Dusona aemula
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Ichneumonidae
Genus: Dusona
Species:
D. aemula
Binomial name
Dusona aemula
Förster, 1868

Dusona aemula is a species of parasitic wasp belonging to the family Ichneumonidae, subfamily Campopleginae.[1] It is a parasitoid of Geometrid moth larvae, mainly Eupithecia species.[2]

Description

Head, antennae and thorax black. Second abodominal segment red on the posterion 0.1 – 0.3, third segment almost enirely red and forth segment often marked with red, gaster otherwise black. Front legs yellow from the trochanter, mid leg yellow from the apex of the trochanter, hind tibia yellowish medially, narrowly marked with black basally, rather broadly marked with black apically. All tarsi are darkened apically. Glymma small. Maxillary palps yellow or yellowish red. Mandibles marked with yellow. Epiplueron of the third tergite not separated by a crease. Size 7-8 mm, 24–30 flagellomeres in females, 28–32 in males. Ovipositor index 0.6. Dusona aemula can be distinguished from the very similar species D. juvenilis by the length of the ovipositor and the presence of a distinct pleural part of the epicnemial carina only sometimes weakly obliterated ventrally.[3][4]

Ecology

Dusona aemula is a parasitoid of several species of Geometrid moth: Eupithecia absinthiata, Eupithecia centaureata, Eupithecia distinctaria, Eupithecia pimpinellata, Eupithecia ultimaria, Eupithecia venosata and potentially Operophtera brumata though this has not been confirmed. The wasp seems to be either bivoltine or univoltine depending on its host's life cycle and the climate, as it has at least two generations in continental Europe but only one further north. The larva overwinters in its own cocoon. Flight period between June and October.[2]

Distribution

Dusona aemula is known from almost the entire palearctic region: Austria, Azerbaijan, Belgium, Bulgaria, Croatia, Czech Republic, Finland, France, Germany, Hungary, Italy, Kazakhstan, Moldova, Netherlands, Norway, Poland, Romania, Russia, Spain, Sweden, Tunisia, Turkey, Ukraine and United Kingdom.[2][4]


References

  1. ↑ Taxapad Ichneumonoidea. Yu D.S.K., 4 May 2009
  2. 1 2 3 Horstmann, K (2011). "Verbreitung und Wirte der Dusona-Arten in der Westpaläarktis (Hymenoptera, Ichneumonidae, Campopleginae)" (PDF). Linzer biologische Beiträge. 43: 1295-1330.
  3. ↑ Horstmann, Klaus (2009). "Revision of the western Palearctic species of Dusona Cameron (Hymenoptera, Ichneumonidae, Campopleginae)" (PDF). Spixiana. 32: 45-110.
  4. 1 2 Meier, Noah I.; Urfer, Karin; Haraldseide, Håkon; Vårdal, Hege; Klopfstein, Seraina (2022). "Open access in a taxonomic sense: a morphological and molecular guide to Western Palaearctic Dusona (Hymenoptera, Ichneumonidae)". Journal of Hymenoptera Research.
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