Anthidiini
Guides
Anthidiellum robertsoni
Anthidiellum robertsoni is a species of bee in the family Megachilidae, order Hymenoptera. It is a member of the tribe Anthidiini, commonly known as wool-carder bees or potter bees. The species was described by Cockerell in 1904. Like other members of its genus, it is likely a solitary bee that constructs nests using plant materials. The species occurs in North America.
Dianthidium
Pebble bees, resin bees
Dianthidium is a genus of solitary bees in the family Megachilidae, commonly known as pebble bees or resin bees. The genus comprises at least 20 described species in North America. These bees are distinguished by their use of plant resins in nest construction, gathering resins from various plant sources to build and seal their nest cells. They are cavity-nesting bees that utilize pre-existing hollows such as beetle borings in dead wood or hollow twigs. Dianthidium species are important pollinators and serve as hosts for parasitic wasps in the family Leucospidae.
Dianthidium curvatum curvatum
A subspecies of resin bee in the family Megachilidae, Dianthidium curvatum curvatum belongs to a genus of solitary bees known for constructing nests using plant resins. The species epithet "curvatum" refers to a curved structural feature, likely of the mandible or other mouthpart. As with other Dianthidium species, this bee is a cavity nester that provisions its cells with pollen and nectar.
Dianthidium curvatum sayi
Dianthidium curvatum sayi is a subspecies of resin bee in the family Megachilidae, described by Cockerell in 1907. As a member of the genus Dianthidium, it belongs to a group of bees known for constructing nests using plant resins and other materials rather than cutting leaves like their relatives in the genus Anthidium. The subspecies designation indicates geographic or morphological variation within the broader species D. curvatum.
Dianthidium pudicum consimile
Dianthidium pudicum consimile is a subspecies of resin bee in the family Megachilidae, first described by Ashmead in 1896. As a member of the genus Dianthidium, it is part of a group of solitary bees known for constructing nest partitions and plugs from plant resins. The subspecies occurs in Middle and North America, though specific details about its biology and distribution remain limited in available sources.
Dianthidium texanum
Texas Pebble Bee
Dianthidium texanum is a species of resin bee in the family Megachilidae, commonly known as the Texas Pebble Bee. Native to North and Middle America, this solitary bee constructs nests in pre-existing cavities such as hollow twigs or beetle borings, using resin to partition cells and seal the nest entrance. The species has been documented in bee block monitoring studies and is known to be parasitized by leucospid wasps. Adults are active during summer months and visit flowers for nectar and pollen.
Paranthidium jugatorium
Sunflower Burrowing-Resin bee
Paranthidium jugatorium is a resin bee in the family Megachilidae, commonly known as the Sunflower Burrowing-Resin bee. It is native to North and Central America, with records spanning from the southwestern United States through Mexico. The species belongs to the tribe Anthidiini, a group known for constructing nests using plant resins and other materials. Four subspecies are recognized, differing in geographic distribution and minor morphological traits.
Paranthidium jugatorium jugatorium
Paranthidium jugatorium jugatorium is a subspecies of resin bee in the family Megachilidae, distributed across northern and central Mexico. As a member of the tribe Anthidiini, it constructs nests using plant resins and other materials. The subspecies was originally described by Thomas Say in 1824. It belongs to a genus characterized by compact, often boldly patterned bees that are active primarily during warm seasons.
Paranthidium jugatorium perpictum
Paranthidium jugatorium perpictum is a subspecies of wool-carder bee in the family Megachilidae. It belongs to a genus of solitary bees known for collecting plant fibers to line their nest cells. The subspecies is endemic to central and northwestern Mexico. Like other members of Paranthidium, it is presumed to be a solitary nester, though specific biological details remain poorly documented.
Pseudoanthidium nanum nanum
Pseudoanthidium nanum nanum is a synonymized subspecies of the small mason bee Pseudoanthidium nanum (Mocsáry, 1880), originally described from Europe. The subspecific epithet has been synonymized under the nominate species, which is now treated as a single widespread taxon. The species belongs to the tribe Anthidiini (wool-carder and mason bees) within Megachilidae, characterized by their use of plant fibers or resin in nest construction.
Stelis
leach orchids
Stelis is a genus of Old World cleptoparasitic bees in the family Megachilidae, tribe Anthidiini. These bees are obligate cleptoparasites, meaning they do not construct their own nests but instead lay eggs in the nests of host bees, where their larvae consume the host's pollen provisions. The genus was established by Panzer in 1806 and contains multiple species distributed across Europe, Asia, and into the Arabian Peninsula. Some species have shown recent range expansions, with new country records continuing to be documented.
Stelis australis
Stelis australis is a species of cleptoparasitic bee in the family Megachilidae, described by Cresson in 1878. As a member of the genus Stelis, this species is a nest parasite of other solitary bees, particularly those in the family Megachilidae. The specific epithet 'australis' suggests a southern distribution, though detailed biological information remains limited. Like other Stelis species, females likely enter host nests to lay eggs in provisioned cells, with larvae consuming the host's pollen stores and sometimes the host egg or larva.
Trachusa
Trachusa is a genus of resin bees in the family Megachilidae, tribe Anthidiini, comprising at least 50 described species distributed across the Palearctic region. Recent taxonomic revisions have revealed extensive cryptic diversity, with several species complexes (e.g., T. interrupta and T. pubescens groups) resolved from formerly recognized single widespread species into multiple distinct, often allopatric or narrowly sympatric species. These bees are characterized by resin-collecting behavior and are classified as leafcutter, mason, and resin bees, though specific nesting biology is documented for few species.
Trachusa cordaticeps
Cordate-headed Resin-Leafcutter
Trachusa cordaticeps is a species of resin-leafcutter bee in the family Megachilidae, first described by Michener in 1949. It belongs to the tribe Anthidiini, which includes bees that construct nests using plant resins and leaf pieces. The species is distributed across Central and North America. Like other members of its genus, it likely nests in pre-existing cavities and uses resinous materials for cell construction.
Trachusa larreae
Trachusa larreae is a solitary bee in the family Megachilidae, tribe Anthidiini. It is an oligolectic specialist pollinator of Larrea tridentata (creosote bush), with documented nesting biology and immature stages. The species occurs in arid regions of North and Central America where its host plant is present.
Trachusa manni
Trachusa manni is a species of bee in the family Megachilidae, described by Crawford in 1918. It is a member of the tribe Anthidiini, commonly known as resin bees or wool carder bees. The species is found in North America. Like other members of its genus, it is a solitary bee that constructs nests using plant resins and other materials.
Trachusa timberlakei
Timberlake's Resin-Leafcutter
Trachusa timberlakei is a species of resin-leafcutter bee in the family Megachilidae. It is native to North America. The species was described by H.F. Schwarz in 1928 and is named after entomologist P.H. Timberlake. Like other members of the genus Trachusa, it constructs nests using resin and leaf fragments.