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Formica pallidefulva-group worker – Porter County, Indiana, U.S.A. – 12 Jan 2021


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5 replies to this topic

#1 Offline Mettcollsuss - Posted January 12 2021 - 7:06 AM

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I believe I've narrowed this one down to either F. pallidefulva or F. incerta. All the specimens of F. pallidefulva workers on AntWeb have hairless mesosomas, though according to this key it's not an impossibility for there to be a few. So I'm on the fence about whether this is a slightly-hairier-than-average F. pallidefulva or a less-hairy-than-average F. incerta. I'm leaning more towards F. pallidefulva but I'd appreciate some conformation or correction. Or if you have a third suggestion, I'd be happy to consider it as well.

 

Info:

Porter County, Indiana, U.S.A.

41°38'12.4"N, 87°5'15.1"W (41.636778, -87.087528)

7 Sep 2020   12:42pm

 

Images:

(specimen got damaged during imaging) 

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med_gallery_1963_1384_80244.jpg

med_gallery_1963_1384_1431909.jpg


Edited by Mettcollsuss, January 12 2021 - 12:20 PM.

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#2 Offline Aaron567 - Posted January 12 2021 - 11:33 AM

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I would also lean more toward pallidefulva...

 

The length of the antennal scapes is another way they're told apart, with incerta having the shorter scapes. But this is hard to observe by looking at AntWeb photos because the antennae are all in varying different positions in the photos, so it's hard to tell which species the scape length on your specimen is closer to.



#3 Offline Ferox_Formicae - Posted January 12 2021 - 11:53 AM

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I'd go with incertapallidefulva lacks erect setae on the pronotal dorsum, while this individual has a few of them. dolosa and biophilica can also be ruled out here due to the density of the erect gastral setae not being sufficient enough to be either species.


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#4 Offline CheetoLord02 - Posted January 12 2021 - 11:58 AM

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psssst.... it's not 2020 anymore... (although I see the specimen was collected in 2020... I think I'm just confusing myself here.)

Also, yeah, I'd agree with F. incerta.


Edited by CheetoLord02, January 12 2021 - 11:59 AM.

pizap (4)

 

 


#5 Offline Mettcollsuss - Posted January 12 2021 - 12:24 PM

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psssst.... it's not 2020 anymore...

Oh, oops. Thanks for catching that.



#6 Offline Ant_Dude2908 - Posted January 12 2021 - 2:05 PM

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I'd go with F. incerta as well.






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