Eutrombicula

Eutrombicula is a genus of mites in the family Trombiculidae. The species of this genus are found throughout North America, and Australia.[1]

Eutrombicula
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Arachnida
Subclass:
Acari
Order:
Trombidiformes
Family:
Trombiculidae
Subfamily:
Trombiculinae
Tribe:
Trombiculini
Genus:
Eutrombicula

Ewing, 1938

The genus was first described by Henry Ellsworth Ewing in 1938.[2][3]

Two genera of chigger mites, each containing many species, are of concern to U.S. deployed military forces. They are Eutrombicula and Leptotrombidium. Chiggers in the genus Eutrombicula, such as Eutrombicula alfreddugesi, do not transmit any known pathogens to people, but they can cause irritating bites, dermatitis and severe itching when they feed on the unsuspecting host. They are widely distributed in the Western Hemisphere, and Europe. By comparison chiggers in the genus Leptotrombidium are the vectors of scrub typhus throughout Asia and portions of Australia. The bite of Leptotrombidium often does not itch, or at least not as intensely, as those of Eutrombicula. Also, a black necrotic lesion known as an eschar develops where the chigger fed.[4]

Australian species

Species in the genus, Eutrombicula, recognised at the Australian Faunal Directory are:[5]

  • Eutrombicula hirsti (Sambon, 1927)
  • Eutrombicula macropus (Womersley, 1936)
  • Eutrombicula rara (Walch, 1924)
  • Eutrombicula samboni (Womersley, 1939)
  • Eutrombicula sarcina (Womersley, 1944)
  • Eutrombicula southcotti (Womersley & Audy, 1957)
  • Eutrombicula thori (Womersley, 1952)
  • Eutrombicula tovelli (Womersley, 1952)
  • Eutrombicula vandiemeni (Domrow, 1962)

Non Australian species

Additional species listed by BioLib.[6]

  • Eutrombicula alfreddugesi (Oudemans, 1902)
  • Eutrombicula chiricahuae Bennett & Loomis, 1981
  • Eutrombicula conantae Goff, 1984
  • Eutrombicula gigarara (Brown, 1997)
  • Eutrombicula lawrencei (Wharton & Fuller, 1952)
  • Eutrombicula onyongensis Goff & Easton, 1989
  • Eutrombicula orlovensis Hushcha, 1966
  • Eutrombicula wichmanni (Oudemans, 1905)
  • Eutrombicula wuyiensis Song & Wang, 1986
  • Eutrombicula xixie (Wen & Xiang, 1984)
  • Eutrombicula yunkeri Geoff & Ingels, 1983

Further reading
  • A. B. Shatrov & N. I. Kudryashova (2008). "Taxonomic ranking of major trombiculid subtaxa with remarks on the evolution of host-parasite relationships (Acariformes: Parasitengona: Trombiculidae)". Annales Zoologici. 58 (2): 279–287. doi:10.3161/000345408X326591.

References
  1. "Eutrombicula Ewing, 1838". www.gbif.org. Retrieved 2022-01-14.
  2. "Australian Faunal Directory: Eutrombicula Ewing, 1938". biodiversity.org.au. Retrieved 2022-01-14.
  3. H E Ewing (1938). "A key to the genera of chiggers (mite larvae of the subfamily Trombiculinae) with descriptions of new genera and species". Journal of the Washington Academy of Sciences. 28 (2): 288–295. ISSN 0043-0439. JSTOR 24530204. Wikidata Q96063996.
  4. 2006, U.S. Armed Forces Pest Management Board -- Field Guide to Venomous and Medically Important Invertebrates Affecting Military Operations: Identification, Biology, Symptoms, Treatment - www.afpmb.org/sites/default/files/pubs/guides/field_guide.pdf
  5. "Australian Faunal Directory: Names List for Eutrombicula Ewing, 1938". biodiversity.org.au. Retrieved 2022-01-14.
  6. Ondrej Zicha. "BioLib: Biological library: Eutrombicula". www.biolib.cz. Retrieved 2022-01-14.


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