Objective To investigate the species distribution and ecological habit of hematophagous midges in 10 counties or cities in the northeastern and midwestern Jiangxi province, China. Methods Hematophagous midges were captured in 10 counties or cities of Jiangxi (Lichuan, Zixi, Yingtan, Qianshan, Yushan, and Fuliang in the northeast as well as Yongfeng, Xiajiang, Anfu, and Jinggangshan in the midwest) using the light-trap method. The intact individuals of hematophagous midges were selected, and the specimens were slide-mounted in Canada balsam-phenol and subjected to taxonomic identification. Results A total 45 999 hematophagous midges belonging to 27 species in 2 genera were captured in the 10 counties or cities of Jiangxi from June to July, 2018, including 25 species in Culicoides and 2 species in Lasiohelea. Of the 27 species, 11 were recorded for the first time in Jiangxi:C. clavipalpis, C. flaviscutatus, C. innoxius, C. jacobsoni, C. luteolus, C. marginus, C. newsteadi, C. parahumeralis, C. tainanus, C. tenuipalpis, and Lasiohelea diaoluoensis. There were 26 species in the northeastern region and 13 species in the midwestern region. The dominant species were C. arakawai (45.31%) and C. oxystoma (16.71%). The dominant species in the northeastern region were C. arakawai (28.54%) and C. oxystoma (22.05%), and the dominant species in the midwestern region was C. arakawai (91.91%). The species distribution and dominant species varied in different places. The overall blood-sucking rate of 7 dominant species was 16.56%, of which, C. oxystoma had the highest blood-sucking rate (43.90%) and C. arakawai had the lowest blood-sucking rate (6.06%). The total light-trap index of hematophagous midges was 943.54/lamp in six sites, with the highest index in the cattle pen (1 297.78/lamp) and the lowest index in sheepfold (684.25/lamp). The blood-sucking rate and light-trap index varied with different midges species and places. Conclusion The faunal distribution and ecological habit of hematophagous midges in Jiangxi province have been mastered, which provides a reference for investigation as well as prevention and control of midge-borne diseases.
LIU Guo-ping, XU Hong-bin, CHENG Rui, ZHANG Shao-zai, CHEN Ke-fei, LIU Shan-shan, YAN Yu-han, LIANG Guo-dong
. An investigation of hematophagous midges in 10 counties or cities of Jiangxi province, China[J]. Chinese Journal of Vector Biology and Control, 2019
, 30(6)
: 661
-664
.
DOI: 10.11853/j.issn.1003.8280.2019.06.015
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