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Definition: There are more than 200 species of solitary bee in Britain. They are so named because, unlike honeybees and bumblebees, they do not live in colonies.
Context: Mae pryfed peillio yn cynnwys gwenyn mêl, cacwn/gwenyn bwm a gwenyn unig eraill, rhai picwn/gwenyn meirch, gloÿnnod byw, gwyfynod a chlêr hofran, a rhai chwilod a chlêr/pryfaid.
