I'm curious as to what you guys feed your captive Odontomachus colonies. I feed mine mealworms because they're readily available, but they'll only accept it if I put the mealworm directly in the nest or at the nest entrance. Also, is it required to feed them sugary foods?
Another question, have any of you had experience with keeping Camponotus in plaster nests? I've heard that they're able to chew through plaster, has that ever happen to your Camponotus colonies? Thanks!
Thanks so much for the question, Phira. Odontomachus (sometimes called trap-jaw ants) are one of the coolest ants around. One of the experts on this group, Dr. Andy Suarez from the University of Illinois, gives this advice:
"We find that trap jaw ants are most excited about termites but will live happily on crickets and mealworms. Because crickets and mealworms are often infested with mites (because of the high densities that they are reared in at pet stores), we freeze them for a week or two before feeding them to the ants. We also tend to cut them up so the ants can get a bit of hemolymph. In addition to insects for protein, we try to always give trap jaw ants some sugar water or honey water. It is easily provided by making a 20% solution and then soaking a cotton ball in it. The cotton balls can them be removed if they start to mold."
In my own experience, Odontomachus in the wild will recruit to peanut butter baits (O. simillimus in Palau, and O. bauri in Panama). If you want to get more elaborate about ant colony nutrition, A. Dussutour and S. J. Simpson published an article in 2008 formally describing a precisely adjustable diet for ants mixing different protein powders, sugar, and agar. I used one version of that diet as an ant bait in Panama, and found many different ants were attracted to it.
With respect to sugar water, it is important because adult ants actually cannot swallow solid food. That's why you'll never see ants consuming solid food outside of their nest. They have to cut it up into manageable peices and bring it back to the larvae in the nest. The larvae chew and swallow the food, and regurgitate some of it for their adult sisters. So for small ant colonies which might not have many larvae at certain points, liquid foods are very important for the health of the adults.
As for Camponotus and plaster, I actually don't have any experience with that, but it seems like an easy hypothesis to test! Newly mated queens can certainly chew through fabric screening that can contain most other ants. They don't seem to be able to chew through metal screening however. If you like the way plaster regulates humidity, it might be worth trying to reinforce it with some metal screening.
Hope this helps!
Jesse Czekanski-Moir & the AntAsk Team