scholarly journals Naturally Occurring Microbiota Associated with Mosquito Breeding Habitats and Their Effects on Mosquito Larvae

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
H. A. K. Ranasinghe ◽  
L. D. Amarasinghe
Keyword(s):  
Abiotic Factors ◽  
Mosquito Species ◽  
Breeding Habitat ◽  
Larval Abundance ◽  
Mosquito Larvae ◽  
Natural Habitats ◽  
Individual Fitness ◽  
Naturally Occurring ◽  
Breeding Habitats ◽  
Mosquito Breeding

Immature mosquitoes are aquatic, and their distribution, abundance, and individual fitness in a particular breeding habitat are known to be dependent on mainly three factors: biotic factors, abiotic factors, and their interaction between each other and with other associated taxa. Mosquito breeding habitats harbor a diversified naturally occurring microbiota assemblage, and the biota have different types of interactions with mosquito larvae in those habitats. Those interactions may include parasitism, pathogenism, predation, and competition which cause the mortality of larvae, natural reduction of larval abundance, or alterations in their growth. Many microbiota species serve as food items for mosquito larvae, and there are also some indigestible or toxic phytoplanktons to larvae. However, when there is coexistence or mutualism of different mosquito species along with associated microbiota, they form a community sharing the habitat requirements. With the available literature, it is evident that the abundance of mosquito larvae is related to the densities of associated microbiota and their composition in that particular breeding habitat. Potential antagonist microbiota which are naturally occurring in mosquito breeding habitats could be used in integrated vector control approaches, and this method rises as an ecofriendly approach in controlling larvae in natural habitats themselves. To date, this aspect has received less attention; only a limited number of species of microbiota inhabiting mosquito breeding habitats have been recorded, and detailed studies on microbiota assemblage in relation to diverse vector mosquito breeding habitats and their association with mosquito larvae are few. Therefore, future studies on this important ecological aspect are encouraged. Such studies may help to identify field characteristic agents that can serve as mosquito controlling candidates in their natural habitats themselves.

scholarly journals Naturally Occurring Microbiota Associated with Mosquito Breeding Habitats and Potential Parasitic Species against Mosquito Larvae: A Study from Gampaha District, Sri Lanka

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
H. A. K. Ranasinghe ◽  
L. D. Amarasinghe
Keyword(s):  
Species Richness ◽  
Sri Lanka ◽  
Habitat Type ◽  
Lethal Effect ◽  
Breeding Habitat ◽  
Paddy Fields ◽  
Mosquito Larvae ◽  
Naturally Occurring ◽  
Breeding Habitats ◽  
Mosquito Breeding

A mosquito species has its own favourable requirements of abiotic and biotic characteristics including microbiota, in a breeding habitat. Some of the microbiota may cause parasitic or pathogenic effects to mosquito larvae such as species of viruses, parasitic bacteria, fungi, protists, entomopathogenic nematodes, and filamentous fungi. In Sri Lanka, there is a scarcity of information on microbiota associated with mosquito breeding habitats and their effect on mosquito larvae. Hence, the present study was conducted to determine microbiota species/taxa associated with a variety of mosquito breeding habitats in selected areas of the Gampaha District in Sri Lanka and the relationship, if any, the microbiota has with mosquito larva survival and breeding. Forty-five microbiota species belonging to 11 phyla were found from different mosquito breeding habitats with the highest percentage belonging to phylum Euglenozoa (27.89%). Species that belonged to the phylum Amoebozoa (1.22%) and Sarcodina (1.17%) had the lowest abundance, and each of its species richness was recorded as one. Philodina citrina followed by Monostyla bulla comprised 30.8% and 16.59%, respectively, of the total rotifer population. From the total microbiota, 25-50% existed as accidental while less than 25% rare, in the habitat type according to their abundance. Paddy fields had the highest species richness (17), evenness (23.52), Shannon-Weiner (66.64), and beta diversity (0.65) over 50% indicating high heterogeneity in microbiota composition among the habitats. Ciliated protists, namely, Vorticella microstoma, Zoothamnium spp., and Chilodinella sp., were identified as naturally occurring microbiota associated with Culex mosquito larvae that inhabited in paddy fields and associated irrigation canals. Only Vorticella microstoma caused a significant lethal effect on mosquito larvae. This study revealed that species of Cx. gelidus, Cx. pseudovishnui, Cx. tritaeniorhynchus, Cx. quinquefasciatus, and Cx. whitmorei served as hosts for V. microstoma where infectivity rate in Cx. tritaeniorhynchus reached 73.22. Chilodinella sp. selectively served as endoparasitic to Cx. gelidus larvae causing only 4.58% mortality, and invasive cysts of the pathogen were observed in the subcuticular layer of the host body. Even though Zoothamnium spp. were found on Cx. tritaeniorhynchus larvae, there was no lethal effect due to the attachment of the parasitic agent. The potential of these microbiotas in integrated vector controlling approaches in future perspectives is recommended.

