Systematic Parasitology

, Volume 87, Issue 1, pp 21–31 | Cite as

A new genus and two new species of chigger mites (Acari: Trombiculidae) from the Laotian rock-rat Laonastes aenigmamus Jenkins, Kilpatrick, Robinson & Timmins (Rodentia: Diatomyidae)



A new chigger mite genus Laotrombicula n. g. and two new species, Laotrombicula khunboromi n. sp. (type-species) and L. fangumi n. sp., are described from the Laotian rock-rat Laonastes aenigmamus Jenkins, Kilpatrick, Robinson & Timmins (Rodentia: Diatomyidae). The new genus is most similar to Trombiculindus Radford, 1948 and Leptotrombidium Nagayo, Miyagawa, Mitamura & Imamura, 1916 and differs from these genera by having the scutum of subhexagonal or semicircular shape vs widely rectangular; pinnatifid dorsocentral idiosomal setae vs foliaceous in Trombiculindus and unexpanded in Leptotrombidium; and by the presence of serrated longitudinal crests in the middle part of scutum.


Chigger Mite Dense Punctation Longitudinal Crest Idiosomal Seta Scutal Margin 
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I am grateful to Dr Andre V. Bochkov (ZIN) who provided me with the material. I express my appreciation to an anonymous reviewer for valuable comments. This research was supported by a grant from the Russian Foundation for Basic Research No. 13-04-00028-a.


  1. Bochkov, A. V., Abramov, A. V., Durden, L. A., Apanaskevich, D. A., Stekolnikov, A. A., Stanyukovich, M. K., Gnophanxay, S., & Tikhonov, A. N. (2011). Arthropod symbiotes of Laonastes aenigmamus (Rodentia: Diatomyidae). Journal of Parasitology, 97, 352–353.PubMedCrossRefGoogle Scholar
  2. Daniel, M. (1961). The bionomics and developmental cycle of some chiggers (Acariformes, Trombiculidae) in the Slovak Carpathians. Československá Parasitologie, 8, 31–118.Google Scholar
  3. Daniel, M., & Stekolnikov, A. A. (2003). To the fauna of chigger mites (Acari: Trombiculidae) parasitize bats in Cuba. Acarologia, 43, 29–37.Google Scholar
  4. Dawson, M. R., Marivaux, L., Li, C.-K., Beard, K. C., & Metais, G. (2006). Laonastes and the “Lazarus effect” in recent mammals. Science, 311, 1456–1458.PubMedCrossRefGoogle Scholar
  5. Domrow, R. (1962a). Four new species of Laurentella from S. E. Asia (Acarina, Trombiculidae). Acarologia, 4, 586–594.Google Scholar
  6. Domrow, R. (1962b). The Asian species of Whartonia (Acarina: Trombiculidae). Treubia, 26, 1–9.Google Scholar
  7. Domrow, R., & Nadchatram, M. (1962). Three new species of Doloisia from S. E. Asia (Acarina, Trombiculidae). Acarologia, 4, 577–585.Google Scholar
  8. Goff, M. L., Loomis, R. B., Welbourn, W. C., & Wrenn, W. J. (1982). A glossary of chigger terminology (Acari: Trombiculidae). Journal of Medical Entomology, 19, 221–238.PubMedGoogle Scholar
  9. Jenkins, P. D., Kilpatrick, C. W., Robinson, M. F., & Timmins, R. J. (2005). Morphological and molecular investigations of a new family, genus and species of rodent (Mammalia: Rodentia: Hystricognatha) from Lao PDR. Systematics and Biodiversity, 2, 419–454.CrossRefGoogle Scholar
  10. Kudryashova, N. I. (1998). Chigger mites (Acariformes, Trombiculidae) of East Palaearctic. Moscow: KMK Scientific Press, 342 pp. (In Russian).Google Scholar
  11. Nadchatram, M. (1963). Lorillatum, a new subgenus of Leptotrombidium, with description of a new species (Acarina: Trombiculidae). Pacific Insects, 5, 473–477.Google Scholar
  12. Nadchatram, M., & Domrow, R. (1964). The intranasal species of Laurentella (Acarina, Trombiculidae). Journal of Medical Entomology, 1, 29–39.PubMedGoogle Scholar
  13. Nadchatram, M., & Traub, R. (1964). New species of chiggers from rodents in Laos (Acarina, Trombiculidae). Journal of Medical Entomology, 1, 65–72.PubMedGoogle Scholar
  14. Stekolnikov, A. A. (2013). Leptotrombidium (Acari: Trombiculidae) of the World. Zootaxa, 3728, 1–173.Google Scholar
  15. Stekolnikov, A. A., & Daniel, M. (2012). Chigger mites (Acari: Trombiculidae) of Turkey. Zootaxa, 3216, 1–104.Google Scholar
  16. Vercammen-Grandjean, P. H. (1965). Revision of the genera Eltonella Audy, 1956 and Microtrombicula Ewing, 1950 with descriptions of fifty new species and transferal of subgenus Chiroptella to genus Leptotrombidium (Acarina, Trombiculidae). Acarologia, 7(Suppl), 34–257.PubMedGoogle Scholar
  17. Vercammen-Grandjean, P. H., & Langston, R. L. (1976). The chigger mites of the World (Acarina: Trombiculidae et Leeuwenhoekiidae). III. Leptotrombidium complex. San Francisco: George Williams Hooper Foundation, University of California, 1,061 pp.Google Scholar
  18. Yunker, C. E., & Jones, E. K. (1961). Endoparasitic Chiggers: I. Chiroptera, a new host order for intranasal chiggers, with descriptions of two new genera and species (Acarina: Trombiculidae). Journal of Parasitology, 47, 995–1,000.PubMedCrossRefGoogle Scholar

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© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Zoological InstituteSt. PetersburgRussia

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