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Solitary bees tend to be gregarious and often several nests of solitary bees are near each other. In solitary nesting, the founding bee forages, builds cells, lays the eggs, and guards. Normally, only one generation of bees live in the nest. [9] Xylocopa pubescens is one carpenter bee species that can have both social and solitary nests. [9]
The broad-handed carpenter bee is a very large, robust, solitary bee. It is shiny, fully black in colour with fuscous metallic blue-green or purple wings in sunlight. The broad-handed carpenter bee is among the largest Xylocopa known and among the largest bees of the world (though it is not the world's largest, that title belongs to another ...
Female carpenter bees have bigger heads than males with more narrow heads. [7] The California carpenter bee is all black, with bluish/greenish reflections. The males typically have at least a few light hairs on the pronotum (dorsal prothorax ) and the abdominal segments. [ 8 ]
The bee is similar in size to bumblebees, but has a glossy, mostly black body with a slight metallic purple tint. [4] X. virginica males and females have generally the same mass, but can be differentiated visually by the male's longer body and the female's wider head. The males also have a white spot on their face.
When viewed from a distance, they appear blackish or rich dark brown. They are large for honey bees though they have unusually short tongues (5.7–6.4 mm (0.22–0.25 in)). [9] Their common name (dark or black bee) is derived from their brown-black color, with only a few lighter yellow spots on the abdomen. [10]
The range of Xylocopa violacea extends from Europe eastward across Asia as far as central China, restricted to latitudes above 30 degrees.In India, any all-black species of Xylocopa are referred to by the common name " bhanvra" (or "bhomora" - ভোমোৰা - in Assamese), and reports and sightings of bhanvra are commonly misattributed to this species; however, this species is found only ...
Xylocopa sonorina, the valley carpenter bee or Hawaiian carpenter bee, [2] is a species of carpenter bee found from western Texas to northern California, [3] and the eastern Pacific islands. [4] Females are black while males are golden-brown with green eyes.
The exoskeleton of Osmia nigriventris is entirely black with no metallic reflections. 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]