Distinguishing Bombus impatiens, bimaculatus, & griseocollis

This is the second part of the ID-a-thon bee presentation. Re-done in google slides, looks a lot better, will update the others in the series in this format.

https://docs.google.com/presentation/d/e/2PACX-1vT2UqSdUlvPwqhp_XhDGNxlKUnnVxvyBkK_zKEIs7yTIK00zuhQ--voesFaIpBXK_ae_034RWSkdQE0/pub?start=false&loop=false&delayms=60000

Posted on Μάιος 20, 2021 0151 ΠΜ by neylon neylon

Σχόλια

Thank you! This level of detail is so helpful.

Αναρτήθηκε από sarahwilson1 περίπου 3 χρόνια πριν

Thanks for checking it out.
I just noticed that google drive screwed up the layout I had, I'll try to fix that today.

Αναρτήθηκε από neylon περίπου 3 χρόνια πριν

This is fantastic! And very helpful. I need to look for the first post now. Thank you so much for sharing this information. Cheers chd

Αναρτήθηκε από chdonati περίπου 3 χρόνια πριν

Even though as a west coaster I'm likely to be dealing with different species, I am still finding these documents very valuable in demonstrating the types of fieldmarks to look for and examples of how to identify them on images. I find the comparative images extremely useful in this regard. Thanks so much for taking the time to create such an informative series of documents!

Αναρτήθηκε από wildnettle περίπου 3 χρόνια πριν

I just re-did the the entry in google slides, it looks a lot better then it did.

Αναρτήθηκε από neylon πάνω από 2 χρόνια πριν

Cheers!

Αναρτήθηκε από chdonati πάνω από 2 χρόνια πριν

Looks fantastic!

Αναρτήθηκε από wildnettle πάνω από 2 χρόνια πριν

Thank you , It's now linked to my reference list and will be guiding me in the coming season.

Αναρτήθηκε από louc33 πάνω από 2 χρόνια πριν

Wickedly, totally awesome guide. But do you know how many photos I have to go back through now?

Αναρτήθηκε από contrarianvulgarian πάνω από 2 χρόνια πριν

Joel, thank you for the great guides you have put together on Bombus spp. They are very informative and helpful to those of use learning how to identify bees in the field.

Αναρτήθηκε από psking περίπου 2 χρόνια πριν

Excellent guide! Thanks so much for sharing this.

Αναρτήθηκε από scoutingforplants περίπου 2 χρόνια πριν

Excellent! Now I know what details to try to capture when photographing Bombus to get a positive ID.

Αναρτήθηκε από mnerrie περίπου 2 χρόνια πριν

Excellent tutorial! Thanks for taking the time to help others learn the differences among these bumblebees!

Αναρτήθηκε από zitserm περίπου 2 χρόνια πριν

I'm so glad this resource exists! All my field guide uses to distinguish B. impatiens and B. bimaculatus are the spots on T2. But then you IDed some of my bee observations as bimaculatus without me even having a decent view of the abdomen!
I have a question though. On the slide titled "Scutum (cont.) B griseocollis", the pictures all have large black spots on their scutum, but you state before that that they only have a small black spot. Are those pictures of impatiens or bimaculatus instead?
Thanks!

Αναρτήθηκε από spellecchias περίπου 2 χρόνια πριν

@spellecchias The left and middle pictures on that page are griseocollis males which can look a little different from the females. I should probably note that on the page. Thanks

Αναρτήθηκε από neylon περίπου 2 χρόνια πριν

Good to know, thanks!

Αναρτήθηκε από spellecchias περίπου 2 χρόνια πριν

Superb reference information and supporting images. Thanks so much!!

Αναρτήθηκε από deanthompson 7 μήνες πριν

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