Published September 24, 2020 | Version v1
Taxonomic treatment Open

Austrothaumalea Tonnoir. Two 1927

  • 1. The University of Tennessee, Department of Entomology and Plant Pathology, 2505 E. J. Chapman Drive, 370 Plant Biotechnology Building, Knoxville, Tennessee, 37996, U. S. A. & robertjpivar @ gmail. com; https: // orcid. org / 0000 - 0003 - 2642 - 0524
  • 2. Canadian National Collection of Insects and Canadian Food Inspection Agency, K. W. Neatby Building, C. E. F., 960 Carling Avenue, Ottawa, Ontario, Canada K 1 A 0 C 6. bradley. sinclair @ canada. ca; https: // orcid. org / 0000 - 0001 - 6413 - 1606
  • 3. The University of Tennessee, Department of Entomology and Plant Pathology, 2505 E. J. Chapman Drive, 370 Plant Biotechnology Building, Knoxville, Tennessee, 37996, U. S. A. & jmoulton @ utk. edu; https: // orcid. org / 0000 - 0001 - 8760 - 3274

Description

Genus Austrothaumalea Tonnoir

Austrothaumalea Tonnoir, 1927: 109. Type-species: Austrothaumalea neozealandica Tonnoir (original designation).

Oterere McLellan, 1988: 573. Type-species: Oterere oliveri McLellan (original designation) syn. nov.

Diagnosis. Austrothaumalea is characterized as follows: absence of a distinct antealar ridge; proepisternal setae present; microtrichia of R 1 (+R 2+3) extending length of vein; R 2+3 crossvein usually situated closer to apex of R 1 (+R 2+3) than to origin of R 4+5; R 4+5 often with arch strongly produced; basal spur of CuA often present; gonocoxites slender, longer than wide; hypandrium broad; parameres fused medially.

Distribution. Argentina, Chile, New Caledonia, New Zealand and Australia (including Tasmania).

Notes on synonymy. McLellan (1988) erected the genus Oterere to include two species, O. oliveri McLellan and O. setipennis (Edwards). Sinclair (2008a,b) questioned the validity of the genus as several purported diagnostic characters (a well-developed spur on CuA, macrotrichia on R 4+5 and patterned wings) are also found in species of Austrothaumalea. Oterere is synonymized on the basis of these shared characters and through molecular data (unpublished data). The following taxonomic changes are proposed:

Austrothaumalea oliveri (McLellan), 1988: 573 (Oterere) comb. nov.

Austrothaumalea setipennis Edwards, 1930: 113 (Austrothaumalea) stat. rev.

Key to adult males of South American species of Austrothaumalea

1 Macrotrichia present on dorsal surface of wing vein M 1............................... A. setipennis Edwards stat. rev.

- Macrotrichia absent on wing vein M 1 (Fig. 2)............................................................... 2

2 Epandrium with posterolateral projections (Figs 4A, 5A)....................................... A. apicalis Edwards

- Epandrium without posterolateral projections (Figs 4 B–E, 5B–E)............................................... 3

3 Paramere spatulate, without lateral projections (Figs 4E, 5E).................................... A. spatulata Schmid

- Paramere cruciate, with lateral projections (Figs 4B,C 5B,C)................................................... 4

4 Lateral projections on paramere located toward apex, extended beyond apex of gonocoxal plate (Figs 4B, 5B)............................................................................................... A. chilensis Edwards

- Lateral projections on paramere located at mid-length, dorsal to gonocoxal plate (Figs 4C, 5C)........................................................................................................ A. fredericki Pivar sp. nov.

Notes

Published as part of Pivar, Robert J., Sinclair, Bradley J. & Moulton, John K., 2020, Revision of the South American species of Austrothaumalea Tonnoir (Diptera Thaumaleidae), pp. 509-526 in Zootaxa 4853 (4) on page 512, DOI: 10.11646/zootaxa.4853.4.2, http://zenodo.org/record/4411060

Files

Files (2.0 kB)

Name Size Download all
md5:414bfbabef39b5c35a5ea088f56f32d5
2.0 kB Download

System files (28.1 kB)

Name Size Download all
md5:9b51489af02f920fd9f491b9e38192d7
28.1 kB Download

Linked records

Additional details

Biodiversity

Family
Thaumaleidae
Genus
Austrothaumalea
Kingdom
Animalia
Order
Diptera
Phylum
Arthropoda
Scientific name authorship
Tonnoir. Two
Taxon rank
genus
Taxonomic concept label
Austrothaumalea Two, 1927 sec. Pivar, Sinclair & Moulton, 2020

References

  • Tonnoir, A. L. (1927) Descriptions of new and remarkable New Zealand Diptera. Records of the Canterbury Museum, 3, 101 - 112.
  • McLellan, I. D. (1988) A revision of New Zealand Thaumaleidae (Diptera: Nematocera) with descriptions of new species and a new genus. New Zealand Journal of Zoology, 15, 563 - 575. https: // doi. org / 10.1080 / 03014223.1988.10422636
  • Sinclair, B. J. (2008 a) A new species of Austrothaumalea Tonnoir from New Caledonia (Diptera: Thaumaleidae). In: Grandcolas, P. (Ed.), Zoologia Neocaledonica 6. Biodiversity studies in New Caledonia. Memoires du Museum national d'Histoire naturelle, Paris, France, 196, pp. 291 - 295.
  • Edwards, F. W. (1930) Part II: Bibionidae, Scatopsidae, Cecidomyiidae, Culicidae, Thaumaleidae (Orphnephilidae), Anisopodidae (Rhyphidae). In: Diptera of Patagonia and South Chile based on material in the British Museum (Natural History). Vol. 2. British Museum of Natural History, London, pp. 111 - 114.