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Mason bee is a name now commonly used for species of bees in the genus Osmia, of the family Megachilidae. Mason bees are named for their habit of using mud or other "masonry" products in constructing their nests , which are made in naturally occurring gaps such as between cracks in stones or other small dark cavities.
Red mason bees are excellent pollinators, particularly of apple trees. [3] For effective use of these bees as pollinators of winter rape plantations in Poland, they should be located at least 300 m from entomophilous plants, which distract the bees from pollinating the plants of interest.
Osmia lignaria, commonly known as the orchard mason bee or blue orchard bee, [1] is a megachilid bee that makes nests in natural holes and reeds, creating individual cells for its brood that are separated by mud dividers.
Osmia spinulosa is distributed from the Spanish foothills of the Pyrenees across Europe, Asia Minor, Caucasus and western Central Asia to the Central Siberian mountains (Tomsk, Kemerovo, Altai Republic); north to South Wales and Central England, in Scandinavia to 60 ° N in Norway and Sweden, in Russia to Kirov and Perm; south to Sicily and southern Bulgaria.
The bees body length can range from 10 - 14 mm long. [3] Females possess a strongly thickened clypeal margin [4] and lightly infuscated wings. [5] Males however possess reflexed apicolateral angles of the 5th and 6th tergal segments [4] and subhyaline wings. [5] Both male and female bees have whitish-pale pubescence over the head, thorax and ...
A leaf-cutter bee showing abdominal scopa. Megachilidae is a cosmopolitan family of mostly solitary bees.Characteristic traits of this family are the restriction of their pollen-carrying structure (called a scopa) to the ventral surface of the abdomen (rather than mostly or exclusively on the hind legs as in other bee families), and their typically elongated labrum. [1]
Osmia caerulescens, the blue mason bee, is a species of solitary bee from the family Megachilidae. [1] It has a Holarctic distribution extending into the Indomalayan region, although its presence in the Nearctic may be due to human-assisted introduction.
Osmia xanthomelana, the large mason bee, is a species of mason bee in the genus Osmia.It has a wide distribution in the Palearctic but it is rare wherever it occurs and, for example, in Great Britain it has a highly restricted distribution, although in the past it was a little more widespread there.