see the methodology used for arboreal dung beetles. Though not for pollinators,  use  flowers  or UV light as attractants instead of dung. Hope it works. 
Thomas K. Sabu and Sathiandran Nithya (2016): Comparison of the Arboreal Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae) of the Wet and Dry Forests of the Western Ghats, India. The Coleopterists Bulletin, 70(1): 1–5. 2016.


On 25 October 2016 at 12:04, James Harrison <[log in to unmask]> wrote:

Dear Scarab Workers,


We (KNP insect pollinator team) are compiling a short note on sampling beetles at high in African Savanna. Consequently, I’m looking for published records of this having been covered in the entomological literature and have found a few papers covering topics like “pole-bucket”, “pole-mounted”, “pole-pruners” and “vertical sampling pole”. Evidently, there is some literature in the Canadian / USA forest entomology circles where sampling at high using a long pole is mentioned, but I have not been able to trace this yet.


Anyway, if you have or are aware of any papers written on this topic please share them with the list and [log in to unmask] . I am suggesting the group as I imagine that this is a topic which would interest many other field biologists.


Many thanks in advance for all contributions, your own experiences with sampling from foot beetles / insects at height, and PDF’s where it is referred to! All contributors will be acknowledged in the paper!


Best regards



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Dr.Sabu K Thomas
Associate professor in Zoology,
St.Joseph's college, Devagiri Calicut-8, Kerala State, India.
PIN 673008