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

Julkaistu toukokuu 20, 2021 01:51 AP. käyttäjältä neylon neylon

Kommentit

Thank you! This level of detail is so helpful.

Lähettänyt sarahwilson1 melkein 3 vuotta sitten

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

Lähettänyt neylon melkein 3 vuotta sitten

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

Lähettänyt chdonati melkein 3 vuotta sitten

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!

Lähettänyt wildnettle melkein 3 vuotta sitten

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

Lähettänyt neylon yli 2 vuotta sitten

Cheers!

Lähettänyt chdonati yli 2 vuotta sitten

Looks fantastic!

Lähettänyt wildnettle yli 2 vuotta sitten

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

Lähettänyt louc33 yli 2 vuotta sitten

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

Lähettänyt contrarianvulgarian noin 2 vuotta sitten

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.

Lähettänyt psking noin 2 vuotta sitten

Excellent guide! Thanks so much for sharing this.

Lähettänyt scoutingforplants noin 2 vuotta sitten

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

Lähettänyt mnerrie noin 2 vuotta sitten

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

Lähettänyt zitserm noin 2 vuotta sitten

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!

Lähettänyt spellecchias noin 2 vuotta sitten

@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

Lähettänyt neylon noin 2 vuotta sitten

Good to know, thanks!

Lähettänyt spellecchias noin 2 vuotta sitten

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

Lähettänyt deanthompson 7 kuukautta sitten

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