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.
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.
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Thank you! This level of detail is so helpful.
Thanks for checking it out.
I just noticed that google drive screwed up the layout I had, I'll try to fix that today.
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
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!
I just re-did the the entry in google slides, it looks a lot better then it did.
Cheers!
Looks fantastic!
Thank you , It's now linked to my reference list and will be guiding me in the coming season.
Wickedly, totally awesome guide. But do you know how many photos I have to go back through now?
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.
Excellent guide! Thanks so much for sharing this.
Excellent! Now I know what details to try to capture when photographing Bombus to get a positive ID.
Excellent tutorial! Thanks for taking the time to help others learn the differences among these bumblebees!
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!
@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
Good to know, thanks!
Superb reference information and supporting images. Thanks so much!!
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