BALD-FACED HORNETS LONG ISLAND, NEW YORK
Bald-faced hornets are also known as bald hornets, white-faced hornets, white-tailed hornets, spruce wasps, black jackets, and bull wasps. Bald-faced hornets are not true hornets but rather an aerial yellowjacket wasp. The bald-faced hornet is a eusocial insect that lives in colonies and is named for the distinctive ivory-white markings on its face. Bald-faced hornets are distinguished from other yellow jacket wasps by their white and black markings and significantly larger size. These hornets have three distinctive white stripes at the end of their abdomens. Bald-faced hornets have a stout body and translucent dark brown wings. Female worker hornets are covered with small hairs, while the queens are hairless. Bald-faced hornets are 5/8 to 3/4 of an inch long. Queen bald-faced hornets are consistently larger than workers in their colony. Male bald-faced hornets develop from haploid, unfertilized eggs and females from diploid, fertilized eggs. Worker female hornets can, therefore, lay eggs that develop into drones. After sufficient workers have been reared and queen-destined eggs have been laid to give workers a reproductive advantage, the bald-faced hornet queen may be killed.
BALD-FACED HORNET DISTRIBUTION & BEHAVIOR
The bald-faced hornet is native to and found in North America, including Southern Canada, Alaska, the Rocky Mountains, the western coast of the United States, and a greater part of the eastern United States. However, the bald-faced hornet is absent from arid regions of the United States. Bald-faced hornets will build a sizeable gray, papery nest, occasionally reaching three feet in length on a tree branch, in shrubs, or on the soffit of a Long Island residence. The bald-faced hornet nest is constructed of two to four layers of hexagonal combs encased in about two inches of protective paper. The nest is built with air vents in the upper part of the nest, allowing excess heat to escape and an entrance hole at the bottom. These social wasps are omnivorous and are considered to be beneficial insects due to their predation of spiders, caterpillars, flies, and other yellowjackets. However, their aggressively defensive character makes them a grave danger to people who come too close to their nest. Bald-faced hornets vehemently defend their nest by repeatedly stinging and spraying venom into an intruder's eyes, resulting in short-term blindness.