Rhorus Forster 1869
| Main Authors: | Kasparyan, D. R., Choi, Jin-Kyung, Lee, Jong-Wook |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2016
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6062986 |
Daftar Isi:
- Genus Rhorus Förster, 1869 Type species: Tryphon mesoxanthus Gravenhorst, 1829 The genus can be distinguished from other ctenopelmatine genera by the presence of a characteristic U-shaped emargination between the base of the propodeum and the metanotum as well as by a slender ovipositor in its apical part (these two characters are typical of most Pionini). Species of Rhorus can be easily recognized by the absence of a suture between the face and the clypeus, by subbasal convexity of the mandible (convexity not strong and usually mat), and by semi-cylindrical, usually yellow ovipositor sheaths (their rounded apices bear a hairy membranous depression dorsally); distinctive characters of the wing venation include the presence in the fore wing of an areolet and nervulus usually very strongly postfurcal in the fore wing and hind wing - presence of a strongly inclivous nervellus usually broken near the lower end. The presence of a slender ovipositor suggests that hosts (sawflies) can be attacked at the stage of early-instar larvae or even eggs; there are records of oviposition through the ocellus in the larval head capsule (Zinnert, 1969; Pschorn-Walcher and Zinnert, 1971). Adult ichneumon wasps always emerge from cocoons of the host. All representatives of the subfamily Ctenopelmatinae are koinobiont endoparasitoids and attack sawfly larvae (Hymenoptera Symphyta). For Rhorus about 70 sawfly species, mainly belonging to the family Tenthredinidae, are known to be hosts (Yu et al., 2012).
- Published as part of Kasparyan, D. R., Choi, Jin-Kyung & Lee, Jong-Wook, 2016, New species of Rhorus Förster, 1869 (Hymenoptera: Ichneumonidae: Ctenopelmatinae) from South Korea, pp. 569-576 in Zootaxa 4158 (4) on page 570, DOI: 10.11646/zootaxa.4158.4.8, http://zenodo.org/record/255489