I recently posted about a rustic sphinx moth caterpillar which had attached to it’s body dozens of tiny pupae of a parasitic wasp called a brachonid wasp. These tiny wasps (anywhere from 2 mm to 15 mm) lay their eggs into the bodies of caterpillars. The larvae eat the caterpillar from within and pupate inside tiny white cocoons on the outside of the caterpillar’s body, hanging there like so many banderillas on the back of a bull in the arena, it’s painful and will eventuallyRead more
Posts tagged: #Brachonid wasp
A Sphinx in Need, Busy Sulphurs, and a Tiger In-between
The large green object that the smaller white objects are attached to in the above photo is a caterpillar, a hornworm, a rustic sphinx moth larva. The white objects are the pupae of a tiny parasitic wasp, a brachonid wasp, which lays its eggs under the skin of its host (like the unfortunate caterpillar above). The larvae that later hatch eat the caterpillar from within until ready to pupate. They then drill themselves out through the skin and form aRead more
Some Serendipitous Sightings
Top Photo: Monarch butterfly caterpillar on butterflyweed. While searching for harvester caterpillars on alder in the Wetlands I came across an assassin bug on one of the leaves. The bug was just about 3/4 inches (the body) and mostly green with brown on the back. Assassin bugs typically station themselves at a location which is busy with insects to wait and pounce on prey. They poke the prey with their long proboscis and suck them dry. An alder with aphidsRead more
A Busy Time for Arthropods
A large millipede (about 4 inches) was seen walking across the path in front of the Ornithopter. My best guess is that it was Narceus americanus. N. Americanus is the classic, round-in-cross-section form of millipede that’s most often encountered in our area. The other locally common millipede is about two inches in length, has a flattened, black body and yellow legs. All insects have six legs. Beyond that simple fact, the incredible array of shapes, colors and life styles ofRead more