I found another mining bee aggregation! I’ve lost track of how many bee aggregations I’ve found this spring, which is a good place to be in, in my humble opinion. This is the largest aggregation I’ve seen in Ireland. It’s on a university campus in south Dublin, and again people walk past on both sides without noticing the hundreds of mining bees flying around. I think the cuckoo bee here is Nomada goodeniana, and the bulk of the aggregation is Andrena nigroaenea (the buffish mining bee). However, I did see some ashy mining bees too, so it’s a multispecies aggregation.
Mid flight photo
You can see how many bees there are!
I think the cuckoo bee is Nomada goodeniana (it has this frowny face on the back of the scutellum)
These mining bees are honeybee sized…I suspect the bright orange pollen is the horse chestnut
Mid-flight confrontation between the cuckoo bee and mining bees, you can also see the size difference
They’re cute though!
Not as cute as the mining bees, maybe
Harrumph! Well, tell us how you really feel!
High nest density
The only blurry evidence I have that the ashy mining bees were also present