Andrena cineraria
https://www.commanster.eu/commanster/Insects/Bees/SpBees/Andrena.cineraria.html
https://www.neilwilmore.co.uk/solitarybees.html
Andrena minutula
https://www.commanster.eu/commanster/Insects/Bees/SpBees/Andrena.minutula.html
Andrena ferrugineicrus
https://www.flickr.com/photos/14260865@N07/4552465418/
https://t2.gstatic.com/images?q=tbn:ANd9GcQjk69GyGbeTYwcLFmW3WFMW2_iIYK2K6gPgaZdbgEqJlZ1-j-m7A
https://farm4.static.flickr.com/3189/4552465418_682e50ff21.jpg
Andrena nigroolivacea
https://www.flickr.com/photos/90408805@N00/429418436/in/photostream/
https://www.wildebijen.nl/zwartbronzenzandbij.jpg
https://www.gardensafari.net/pics/wespen/zandbijen/andrena_nigroaenea_hax_xxxx.jpg
Andrena semilaevis
https://farm4.static.flickr.com/3350/3297355575_f052970369.jpg
Andrena flavipes
https://www.bwars.com/imagesbwars/Gallery/Camerar/Andrena%20flavipes%20prob.jpg
Lasioglossum puncticolle
https://l.yimg.com/g/images/spaceball.gif
