Buffish Mining Bee
11 April 2019.
Andrena nigroaenea - Buffish Mining Bee. Not mining but basking.[/caption]
A. nigroaenea is one of the first to emerge in spring and can be seen on the wing from March onwards. However, there have been reports of newly emerged individual in July. This may be an indication of a second generation, but the jury remains out on whether this is due to climate change and more prolonged summer temperatures (BWARS).
|Andrena nigroaenea distribution map |
Orchids not withstanding, A.nigroaenea is a common and widespread bee in the UK, and does not appear to be under threat. Like other Andrena, Buffy is a solitary bee and nests as a singly Nesting or large aggregations, often mixed with other Andrena species. The nest can be April-wpcm below ground with 2 or 3 cells in each nest. When the female is out foraging th nest is left open, but when foraging flights are finished or if it’s raining the Burrows are closed to protect the eggs. Like many bees, Buffy is a target of cleptoparasite, and there are two that have been recorded Nomada goodeniana and Nomada lathburiana. I was able to photograph N.goodeniana on Skomer Island a couple of years back.
[caption id="attachment_1371" align="alignnone" width="800"]Nomada goodeniana - on Skomer Island in 2016
Andrena nigroaenea. BWARS. http://www.bwars.com/bee/andrenidae/andrena-cineraria. Accessed 25.04.2019
Hutchings, M. J., Robbirt, K. M., Roberts, D. L., & Davy, A. J. (2018). Vulnerability of a specialized pollination mechanism to climate change revealed by a 356-year analysis. Botanical Journal of the Linnean Society. https://doi.org/10.1093/botlinnean/box086
11 April 2019