9 replies to this topic

[mannac]

1. Location (on a map) of collection: S.E. Wisconsin
2. Date of collection: 9/10/2019
3. Habitat of collection: Urban driveway
4. Length (from head to gaster):  6-6.5mm queen, 2mm workers
5. Color, hue, pattern and texture:  queen: overall orange brown, paler orange legs; workers lighter orange
6. Distinguishing characteristics: 
7. Distinguishing behavior:  unphased by light in test tube, nuptial flights with Lasius neoniger(?), Lasius claviger, Lasius latipes
8. Nest description:  

9. Nuptial flight time and date:  9/10/2019, ~5pm 

 

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Edited by mannac, August 1 2020 - 11:00 AM.

[NickAnter]

Probably Lasius brevicornis or nearcticus, assuming they arent parasitic.

[mannac]

Definitely not an obligate parasite.  She laid eggs this spring and has about 15 workers so far.  

[AntsDakota]

Their heads look large compared to most Lasius. 

[AnthonyP163]

This is a very strange looking colony. Can you get more photos of the queen?

[AntsDakota]

If you didn't have a location, I would've said Pseudolasius, a polymorphic east Asian genus.

Edited by AntsDakota, August 1 2020 - 12:39 PM.

[AnthonyP163]

I've found L. pallitarsis colonies that have workers like this. The head shape is what reminds of L. pallitarsis, but we probably cannot be certain for now.

[mannac]

Here are some better queen pics.  

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[NickAnter]

Lasius brevicornis or nearcticus.

[mannac]

Thanks all.