Castianeira is a genus of spiders present in Eurasia, Africa, and the Americas. Some of its species mimic ants; others prey on them. Several species, found in Texas, are known to prey on fireants. Contrary to information circulating on social media, there are no Castianeira in Australia. About 25-30 (a rough estimate) species of Castianeira are native to the United States of America, and at least twice as many "different" species are native to Mexico and Central America. There are rumors that the Castianeira was brought to the United States by "drug cartels" in order to scare away locals who might wander too close to their drug operation. This rumor is entirely false. As previously stated, Castianeira is already native to the United States and Central America; and could not have been broug