Recovery of Unengorged Larval Trombiculid Mites (Acarina) from Ground Holes

Kundin, W. D.; Nadchatram, M.; Upham, Robert W.; Rapmund, Garrison

doi:10.1038/2111213a0

Cited by 4 publications

(1 citation statement)

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“…A survey of free-living chiggers in the environment was also conducted at Ban Huai Muang village after chigger infestations on chickens were confirmed. Briefly, square black plastic plates were deployed on the ground in a formation of six grids in different habitats inside and around the village (Kundin et al 1966). The plates were carefully examined for chiggers within 10 minutes following deployment; the free-living chiggers were removed using a fine paintbrush and transferred into 80% ethanol.…”

Section: Chigger Collection and Examinationmentioning

confidence: 99%

On the taxonomy of chigger mites (Acariformes: Trombiculidae) parasitizing birds in Thailand and Malaysia, with the description of a new species

Koosakulnirand,

Rajasegaran,

Alkathiry

et al. 2023

Acarologia

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Chigger mites were collected from 65 bird species in different regions of Thailand and Malaysia. In total, 21 species were recorded. The previously unknown fauna of chiggers parasitizing shorebirds of Thailand included one new species, Neacariscus (Whartonacarus) andamanensis n. sp. as well as Neacariscus (Neacariscus) pluvius (Wharton, 1945) previously recorded only in Oceania; Neacariscus (Whartonacarus) shiraii (Sasa, Kano and Obata, 1952) (known from Oceania and Japan); and Neacariscus (Whartonacarus) sulae (Oudemans, 1910) and Schoengastia archaea (Taufflieb, 1960), both described from West Africa. Toritrombicula kirhocephales Goff, 1982 described from Papua New Guinea was for the first time recorded in Asia (Thailand). Neoschoengastia gallinarum (Hatori, 1920) and Helenicula comata (Womersley, 1952) were for the first time recorded in Thailand. Ascoschoengastia lorius (Gunther, 1939) was for the first time recorded in Malaysia. Finally, Ericotrombidium cosmetopode (Vercammen-Grandjean and Langston, 1971) described from free larvae, was for the first time recorded on a host (bird Pellorneum ruficeps Swainson); and Leptotrombidium miculum (Traub and Audy, 1954) was for the first time recorded on a bird host. New host species were recorded for a large part of the collected chigger species.

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Section: Chigger Collection and Examinationmentioning

confidence: 99%

On the taxonomy of chigger mites (Acariformes: Trombiculidae) parasitizing birds in Thailand and Malaysia, with the description of a new species

Koosakulnirand,

Rajasegaran,

Alkathiry

et al. 2023

Acarologia

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Seasonal Occurrence of Leptotrombidium deliense (Acari: Trombiculidae) Attached to Sentinel Rodents in an Orchard near Bangkok, Thailand

Frances

Watcharapichat

Phulsuksombati

et al. 1999

Journal of Medical Entomology

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Leptotrombidium deliense Walch that attached to sentinel laboratory mice and the roof rat, Rattus rattus (L.), placed in an orchard habitat near Bangkok, Thailand, were studied between April 1993 and April 1995. A single L. deliense larva was attached to only 1 of 51 laboratory mice placed in the study area between April and September 1993. Overall, 89/202 (44.1%) R. rattus had 1 or more L. deliense larvae attached, and Orientia tsutsugamushi (Hayashi), the etiologic agent for scrub typhus, was isolated from liver/spleen samples of 2/202 (1.0%) rats placed in an endemic area for a single night. A total of 474 L. deliense attached to sentinel R. rattus, of which 314 larvae successfully fed to repletion and were recovered, and 2 (0.6%) of these were naturally infected with O. tsutsugamushi. The occurrence of L. deliense was influenced by rainfall, with more chiggers attached to rodents in the wetter months of the year. The study showed that the risk of exposure to infection with O. tsutsugamushi is greater during the wetter months of the year, and that only a relatively small number of chigger attachments are needed to infect potential hosts.

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