Riethia Kieffer 1917
Authors/Creators
- 1. University of Bergen, University Museum of Bergen, Department of Natural History; P. O. Box 7800, NO- 5020 Bergen, Norway.
- 2. University of Gdańsk, Faculty of Biology, Department of Invertebrate Zoology and Parasitology, Laboratory of Systematic Zoology; Wita Stwosza 59, 80 - 308 Gdańsk, Poland.
Description
Updated key to Neotropical males of Riethia
1. Posterior margin of tergite IX with caudal projections resembling an inverted U (Brazil)........................................................................................ .. R. fazzari Trivinho-Strixino & Shimabukuro, 2018
- Posterior margin of tergite IX straight or rounded, without caudal projections..................................... 2
2. Superior volsella short, hook-like; inferior volsella subtriangular, tapering to narrowly rounded apex; with few, scattered, flattened, apically pectinate dorsal setae and 2–3 marginal scales apically (Brazil)............................................................................................... R. galilei Trivinho-Strixino & Shimabukuro, 2018
- Superior volsella long, curved or with distal half straight, digitiform; inferior volsella not subtriangular and tapering to narrowly rounded apex, with or without flattened, apically pectinate dorsal setae and/or marginal scales........................ 3
3. Inferior volsella strongly bent dorsally with apical part bluntly subtriangular with more than 20 broad flattened, apically pectinate setae covering dorsal surface, without marginal scales................................................ 4
- Inferior volsella not strongly bent dorsally, with marginal scales; without or with less than 20 broad flattened, apically pectinate setae............................................................................................... 6
4. Legs with dark bands; superior volsella curved, digitiform, apically pointed with microtrichia and apparently 2 weak, dorsal setae subapically (Argentina, Brazil, Chile)................................... R. truncatocaudata (Edwards, 1931)
- Legs without dark bands; superior volsella curved, stout, with long, narrowly triangular apex, with or without microtrichia, with 5–7 weak, dorsal setae................................................................................. 5
5. Abdomen brown, without dark bands; superior volsella with scattered microtrichia (Ecuador)..... R. ecuadoriensis sp. nov.
- Abdomen light brown, tergites with darker brown oral bands; superior volsella without microtrichia (Chile)................................................................................................. R. chilensis sp. nov.
6. Superior volsella with distal half straight; inferior volsella with about 10 broad scales in double row along inner margin, without broad, flattened, apically pectinate setae (Costa Rica) ......................... R. epleri Andersen & Sanz-laParra, 2023
- Superior volsella curved; inferior volsella with both marginal scales and broad, flattened, apically pectinate setae......... 7
7. Acrostichals absent; clypeus with less than 10 setae (Brazil)........... R. cauame Trivinho-Strixino & Shimabukuro, 2018
- Acrostichals present; clypeus with more than 25 setae........................................................ 8
8. Inferior volsella with 15 broad, flattened, apically pectinate setae dorsally and 3 broad marginal scales apically (Brazil)............................................................. R. manauara Neubern, Trivinho-Strixino & Silva, 2011
- Inferior volsella with 6 broad flattened, apically pectinate setae dorsally and 7 broad marginal scales apically (Brazil).................................................................. R. pantera Trivinho-Strixino & Shimabukuro, 2018
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Kieffer
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Diptera
- Family
- Chironomidae
- Genus
- Riethia
- Taxon rank
- genus
- Taxonomic concept label
- Riethia Kieffer, 1917 sec. Andersen, Malla & Giłka, 2024
References
- Trivinho-Strixino, S. & Shimabukuro, E. M. (2018) Brazilian Pseudochironomini (Diptera: Chironomidae) Part 2. New Pseudochironomus and Riethia species. Zootaxa, 4403 (2), 245 - 260. https: // doi. org / 10.11646 / zootaxa. 4403.2. 2
- Edwards, F. W. (1931) Chironomidae. Diptera of Patagonia and South Chile, 2, 233 - 331.
- Andersen, T. & Sanz-laParra, A. M. (2023) A new species of Riethia Kieffer, 1917 from ZUrqUi, Costa Rica (Chironomidae, Chironominae, Pseudochironomini). Norwegian Journal of Entomology, 70 (1), 29 - 33.
- Neubern, C. S. O., Trivinho-Strixino, S. & Silva, F. L. (2011) Riethia manauara n. sp., an Amazonian chironomid (Diptera: Chironomidae) from Brazil. Neotropical Entomology, 40 (5), 595 - 599. https: // doi. org / 10.1590 / S 1519 - 566 X 2011000500011