Surgical precision and white-banded antennae: The parasitic wasp Nonnus

Nonnus is a unique genus of American parasitoid wasps in the family Ichneumonidae. Easily recognized by their long, white-banded antennae, females tap leaves to sense the faint vibrations and scents of host larvae hiding in the foliage. Once a target is found, the female uses a long, needle-like ovipositor to inject an egg deep inside the host. The hatching larva feeds internally on non-essential fluids and fat, intentionally keeping the host alive as a fresh food supply. Remarkably, the larva lacks a rear digestive opening, preventing waste from poisoning its host from within. While larvae eat meat, adult wasps feed on flower nectar, plant sap, and honeydew to fuel their rapid flight. I came across several of these restless wasps constantly darting through the vegetation. Photographing them required real patience—I had to wait until one finally paused for just a brief half-minute.

Leave a Comment

Your email address will not be published. Required fields are marked *

Latest posts of related arthropods

Photo taken on 22-08-2026 in Barkarby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings:  f11, 1/200, ISO 250.
Lemon stripes and nighttime grazers: Mee...
Photo taken on 05-09-2026 in Barkarby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings: f16, 1/100, ISO 125.
Orange legs and rhythmic dances: Meeting...
Photo taken on 30-08-2026 in Akalla, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings: f16, 1/50, ISO 160.
Boxy heads and living larders: Meeting t...
Photo taken on 25-07-2026 in Barkarby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings:  f13, 1/200, ISO 200.
Toxic, bitter, and orange: Barkarby enco...
Photo taken on 31-07-2026 in Barkarby, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings:  f13, 1/200, ISO 200.
Moonlight hunters and sickle tails: Meet...
Photo taken on 19-06-2026 in Töre camping, Sweden, with the Nikon Z6-II camera and Nikon Z MC 105mm f2.8 VR S lens and following settings:  f13, 1/200, ISO 100.
Subterranean drama: The foxy-brown minin...
Scroll to Top

Would you prefer to hide close-up spider photos?
Wolisz ukryć zdjęcia pająków?
¿Ocultar fotos de arañas en primer plano?