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8 replies to this topic

#1 Offline makowmartinkovarik - Posted June 17 2018 - 2:46 AM

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1. Location (on a map) of collection: Brno, Czech Republic, Europe, 49.2045594N, 16.6920797E

2. Date of collection: 
3. Habitat of collection: 
4. Length (from head to gaster): 8 mm
5. Color, hue, pattern and texture: dark brown/black, 
6. Distinguishing characteristics: see photos - Antennal segments: 12 parts 
7. Distinguishing behavior:
8. Nest description: cannot say

9. Nuptial flight time and date: 10.6.2018 before 6:00 (sunrise) - more than 100 queens were "caught" by morning dew on my terrace. 

 


 

Is it Tetramorium caespitum ???

 

Thanks

Martin

 


 

 


 


Edited by makowmartinkovarik, June 17 2018 - 2:47 AM.

makow


#2 Offline AnthonyP163 - Posted June 17 2018 - 4:29 AM

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Yes, it appears to be Tetramorium caespitum.



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#3 Offline Bracchymyrmex - Posted June 17 2018 - 4:41 AM

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It would actually be Tetramorium immigrans, the species name was changed last year.



#4 Offline Skwiggledork - Posted June 17 2018 - 5:12 AM

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I thought immigrans was what they classified the American species and caespitum was the European species? The american one used to be called T. species E, since it wasn't 100% confirmed to be the species from over there, then they decided it was a different species and named it immigrans... I thought.



#5 Offline Barristan - Posted June 17 2018 - 9:20 AM

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It is very hard to distinguish species of the Tetramorium caespitum complex, check out: https://myrmecologic....pdf&format=rawThere is a quite new key to ID these species.

 

I would only say Tetramorium sp. so far.


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#6 Offline AntsAreUs - Posted June 17 2018 - 12:05 PM

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Tetramorium caespitum is the European species whereas Tetramorium immigrans is the North American species. Identification between the 2 is near impossible.



#7 Offline Barristan - Posted June 17 2018 - 12:19 PM

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Tetramorium caespitum is the European species whereas Tetramorium immigrans is the North American species. Identification between the 2 is near impossible.

 

Tetramorium immigrans also occurs in Europe, see the illustration from the paper I posted above:

 

Tetramorium casespitum complex distribution
 
if you don't measure certain body parts of the ants you can't identify them correctly. So impossible to tell by the photos if it is Tetramorium caespitum or not.

Edited by Barristan, June 17 2018 - 12:22 PM.


#8 Offline AntsAreUs - Posted June 17 2018 - 12:34 PM

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Oh, they are found in Europe? Tetramorium are annoying.



#9 Offline Batspiderfish - Posted June 17 2018 - 1:06 PM

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Yeah, the caespitum-group Tetramorium are all non-native in North America. We do have a few native species in the southwest.


If you've enjoyed using my expertise and identifications, please do not create undue ecological risk by releasing your ants. The environment which we keep our pet insects is alien and oftentimes unsanitary, so ensure that wild populations stay safe by giving your ants the best care you can manage for the rest of their lives, as we must do with any other pet.

 

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