Halictidae

Halictidae is the second-largest family of bees (clade Anthophila) with nearly 4,500 species. They are commonly called sweat bees (especially the smaller species), as they are often attracted to perspiration. Halictid species are an extremely diverse group that can vary greatly in appearance. These bees occur all over the world and are found on every continent except Antarctica. Usually dark-colored (frequently brown or black) and often metallic, halictids are found in various sizes, colors and patterns. Several species are all or partly green and a few are red, purple, or blue. A number of th

Sphecodes is a genus of cuckoo bees from the family Halictidae, the majority of which are black and red in colour and are colloquially known as blood bees. Sphecodes bees are kleptoparasitic on ground-nesting bees, especially bees in the genera Lasioglossum, Halictus and Andrena. The adults consume nectar, but because they use other bees' provisions to feed their offspring they do not collect pollen.

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Dufourea is a genus of sweat bees in the family Halictidae. There are at least 160 described species in Dufourea. The bees are very uncommon. The bases of their antennae are well below the middle of their face and are only separated from the clypeus on the bottom of the face by not much more than the diameter of an antennal socket. The clypeus is short and wide, and the labrum is nearly as long as the clypeus. The species features a pre-episternal groove. thumb|Dufourea maura

Augochloropsis is a genus of brilliant metallic, often blue-green, sweat bees in the family Halictidae. There are at least 140 described species in Augochloropsis.

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Augochlora is a genus in the family Halictidae, with 127 valid species found across the Nearctic and Neotropic zones. The genus is known for its typical metallic greenish blue color and small size, with the greek for Augochloros meaning shining green.

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The genus Systropha comprises several species of Old World sweat bees, primarily specialist pollinators of plants in the genus Convolvulus. Males of the genus have unusual curled antennae, and females have pollen-carrying hairs covering almost the entire abdomen.

Within the insect order Hymenoptera, the Halictinae are the largest, most diverse, and most recently diverged of the four halictid subfamilies. They comprise over 2400 bee species belonging to the five taxonomic tribes Augochlorini, Thrinchostomini, Caenohalictini, Sphecodini, and Halictini, which some entomologists alternatively organize into the two tribes Augochlorini and Halictini.

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Neocorynura is a genus of bees belonging to the family Halictidae.

Megalopta is a widespread neotropical genus of bees in the tribe Augochlorini in family Halictidae, known as the sweat bees. They are the largest of the five nocturnal genera in Augochlorini. Most have pale integumentary pigmentation, and all have large ocelli, most likely a feature of their nocturnal behavior. They live in tropical Central America and the entirety of South America. The subgenus Noctoraptor is cleptoparasitic. They are not known from the fossil record.

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Rophites is a genus of bees belonging to the family Halictidae.

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Lipotriches is a large genus of sweat bees in the family Halictidae, distributed widely throughout the Eastern Hemisphere though absent from Europe. There are nearly 200 species in 9 subgenera. They commonly have prominent bands of hair on the margins of the metasomal segments.

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Augochlorella is a genus in the bee family Halictidae, commonly called sweat bees. They display metallic coloration, ranging from reddish to gold to bluish green, as is typical for other genera in the tribe Augochlorini.

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Temnosoma is a genus of bees belonging to the family Halictidae.

Corynura is a genus of bees belonging to the family Halictidae.

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Ceylalictus is a genus of bees belonging to the family Halictidae. Type species is , which was originally described as .

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Chlerogas is a genus of bees belonging to the family Halictidae.

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Ischnomelissa is a genus of bees belonging to the family Halictidae.

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Megaloptidia is a genus of bees belonging to the family Halictidae.

Megommation is a genus of bees belonging to the family Halictidae.

Patellapis is a genus of bees belonging to the family Halictidae.

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thumb|An unidentified Nomioides specimen Nomioides is a genus of bees belonging to the family Halictidae. Bees in this genus are very small and are colored black and yellow. == Species == Species in the genus include:

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