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Taxonomical insights and ecology of sandfly (Diptera, Psychodidae) species in six provinces of Northern Vietnam

Authors :
Vu Sinh Nam
Tran Hai Son
Tran Vu Phong
Tran Cong Tu
Tran Nhu Duong
Dang Duc Anh
Nguyen Thi Yen
Vu Thi Lieu
Ngo Khanh Phuong
Nguyen Viet Hoang
Hoàng Ngọc Anh
Cassan Cécile
Prudhomme Jorian
Depaquit Jérôme
Rahola Nil
Bañuls Anne-Laure
Source :
Parasite, Vol 28, p 85 (2021)
Publication Year :
2021
Publisher :
EDP Sciences, 2021.

Abstract

We studied sandfly (Diptera: Psychodidae) populations in six provinces of Vietnam. This work explores the diversity of sandfly species according to the province, as well as environment, and updated information on public health since leishmaniasis cases were reported in two provinces. Sandflies were collected using 428 CDC light traps from May 30 to October 13, 2016 and identified based on the morphology of the cibarium, pharynx and/or male genitalia or female spermathecae. A total of 2585 sandflies belonging to five genera and 13 identified species were collected. The main species were: the Sergentomyia barraudi group (12.53%), Se. sylvatica (9.63%) and Phlebotomus stantoni (3.95%). In all, 294 Sergentomyia specimens classified as Se. sp2 and Se. sp3 and a heterogeneous group, herein called Se. und_sp., showed unknown morphological characteristics requiring further studies. We provide detailed comments about morphological description and taxonomical identification in order to help standardization of sandfly classification in Southeast Asia. We observed differentiation according to the provinces in terms of density and species richness, with Lang Son having the highest density and Ninh Binh having the highest species richness. The majority of specimens were collected in rock caves and outdoors, suggesting mainly cavernicolous and exophilic characters of sandfly species in Northern Vietnam. However, specimens were also collected in intra- and peri-domiciliary sites. It is worth noting that Ph. stantoni was the main species found in dog sheds and indoors, and in particular in a leishmaniasis patient’s house.

Details

Language :
English
ISSN :
17761042
Volume :
28
Database :
Directory of Open Access Journals
Journal :
Parasite
Publication Type :
Academic Journal
Accession number :
edsdoj.79fc62102f64f20ad4f56f089d51db9
Document Type :
article
Full Text :
https://doi.org/10.1051/parasite/2021080