Kind of neat how closely your ants look to the cow ants from here. Cow ants here technically aren't ants but are actually a specie of wingless wasp. The only reason they got the nickname cow ants was due to them accidently killing cattle whenever they stung them. They have a potent neurotoxin that causes extreme pain and can cause cardiac arrest if someone panics over it, normally not deadly to humans unless allergic but can kill due to panic. The only reason panic plays a major role in it's lethality is that the neurotoxin can affect the heart allot faster and that the toxin causes muscles to lock up in pain including the heart muscles. Btw here's a pic of a cow ant, a.k.a red velvet ant, from South Dakota to show some of the similarities.
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