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Ant - Temnothorax longispinosus - female

Ant - Temnothorax longispinosus - Female
Guelph, Wellington, Ontario, Canada
December 5, 2008
Size: 2 mm
Noticed this tiny ant wandering across my desk. I usually don't find house ants this small.

Thanks Richard
I didn't think this pic would make it to species. I'm still having trouble capturing sufficient detail in the small things.

Temnothorax longispinosus - worker
Tom didn't get the genus, but was very close. Besides size, main differences are antennal segments number (not easy to assess on this one pic), shinier cuticle, rounder head and very long propodeal spines - to which the species owes its name.

Is this one also longispinosus?

I think you're right
I didn't venture to a species level ID two years ago, but "your" worker can confidently be attributed to this species too.

Could very well be.
This one is much smaller - maybe a different caste, or species. Thanks for the suggestion, I think you got the genus.

just a guess
It looks a lot like this one.

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