Habronyx

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Habronyx
Adult male specimen of Habronyx victorianus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Ichneumonidae
Subfamily: Anomaloninae
Tribe: Gravenhorstiini
Genus: Habronyx
Förster, 1868

Habronyx is a genus of parasitoid wasps belonging to the family Ichneumonidae.[1] The species of this genus are found in Europe, Australia, and North[1] and South America.[2]

Distribution[edit]

Habronyx species are found in most realms, with the exception of the Afrotropical realm.[2]

Reproduction[edit]

Habronyx adults lay their eggs inside Lepidopteran larvae (i.e. caterpillars) by piercing them with their ovipositor.[2] Habronyx eggs consist of an equatorial disc and a caudal stalk, making them look a bit like the cartoon oil lamp from Aladdin.[3] It's thought that the shape is adapted to attach the egg to the inside of the caterpillar's integument.[4] Once the eggs hatch, the Habronyx larvae consume the caterpillar from the inside. They emerge from the deceased caterpillar as adults.

Description[edit]

Habronyx eggs consist of a disc and stalk, not unlike this cartoon lamp (sans handle)

The adult of most Habronyx species are generally about 30mm in length.[3]

Like all ichneumons, the genitals of the male Habronyx consists of a capsule formed by two lateral gonosquamae. The membraneous part of the aedeagus is covered in small spines; Habryonx shares this feature with several other genera but some genera have a smooth aedeagus .[3]

Species[edit]

References[edit]

  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au "Habronyx (Foerster, 1868)". Global Biodiversity Information Facility. Retrieved 23 February 2021.
  2. ^ a b c d e f Alvarado, Mabel; Grados, Juan (2015-03-24). "Habronyx Förster (Hymenoptera: Ichneumonidae: Anomaloninae) in Peru and Ecuador: three new species, a range extension, and a new host record". Zootaxa. 3937 (1): 50–60. doi:10.11646/zootaxa.3937.1.2. ISSN 1175-5334. PMID 25947460.
  3. ^ a b c Gauld, I. D. (1976). "THE CLASSIFICATION OF THE ANOMALONINAE HYMENOPTERA ICHNEUMONIDAE". Bulletin of the British Museum (Natural History) Entomology. 33: 1–135.
  4. ^ Tothill, John D. (1922). The natural control of the fall webworm (Hyphantria cunea Drury) in Canada : together with an account of its several parasites. Ottawa: F.A. Acland, King's Printer. doi:10.5962/bhl.title.63051.
  5. ^ a b Townes, Henry; Momoi, Setsuya; Townes, Marjorie (1965), "A Catalogue and Reclassification of the Eastern Palaearctic Ichneumonidae", Memoirs of the American Entomological Institute, no. 5, Ann Arbor, Michigan: American Entomological Institute
  6. ^ "Habronyx victorianus". Australian Faunal Directory. Retrieved 2022-12-17.