Cheladonta Lipovsky, Crossley and Loomis, 1955

Stekolnikov, Alexandr & Daniel, Milan, 2012, 3216, Zootaxa 3216, pp. 1-104 : 82

publication ID	11755334
DOI	https://doi.org/10.5281/zenodo.5250589
persistent identifier	https://treatment.plazi.org/id/1815879E-CD2D-FFA8-FF13-709CFE73BC39
treatment provided by	Felipe (2021-08-24 00:44:05, last updated by Plazi 2023-11-04 14:43:41)
scientific name	Cheladonta Lipovsky, Crossley and Loomis, 1955
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Genus Cheladonta Lipovsky, Crossley and Loomis, 1955

Cheladonta Lipovsky et al., 1955: 137 ; Lakshana 1969: 135; Kolebinova 1992: 145; Kudryashova 1979: 78; 1998: 261.

Type species: Cheladonta micheneri Lipovsky, Crossley and Loomis, 1955 , by original designation.

Diagnosis. SIF = 4B-N(B)-(3–12)-2110.0000. Eyes 2 + 2, 1 + 1 or absent. Scutum trapezoidal, with straight, concave or slightly convex posterior margin. Sensilla clavate to globose, covered with setules. Two pairs of humeral setae.

Hosts. Small mammals (mainly rodents).

Distribution. South Holarctic (up to 50° N) and Indomalayan zone.

Species included. Cheladonta bicoxalae Wen, Zhou, Chen, Wang and Zhang, 1984 , Ch. brevipalpis ( André, 1946) , Ch. costulata ( Willmann, 1952) (= Cheladonta styriaca Kepka, 1958 ), Ch. crossi Lipovsky, Crossley and Loomis, 1955 , Ch. deqinensis Yu, Hu and Zhang, 1983 , Ch. firdousii Kudryashova, Neronov and Farang-Azad, 1978 , Ch. flava ( Schluger, 1955) , Ch. globosea Yang, 1992 , Ch. ikaoensis Sasa, Sawada, Kano, Hayashi and Kumada, 1951 , Ch. iraniensis Vercammen-Grandjean, Rohde and Mesghali, 1970 , Ch. lushchekinae Kudryashova, 1998 , Ch. micheneri Lipovsky, Crossley and Loomis, 1955 , Ch. neda Schluger, Grokhovskaya , Dang-Van-Ngu, Nguen-Xuan-Hoe and Do-Kinh-Tung, 1960, Ch. ouachitensis Lipovsky, Crossley and Loomis, 1955 , Ch. pannonica ( Kepka, 1956) .

Remarks. Following Kudryashova (1998), we do not support including the genus Susa Audy and Nadchatram, 1960 into Cheladonta as a subgenus ( Lakshana 1969; Nadchatram & Dohany 1974); therefore, Cheladonta is considered here in sensu stricto.

Almost in all cases, collections of the genus Cheladonta include engorged mites only, i.e. an unfavorable condition for taxonomic examination. In such specimens, the scutum is usually deformed and characters of gnathosoma are quite often indistinguishable. For this reason, revision of this genus is confronted with difficulties. In Turkey, we found several forms of Cheladonta , clearly different in some quantitative characters, but their exact identification seems impossible, because of the poor condition of the specimens. Such forms are described below as Cheladonta sp. 1 and sp. 2.

References

Andre, M. (1946) Sur une nouvelle forme larvaire de Neoschoengastia (Acarien) parasite de Meriones shawi. Bulletin de la Musee d'Histoire Naturelle de Paris, 2 - e Serie, 18, 162 - 164.

Audy, J. R. & Nadchatram, M. (1960) Malaysian Parasites XXXIX. Susa, new genus related to Ascoschoengastia Ewing (Acarina, Trombiculidae) with descriptions of two new species. Studies from the Institute for Medical Research, Federation of Malaya, 29, 154 - 162.

Kepka, O. (1956) Ein Beitrag zur Verbreitung und Biologie der Trombiculinae (Acari: Fam. Trombiculidae) im Burgenland. Wissenschaftliche Arbeiten aus dem Burgenland, 16, 1 - 29.

Kepka, O. (1958) Eine neue Art des Genus Euschoengastia (Trombiculidae, Acari) aus Italien. Zeitschrift fur Parasitenkunde, 18, 423 - 427.

Kolebinova, M. G. (1992) Acariformes, Trombidioidea, Trombiculidae, Leeuwenhoekiidae. In Aedibus Academie Scientiarium Bulgaricae, Sofia, 172 pp. [In Bulgarian]

Kudryashova, N. I., Neronov, V. M. & Farang-Azad, A. (1978) Mites of the family Trombiculidae (Acariformes) from small mammals from Iran. Sbornik Trudov Zoologicheskogo Muzeya MGU, 16, 92 - 180. [In Russian]

Kudryashova, N. I. (1979) The contemporary state of study of trombiculid mites (Acariformes, Trombiculidae) of the USSR fauna. Itogi Nauki i Tekhniki, Zooparazitologiya, 5, 5 - 112. [In Russian]

Kudryashova, N. I. (1998) Chigger mites (Acariformes, Trombiculidae) of East Palaearctics. KMK Scientific Press, Moscow, 342 pp. [In Russian]

Lakshana, P. (1969) Susa Audy and Nadchatram, a subgenus of Cheladonta Lipovsky et al. (new status), with descriptions of two new species of Cheladonta from Thailand. Journal of Medical Entomology, 6, 135 - 139.

Lipovsky, L. J., Crossley, D. A. & Loomis, R. B. (1955) A new genus of chigger mites (Acarina, Trombiculidae). Journal of Kansas Entomological Society, 28, 136 - 142.

Nadchatram, M. & Dohany, A. L. (1974) A pictorial key to the subfamilies, genera and subgenera of Southeast Asian chiggers (Acari, Prostigmata, Trombiculidae). Bulletin from the Institute for Medical Research, Federation of Malaysia, 16: 1 - 67.

Sasa, M., Sawada, T., Kano, R., Hayashi, S. & Kumada, N. (1951) Studies on tsutsugamushi, part 7. Two new species collected in Gunma Prefecture. Tokyo Medical Journal, 68, 7 - 8. [In Japanese]

Schluger, E. G. (1955) Superfamily Trombeae. I. Family Trombiculidae. 1. Subfamily Trombiculinae - chigger mites. In: Kleshchi gryzunov fauny SSSR. Izdatel'stvo AN SSSR, Moscow, Leningrad, pp. 188 - 217. [In Russian]

Vercammen-Grandjean, P. H., Rohde, C. J. & Mesghali, H. (1970) Twenty larval Trombiculidae (Acarina) from Iran. The Journal of Parasitology, 56, 773 - 806.

Wen, T., Zhou, M., Chen, N., Wang, Y. & Zhang, Z. (1984) Two new species of sand mites with club-shaped sensillae (Acariformes: Trombiculidae). In: Wen, T. (Ed.) Sand mites of China (Acariformes: Trombiculidae and Leeuwenhoekiidae). Hue Lin Publishing House, Peking, pp. 99 - 101. [In Chinese]

Willmann, C. (1952) Parasitische Milben an Kleinsaugern. Zeitschrift fur Parasitenkunde, 15, 392 - 428.

Yang, X. (1992) Three new species of Trombiculinae from Qinghai, China (Acarina: Trombiculidae). Acta Zootaxonomica Sinica, 17, 303 - 309. [In Chinese]

Yu, Z., Hu, G. & Zhang, L. (1983) Seven new species of chigger mites from China (Acarina: Trombiculidae). Acta Zootaxonomica Sinica, 8, 63 - 74. [In Chinese]