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Formicidae? - Linepithema humile

Formicidae? - Linepithema humile
William R. Mason Regional Park, Orange County, California, USA
May 18, 2009
Size: ~4mm
Long line of these climbing up and down the trunk of a Eucalyptus tree.

Moved from Linepithema.

As best as I can figure out, the other Linepithema species (L. iniquum) is not found in California. Please, someone correct me if I am wrong!!

Argentine Ant
Linepithema humile .... I think.

Yes it is Linepithema.
Yes it is Linepithema.

And, yes...
no L. iniquum in California

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