Chizzztl, from Savage Empire
Chizztl, the Myrmidex King, oversees the Myrmidex of Eodon, answering only to the Queen. Although appearing as a mere soldier, he is larger and glossier than others of his kind, and can approximate human speech by clacking and writhing his mandibles.
When the Avatar met Chizztl within the Myrmidex Caves in Savage Empire, Chizztl did not have much to say, but told the hero he was not allowed in the caves, telepathically communicating to the Queen that "meat-beings" were in the hive. The Queen instantly agreed that the Avatar and his followers had to be exterminated.
Chizztl was swiftly dealt with.