Species composition and monthly activity of Anopheline mosquitoes (Diptera: Culicidae) in Bashagard county, southeast of Iran
عنوان دوره: دومین کنگره بین المللی حشره شناسی ایران
نویسندگان
چکیده
Introduction: Malaria is a major mosquito-borne disease in tropical and sub-tropical countries. It is one the most important health problem in the south and southeast of Iran, especially in the eastern parts of Hormozgan province. Bashagard county is one of the important malaria endemic areas in southeast of Iran. Considering the importance of anopheline mosquitoes in malaria transmission and vector control strategy for prevention and control of the disease, this study was conducted to determine the species composition and seasonal activity of Anopheline mosquitoes in Bashagard County.
Materials and methods: This cross-sectional study was conducted during 2014-2015. The Anopheline larvae were collected using standard dipping method. Specimens were preserved in test-tubes containing lacto-phenol and transferred to the laboratory. In the laboratory, each of third and fourth instar anopheline larvae were individually mounted on a microscope slide and identified to species by morphological criteria. In this study, adult mosquitoes were collected using Total catch and Hand catch methods and their species composition and monthly abundance was determined. The specimens were identified using a morphology based-key.
Results: In this study, In total 1211 anopheline mosquitoes, including 1055 larvae and 156 adults were collected from 12 larval habitats and residental places, respectively. They comprised of nine species: Anopheles moghulensis (28%), An. dthali (18.90%), An. culicifacies (16.60%), An. stephensi (15.39%), An. turkhudi (9.83%), An. superpictus (9.66%), An. apoci (1.41%), An. fluviatilis (0.16%) and An. sergenti (0.08%). The most abundant species was An. moghulensis which collected from all the study areas. According to our finding in Bashagard county, adult anopheline mosquitoes showed a main peak of indoor-resting density during April - May and a smaller peak in Ocober – November. Anopheline mosquitoes larvae showed two peaks of activity in April and October.
Conclusion: This study showed a high anopheline species richness in Bashagard so that five out of eight anopheline species which are known to be malaria vectors in Iran collected from this County. In addition, conduction of insecticide residual spraying aginest endophilic species and application of larval control measures before the peak activity of malaria vectors can play an important role in elimination program in this county.
Materials and methods: This cross-sectional study was conducted during 2014-2015. The Anopheline larvae were collected using standard dipping method. Specimens were preserved in test-tubes containing lacto-phenol and transferred to the laboratory. In the laboratory, each of third and fourth instar anopheline larvae were individually mounted on a microscope slide and identified to species by morphological criteria. In this study, adult mosquitoes were collected using Total catch and Hand catch methods and their species composition and monthly abundance was determined. The specimens were identified using a morphology based-key.
Results: In this study, In total 1211 anopheline mosquitoes, including 1055 larvae and 156 adults were collected from 12 larval habitats and residental places, respectively. They comprised of nine species: Anopheles moghulensis (28%), An. dthali (18.90%), An. culicifacies (16.60%), An. stephensi (15.39%), An. turkhudi (9.83%), An. superpictus (9.66%), An. apoci (1.41%), An. fluviatilis (0.16%) and An. sergenti (0.08%). The most abundant species was An. moghulensis which collected from all the study areas. According to our finding in Bashagard county, adult anopheline mosquitoes showed a main peak of indoor-resting density during April - May and a smaller peak in Ocober – November. Anopheline mosquitoes larvae showed two peaks of activity in April and October.
Conclusion: This study showed a high anopheline species richness in Bashagard so that five out of eight anopheline species which are known to be malaria vectors in Iran collected from this County. In addition, conduction of insecticide residual spraying aginest endophilic species and application of larval control measures before the peak activity of malaria vectors can play an important role in elimination program in this county.
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