nd marched over and around it.
While the army ants are primarily found in the New World tropics the driver ants are found in the tropics of Africa. Both types are very similar as far as their behavior and biology is concerned. One distinct difference is that while large colonies of army ants may number one million colonies of driver ants can reach 200 million. With such huge numbers they present more of a threat to humans and other animals. There have been human deaths recorded from the raids of these critters (mostly infants). In these cases death has typically occurred from suffocation as a result of the ants entering and filling the lungs.
The mating behavior of these ants is especially strange. The males are to drawn to the foraging columns supposedly looking for a mate. Instead of finding a queen the sterile workers quickly swarm the males and immediately tear their wings off. Then they carry them off and basically imprison them until a potential new queen is available.
Bullet Ants. This ant is primarily found in rainforests ranging from Nicaragua to Paraguay and Australia. This huge (1 inch) beast is called the bullet ant because its sting feels like being shot by a bullet. On the Schmidt Sting Index bullet ants rate as the number one most painful sting found in the arthropods. When defending their nest they swarm out, release a strong odor and stridulate an audible sound (said to sound like a shriek) and then grab and impale their intruder. In Central-South America they are referred to as the 24-hour ant, referring to the pain described as “of burning, throbbing, all consuming pain” that may last a day or more.
A one-inch Costa Rican bullet ant.
As with many other arthropods bullet ants play a ceremonial role in some tribes of the rainforests. The Satere-Mawe people of Brazil use this ant in the right of passage of boys into manhood. In this case live bullet ants are woven into a sleeve made of leaves with the stingers pointing inward. Once the sleeve is place on the arm the goal is to leave it on for 10 minutes without crying due to the stings. When finished the boys arms are temporarily paralyzed and they may shake uncontrollably for days. To fully complete the initiation, however, the boys must go through this ordeal a total of 20 times over a several month period or years.
Harvester Ants. These (Pogonomyrmex spp.) are commonly thought as the large red or black ants that form rather large nests in open fields, schoolyards, along railroad tracks, alleys or other similar situations. Of the 23 species that occur in the United States 22 occur west of the Mississippi River. Beside their large size and color these ants can be distinguished by fringes of long curved hairs on the back, underside margin of the head. These hairs are used to clean the ant’s antennae and legs, carry water and remove sand during excavation of their nests. The nests are typically quite large consisting of one or more holes surrounded by a low flat crater (up to 8 inches across). This crater in turn is surrounded by a rather large vegetation free area
A black harvester ant.
Harvester ants feed primarily on seed. In agricultural areas they are considered beneficial as they remove weed seeds from crops. The main reason they are found along railroad tracks is due the grain that is lost during transportation.
Harvester ants readily sting but typically are not aggressive unless defending the nest. If disturbed they will swarm from the nest and readily sting. Their venom is extremely powerful resulting in considerable pain that may last for several days. Harvester ant venom is the most toxic venom found in arthropods although there is considerably less than in black widows and consequently the sting of the ant is much less dangerous than the bite of the spider.
Fire Ants. There are many species of fire ants in the United States, but the most serious pests are 4 in the genus Solenopsis: the red imported fire ant, the black imported fire ant, the southern fire ant, and the fire ant. Distinguishing between imported and native species of fire ants is d