First one is S. invicta quite clearly (first all; the head is smaller than the thorax and second is the fact that the last petiole is smaller whereas S. geminata, the last petiole is longer. This varies from ant to ant though). The second is likely C. neararcticus due to long and skinny abdomen and small compared to scale. The last one is indeed a temporary parasite of Lasius. Most likely L. aphidicola as L. umbratus fly in September. Of course they go through hibernation but it is very very hard to ID from both species. Research show that L. aphidicola are just North American versions of L. umbratus but then why are they considered a different species in the US? There must the some differences. Other than that; this might be L. umbratus and it probably is due to the darker appearance in such light but I’m leaning towards L. aphidicola.
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The_Gaming-gate and GOCAMPONOTUS like this
Keeping:
2x - S. molesta (colonies) 1x - C. nearcticus (founding) New!
1x - C. chromaiodes (colony) 1x - C. subbarbatus (founding) New!
2x - F. pallidefulva (colonies) 1x T. sessile (mega colony)
2x - C. cerasi (founding) workers are here!
1x - B. depilis (founding but no eggs)
2x - P. imparis (colony) 2x P. imparis (founding) Unfortunately no multi queen P. imparis colonies as all of the queens died due to fungus infection (assumed). RIP
Check out my C. nearcticus journal here: https://www.formicul...cticus-journal/
Check out my C. chromaiodes journal here: https://www.formicul...aiodes-journal/