New Wasp Species Discovered Parasitizing Pests of Pine Trees

Baryscapus dioryctriae is a new species of wasp that parasitizes two moths of the genus Dioryctria, a pest of pine trees in China. (Photo credit: Li-Wen Song, et al)

By Josh Lancette A new parasitoid wasp species, named Baryscapus dioryctriae, has been discovered in China. The new species is known to parasitize larvae of two species of Dioryctria, which are serious pests of pine trees, and was found during a survey looking for natural enemies of Dioryctria pryeri and D. abietella. This finding, published […]

Parasitoid Wasp Makes a Comeback after 101 Years

Oobius-depressus

A species of wasp that is a natural enemy of a wood-boring beetle that kills black locust trees has been rediscovered, more than 100 years after the last wasp of this species was found. The discovery is significant because the wood-boring beetle, known as the locust borer, is considered a serious pest that has discouraged […]

Natural Born Stink Bug Killer Found in Washington State

Trissolcus-japonicus23

Since 2007, the U.S. Department of Agriculture has been directing studies of a tiny Asian wasp called Trissolcus japonicus. These wasps are parasitoids of the brown marmorated stink bug (Halyomorpha halys), which has caused millions of dollars in damage to fruit orchards since it was discovered in the U.S. less than two decades ago. Researchers […]

Brown Widow Spider Reported for the First Time in Tahiti

Latrodectus-geometricus-brown-widow

By Josh Lancette Tahiti is a popular tourist destination, but one unwanted visitor has decided to make its home there: the brown widow spider (Latrodectus geometricus). A paper published in the Journal of Medical Entomology has reported the discovery of the spider for the first time on Tahiti and also on four of the Cook […]

New Parasitoid Wasp Species Discovered in South Korea

Seticornuta-koreana

A team of South Korean researchers has discovered a new species of parasitoid wasp in their country. The new wasp, which belongs to the genus Seticornuta, a group belonging to the subfamily Metopiinae, was named Seticornuta koreana after the country where it was found. It is described in the journal ZooKeys. Parasitoid wasps reproduce by […]

Zombie Ladybugs Protect Their Own Predators

Coleomegilla-maculata

A spotted lady beetle (Coleomegilla maculata) protecting the cocoon of a parasitic wasp (Dinocampus coccinellae) that hatched from an egg inside of its own body. Photo by Anand Varma/National Geographic; Jacques Brodeur Lab, University of Montreal.

New Parasitoid Wasp Species Found in China

Spasskia-brevicarinata

For the first time, wasps in the genus Spasskia (family: Braconidae) have been found in China, according to an article in the open-access Journal of Insect Science. In addition, a species in that genus which is totally new to science was also discovered. The new species, Spasskia brevicarinata, is very small — male and female […]

British Entomologist Discovers New Wasp Species in Local School Playground

Encarsia-harrisoni

Dr. Andrew Polaszek, an entomologist at the Natural History Museum in London, England has discovered a new species of wasp in a local school playground. “You tend to think of new species being found in remote, exotic locations, not in a playground in Sevenoaks,” Dr. Polaszek said to the Sevenoaks Chronicle, a local newspaper. The […]

Videos of Parasitoid Wasps and their Caterpillar Hosts

parawasp

This first video was recently submitted to the 2013 ESA YouTube Your Entomology contest by Justin Bredlau, a PhD student at Virginia Commonwealth University. The video shows the life of the parasitic wasp, Cotesia congregata, and two of its hosts. It includes courtship behavior, parasitizing of the host, and larval egression. More information on the […]

New Wasp Species Discovered in Taiwan Lays Eggs Inside Damselfly Eggs

wasp-damsel

Entomologists from National Taiwan University have found a new species of wasp that lays its eggs inside the eggs of damselflies. When the larvae hatch, they use the damselfly eggs for nourishment. The authors also observed the tiny adult female wasps, which are only 1.2 mm in length, gathering near the abdomens of the damselflies, […]