Júlio came up with the correct answer to the questions in the last post.
Species 5 is Acromyrmex versicolor, and this worker was carrying a very large piece of caterpillar frass. As I noted in the comment, the frass is most likely from a Manduca rustica caterpillar, as there was a host tree nearby.
The challenge: to see how many species of ants I could find in Tucson, Arizona in two hours.
Species 5: You tell me.
To make this a little more fun, why don’t you tell me what the fifth species is.
Bonus: What is this ant carrying?
The challenge: to see how many species of ants I could find in Tucson, Arizona in two hours.
Species 2. Forelius
Most likely they are Forelius mcccooki, the species I have identified in Phoenix, but because this was a public place I didn’t take samples.
Chris Schmidt indicates that Forelius are probably the ants you are most [...]
There is a story on the Internet of a myrmecologist (unfortunately unnamed) finding 10 species of ants, including army ants, while waiting for a flight at the Tucson, Arizona airport. I had two hours in Tucson on Saturday morning, so I wondered if I could do as well. For the next few days we’ll see [...]