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Queen ID+Small Colony ID, 3/28/18


Best Answer James C. Trager , April 1 2018 - 6:32 AM

The second one is Temnothorax schaumi. Indiana is hundreds of miles too far east for T. tricarinatus, a Rocky Mts. and Black Hills species. 

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#1 Offline AntsAreUs - Posted March 29 2018 - 12:28 PM

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1. Location (on a map) of collection: Marion, Indiana
2. Date of collection: 3/28/18
3. Habitat of collection: Under a stone slab
4. Length (from head to gaster): 3-4mm
5. Color, hue, pattern and texture: Lightly colored legs and antenna, rough texture
6. Distinguishing characteristics: Small propodeal spines
7. Distinguishing behavior: ?
8. Nest description: Rich, loose soil underneath a stone slab

9. Nuptial flight time and date: Unknown, likely from last year

 

I suspect it to be Myrmecina americana.

 

 

 

1. Location (on a map) of collection: Marion, Indiana
2. Date of collection: 3/28/18
3. Habitat of collection: On an oak tree
4. Length (from head to gaster): 2mm worker and 3-4mm queen
5. Color, hue, pattern and texture: Mostly black
6. Distinguishing characteristics: Fairly slender, 2 clear petiole nodes, no visible spines with 10x magnification
7. Distinguishing behavior: Polygynous
8. Nest description: In between 2 pieces of bark

9. Nuptial flight time and date: Unknown

 

 

 

And 4 more shots:

 


Edited by AntsAreUs, March 30 2018 - 6:09 PM.

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#2 Offline Jonathan21700 - Posted March 29 2018 - 1:29 PM

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Myrmecina americana



#3 Offline Mettcollsuss - Posted March 29 2018 - 1:31 PM

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Yep. Definitely Myrmecina.

#4 Offline Martialis - Posted March 29 2018 - 4:17 PM

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I agree with Jonathan and Mettcollsuss


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#5 Offline AntsAreUs - Posted March 29 2018 - 4:23 PM

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I agree with Jonathan and Mettcollsuss

 

 

Yep. Definitely Myrmecina.

 

 

Myrmecina americana

Thank you all but I would like more recommendation on the second one if possible.



#6 Offline MrILoveTheAnts - Posted March 29 2018 - 6:26 PM

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Your second one I'm thinking is Temnothorax tricarinatus.


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#7 Offline VoidElecent - Posted March 30 2018 - 6:03 AM

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Your second one I'm thinking is Temnothorax tricarinatus.

 

What rules out Temnothorax longispinosus? According to registered taxa, T. tricarinatus distribution doesn't extend as far east as Indiana. 



#8 Offline MrILoveTheAnts - Posted March 30 2018 - 5:17 PM

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Your second one I'm thinking is Temnothorax tricarinatus.

 

What rules out Temnothorax longispinosus? According to registered taxa, T. tricarinatus distribution doesn't extend as far east as Indiana. 

 

 

T. longispinosus (as the name eludes to) have very long spines.

 

I'm starting to think they may be the dark form of T. schaumii now. They're found in the location which is a plus. I would still like to rule out T. tricarinatus though, but the trouble is I think they only differ in body texture of the head and mesosoma. T. schaumii are shinier and in the first image (of the 2ed ID) the one worker's head seems like it has a lot of texture. We need more images to be sure.


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#9 Offline James C. Trager - Posted April 1 2018 - 6:32 AM   Best Answer

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The second one is Temnothorax schaumi. Indiana is hundreds of miles too far east for T. tricarinatus, a Rocky Mts. and Black Hills species. 


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#10 Offline nurbs - Posted April 1 2018 - 9:28 AM

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James C. Trager! Welcome back :)


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#11 Offline AntsAreUs - Posted April 2 2018 - 5:25 PM

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I do think these are T. schaumii, but I did add some more photos of the head and antennae.

 

11 antennae segments-






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