About Japanese Horntail
A large wood wasp with a robust reddish-brown body and dark wings. Native to East Asia, it attacks stressed and recently felled hardwood trees.
Did You Know?
This species was first detected in North America in 1974 and is one of the few tropical siricid wood wasps to establish invasive populations.
How to Identify Japanese Horntail
Japanese Horntail (Eriotremex formosanus) belongs to the order Hymenoptera, family Siricidae. Adults typically measure 20-35 mm.
Japanese Horntail Habitat
Japanese Horntail is found in woodlands habitats, particularly across East Asia, Taiwan, introduced to southeastern United States. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Japanese Horntail Diet and Feeding
Japanese Horntail feeds on wood and bark, often boring into timber. Wood-feeding insects contribute to the decomposition of dead trees and nutrient cycling in forest ecosystems.
Where Is Japanese Horntail Found?
Japanese Horntail can be found in East Asia, Taiwan, introduced to southeastern United States, where it inhabits woodlands environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Japanese Horntail can be found
Is Japanese Horntail Dangerous?
Japanese Horntail belongs to the order Hymenoptera, which includes many stinging insects. While not typically aggressive, it may sting if threatened or handled. Stings can cause pain and swelling, and in rare cases may trigger allergic reactions in sensitive individuals.
Japanese Horntail Role in Nature
Japanese Horntail is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About Japanese Horntail
What does Japanese Horntail look like?
The Japanese Horntail typically measures 20-35 mm.
Where is Japanese Horntail found?
The Japanese Horntail is found in East Asia, Taiwan, introduced to southeastern United States and typically inhabits woodlands environments.
What does Japanese Horntail eat?
The Japanese Horntail feeds on wood and bark, often boring into timber.
Is Japanese Horntail dangerous to humans?
The Japanese Horntail belongs to the order Hymenoptera, which includes stinging insects. While not typically aggressive, it may sting if threatened or handled.
What is an interesting fact about Japanese Horntail?
This species was first detected in North America in 1974 and is one of the few tropical siricid wood wasps to establish invasive populations.
Cite This Page
APA:
InsectDiscover. (2026). Japanese Horntail (Eriotremex formosanus). Retrieved from https://insectdiscover.com/insect/japanese-horntail
MLA:
"Japanese Horntail." InsectDiscover, https://insectdiscover.com/insect/japanese-horntail.