Ceylalictus Hainanicus
''Ceylalictus'' is a genus of bees belonging to the family Halictidae. Type species is , which was originally described as . The genus has almost cosmopolitan distribution (except America). Species: *''Ceylalictus aldabranus'' *''Ceylalictus appendiculatus'' *''Ceylalictus borneanus'' *''Ceylalictus capverdensis'' *''Ceylalictus celebensis'' *''Ceylalictus cereus'' *''Ceylalictus congoensis'' *''Ceylalictus dapitanellus'' *''Ceylalictus desertorum'' *''Ceylalictus formosicola'' *''Ceylalictus grandior'' *''Ceylalictus hainanicus'' *''Ceylalictus halictoides'' *''Ceylalictus hedickei'' *''Ceylalictus horni'' *''Ceylalictus inornatus'' *''Ceylalictus karachensis'' *''Ceylalictus madagassus'' *''Ceylalictus malayensis'' *''Ceylalictus muiri'' *''Ceylalictus nanensis'' *''Ceylalictus obscurus'' *''Ceylalictus perditellus'' *''Ceylalictus petiolatus'' *''Ceylalictus punjabensis'' *''Ceylalictus rostratus'' *''Ceylalictus seistanicus'' *''Ceylalictus sylvest ...
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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 them have yellow markings, especially the males, which commonly have yellow faces, a pattern widespread among the various families of bees. The family is one of many with short tongues and is best distinguished by the arcuate (strongly curved) basal vein found on the wing. Females in this family tend to be larger than the males. They are the group for which the term 'eusocial' was first coined b ...
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