Published January 16, 2018
| Version v1
Taxonomic treatment
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Walchia Ewing 1931
Authors/Creators
- 1. Zoological Institute, Russian Academy of Sciences, Universitetskaya embankment 1, St. Petersburg 199034, Russia.
Description
Walchia Ewing, 1931
Diagnosis
SIF = 4(5)B-N-3-2(1)110.0000; fsp = 7.6.6; fSt = 2.2; fCx = 1.1.1; Ip = 320–800. Cheliceral blade with tricuspid cap, but dorsal cuspid can look like large hook (Stekolnikov & Daniel 2012; Chaisiri et al. 2016); galeal setae nude; palpal claw 3-pronged; palpal femoral, genual and tibial setae usually nude; palpal tarsus with 4–5 branched setae. Scutum subpentagonal, with posterior margin angulate or rounded, AM setae absent, 2 AL and 2 PL setae, sensilla expanded, fusiform to globose. Eyes 2 + 2 or 1 + 1, rarely absent. Leg I 7-segmented, legs II and III 6-segmented; 2 (sometimes 1) genualae I; genuala II and III present (rarely absent); tibiala III absent.
Notes
Published as part of Stekolnikov, Alexandr A., 2018, Taxonomy and distribution of African chiggers (Acariformes, Trombiculidae), pp. 1-233 in European Journal of Taxonomy 395 on page 34, DOI: 10.5852/ejt.2018.395, http://zenodo.org/record/3829724
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Ewing
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Trombidiformes
- Family
- Trombiculidae
- Genus
- Walchia
- Taxon rank
- genus
- Taxonomic concept label
- Walchia Ewing, 1931 sec. Stekolnikov, 2018
References
- Ewing H. E. 1931. A catalogue of the Trombiculinae, or chigger mites, of the New World with new genera and species and a key to the genera. Proceedings of the United States National Museum 80: 1 - 19. https: // doi. org / 10.5479 / si. 00963801.80 - 2908.1
- Stekolnikov A. A. & Daniel M. 2012. Chigger mites (Acari: Trombiculidae) of Turkey. Zootaxa 3216: 1 - 104.
- Chaisiri K., Stekolnikov A. A., Makepeace B. L. & Morand S. 2016. A revised checklist of chigger mites (Acari: Trombiculidae) from Thailand, with the description of three new species. Journal of Medical Entomology 53 (2): 321 - 342. https: // doi. org / 10.1093 / jme / tjv 244