. As a solitary bee species, it does not build colonies or store honey, but is a very efficient pollinator of alfalfa, carrots, other vegetables and some fruits. Because of this, farmers often use M. rotundata as a ...more ↓
Megachile perihirta, commonly known as the Western leafcutting bee, is a bee in the genus Megachile. The bee is native to western North America, ranging from Nebraska to Texas and Mexico, west to California, and north to British Columbia and Alberta, and often inhabits meadows and orchards. The bee is black with long whitish-yellow hair, more so below the thorax ...more ↓
Megachile centuncularis, commonly known as the patchwork leafcutter bee, is a species of bee in the family Megachilidae. It was first described by the Swedish naturalist Carl Linnaeus in 1758.
Andrena crataegi is a species in the family Andrenidae ("mining bees"), in the order Hymenoptera ("ants, bees, wasps and sawflies"). The species is known generally as the "hawthorn andrena". It is found in North America.
Andrena nigrocaerulea, the blue-and-black andrena, is a species of mining bee in the family Andrenidae. It is found in North America.