I didn't even know Odontotermes soldiers can do that.
Anyway, I was wondering how do you tell apart Odontotermes termites from Macrotermes.
From the workers i am not sure, from the soldiers you sould check for any teeth on the mandibles: as their name suggest, Odontotermes species have at least a tooth on their left mandible, and some have one on the right aswell. Be careful however, as in some species this tooth is positioned near the base of mandible and is thus covered by the labrum and basically invisible from above. If you have doubts, your best bet is to remove the mandibles entirely to check them easily. Meanwhile, Macrotermes mandibles lacks definite teeth and have a very fine serration near the base at most.
For a pair of examples of Odontotermes, here's a pic (by Dr. Rudolf Scheffrahn) of an Odontotermes javanicus, with teeth only on its left mandible as it's most common in the genus:
...and another (still by Dr. Rudolf Scheffrahn) of an Odontotermes bequaerti, a large species from Africa with a teeth on both mandibles:
Edited by ItalianTermiteMan2.0, January 14 2023 - 5:57 PM.