Nixonia (van Noort, S. & Johnson, N. F. 2009)

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Taxonavigation

Ordo: Hymenoptera
Familia: Scelionidae

Name

Nixonia van Noort, S., 2009 – Wikispecies link – Pensoft Profile

• Nixonia van Noort, S., 2009, ZooKeys 20: 34-41.

Description

urn:lsid:zoobank.org:act:E56C690B-55E3-4977-B7CF-6493DEF73E6C

Discussion

Nixonia^HNS Masner, 1958: 101. Original description. Type: Nixonia pretiosa^HNS Masner, by monotypy and original designation. For subsequent taxonomic literature see Johnson(1992) or The Genera of Platygastroidea of the World (http://purl.oclc.org/ NET/hymenoptera/platygastroidea).

Diagnosis

Diagnosis. Nixonia^HNS is superficially similar to Scelio Latreille, and to the larger, more elongate species of Macroteleia Westwood and Triteleia Kieffer. Nixonia^HNS is distinguished by the 14 segmented, nonclavate antennae; the strong medial propodeal tooth; and the presence of two tibial spurs on both the mid-and hind tibiae.

Distribution

Distribution. Nixonia^HNS species richness is centered in southern Africa, but distribution extends north to Egypt, Kenya, Somalia, Rwanda, and the Democratic Republic of Congo (former Zaire). A single species, N. krombeini^HNS, is found in Sri Lanka, northern India, and southeast Asia (Thailand, Laos, and Vietnam). See http://hol.osu.edu/ map-large.html?id=523 for distribution map.

Biology and Ecology

Biology. Only one species has been reared: Nixonia watshami^HNS a parasitoid of the eggs of A. discoidalis^HNS (Walker, 1869) (Orthoptera: Tettigoniidae, Hetrodinae). The subfamily Hetrodinae is endemic to Africa and adjacent areas of the Arabian Peninsula (Otte et al. 2009) and all 14 genera are likely to play hosts for Nixonia^HNS species. The host, however, of at least N. krombeini^HNS which occurs outside the range of Heterodinae in tropical Asia must be some other large orthopteran (Johnson and Masner 2006).

Taxon Treatment

• van Noort, S.; Johnson, N. F.; 2009: New species of the plesiomorphic genus Nixonia Masner (Hymenoptera: Platygastroidea, Platygastridae) from South Africa. ZooKeys, 20: 34-41. doi

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