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The female ichneumonoid finds a host and lays an egg on, near, or inside the host's body. [9] The ovipositor of ichneumonoids generally cannot deliver a sting as many wasps or bees do. It can be used to bore wood and lay eggs on hosts deep inside, or reach hosts hidden inside leaf shelters.
Megarhyssa macrurus, also known as the long-tailed giant ichneumonid wasp [1] or long-tailed giant ichneumon wasp, [2] is a species of large ichneumon wasp. [3] It is a parasitoid, notable for its extremely long ovipositor which it uses to deposit an egg into a tunnel in dead wood bored by its host, the larva of a similarly large species of horntail.
The Ichneumonidae, also known as ichneumon wasps, ichneumonid wasps, ichneumonids, or Darwin wasps, are a family of parasitoid wasps of the insect order Hymenoptera.They are one of the most diverse groups within the Hymenoptera with roughly 25,000 species described as of 2016. [2]
The body of a female is c. 2 inches (50 mm) long, with an ovipositor c. 4 inches (100 mm) long. Females of the parasitoid wasp Neoneurus vesculus ovipositing in workers of the ant Formica cunicularia. Parasitized white cabbage larvae showing wasp larvae exiting its body, spinning cocoons. Playback at double speed.
Megarhyssa nortoni is a predatory insect. Its larvae are parasitoids of horntail wasp larvae in coniferous trees. The adult female hunts horntail larvae for egg placement. It smells wood-eating fungus, utilized by the horntail larvae to predigest wood pulp, and uses its antennae to detect vibrations made by the horntail larvae.
Megarhyssa male adults reach body lengths going from 2.3 to 3.8 cm (0.9 to 1.6 inches), while female adults can measure from 3.5 to 7.5 cm (1.5 to 3 inches). [3] Both sexes can be distinguished because females have an extremely slender, and long organ to lay eggs called the ovipositor.
Megarhyssa atrata, also known as the black giant ichneumonid wasp, is a species of large ichneumon wasp.It is known from North America, [1] where it is found from Quebec, Michigan, Ohio and North and South Carolina to Florida.
The species Pimpla rufipes has several synonyms, which include Pimpla hypochondriaca and Pimpla instigator. Pimpla instigator (Fabricius, 1793) has been permanently rejected under the International code of Zoological Nomenclature, since the original name Ichneumon instigator Fabricius, 1793 is a junior homonym of Ichneumon instigator Rossius, 1790, which represents a pimpline species outside ...