scholarly journals Larval breeding habitats and ecological factors influence the species composition of mosquito (Diptera : Culicidae) in the parks of Dhaka city, Bangladesh

2018 ◽  
Vol 45 (2) ◽  
pp. 111-122 ◽  
Author(s):  
Afroza Sultana ◽  
Sharmin Hasan ◽  
Mosharraf Hossain ◽  
Abdul Alim ◽  
Mohammad Al Mamun ◽  
...  
Keyword(s):  
Mosquito Control ◽  
Mosquito Species ◽  
Ecological Factors ◽  
Control Program ◽  
Breeding Habitat ◽  
Coconut Shell ◽  
Larval Abundance ◽  
Tree Hole ◽  
Breeding Habitats ◽  
Tree Holes

Mosquito larval ecology is prerequisite for determining the larval abundance and species assemblage in mosquito control program. The study explored the association of five mosquito species with their breeding habitat diversity and species distribution in three selected parks from May to October, 2015. A total of 3217 mosquito larvae were reported from six breeding habitats, namely tree hole, leaf axils, water bottle, tire, drain and coconut shell. The frequency of the three species (Ae. aegypti, Ae. albopictus and Ar. subalbatus) coexistence was higher in tree holes (82.4%) than that of the other coexisting species. Pearson Chi-square result revealed that the association of species was significantly dependent on the breeding habitats. ANOVA further suggested that mosquito density varied across habitats where among the highest density of Cx. quinquefasciatus (3.87 ± 0.22) found in drain, followed by both Ae. albopictus (2.02 ± 0.17) and Ar. subalbatus (0.50 ± 0.09) in tree holes and Ae. aegypti (1.25 ± 0.23) in coconut shell. Cx. tritaeniorhynchus occurred in drain with the least observed density (0.03 ± 0.01). CCA results suggested that Aedes species were likely preferred to oviposit in shaded habitats where pH was associated with Ae. albopictus and dissolved oxygen was with Ae. aegypti and Ar. subalbatus. Culex species were positively associated with the habitats characterizing muddy bottom and emerging vegetation but not with any of the physico-chemical parameters. These findings concluded that ecological factors influence mosquito species to favor their breeding habitats can be helpful in controlling targeted vector species as well as the mosquito borne diseases.Bangladesh J. Zool. 45(2): 111-122, 2017

scholarly journals Spot Survei Entomologi Malaria di Daerah Epidemi di Kabupaten Kotabaru Kalimantan Selatan

2021 ◽  
Vol 20 (2) ◽  
pp. 82-89
Author(s):  
Muhammad Rasyid Ridha ◽  
Budi Hairani ◽  
Abdullah Fadilly
Keyword(s):  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Mosquito Species ◽  
Breeding Habitat ◽  
Malaria Vectors ◽  
Aedes Vexans ◽  
Culex Tritaeniorhynchus ◽  
Breeding Habitats ◽  
Mosquito Breeding ◽  
Suitable Area

Latar belakang: Indonesia menargetkan eliminasi malaria pada tahun 2030. Kabupaten Kotabaru merupakan daerah endemis malaria. Salah satu Desa Endemis yaitu Desa Batang Kulur yang terjadi peningkatan kasus signifikan sebanyak 12 kasus pada Bulan Maret 2019. Tujuan penelitian ini adalah untuk mengukur indeks entomologi, karakteristik, dan lingkungan habitat perkembangbiakan vektor malaria di Desa Batang Kulur.Metode: Kegiatan yang dilakukan yaitu penangkapan nyamuk dengan umpan orang, identifikasi dan pembedahan ovarium nyamuk untuk diketahui parusitas (pernah/tidak pernah bertelur) yang digunakan untuk memprediksi umur  dan survei habitat perkembangbiakan vektor malaria.Hasil: Spesies dan komposisi nyamuk yang ditemukan yaitu Aedes vexans, Aedes albopictus, Culex quinquefasciatus, Culex tritaeniorhynchus, Culex vishnui, Mansonia dives dan Anopheles leucosphyrus. Kepadatan nyamuk Anopheles leucosphyrus 0,30 dan kepadatan permalam yaitu 2,67 dengan peluang hidup perhari 95% serta perkiraan umur populasi 21,54 hari. Fluktuasi Anopheles leucosphyrus mulai muncul pada jam 22.00 dan kembali meningkat pada jam 04.00. Tempat perindukan nyamuk yang ditemukan yaitu Habitat perkembang biakan nyamuk yang ditemukan ada 2 yaitu kolam dan mata air.Simpulan: Terdapat habitat perkembang biakan yang mendukung, peluang hidup 95% dan potensi umur nyamuk lebih dari masa inkubasi Plasmodium sehingga di Desa Batang Kulur merupakan daerah yang cocok untuk perkembangan vektor malaria. ABSTRACT Title: Investigation of Spot Survey of Malaria Entomological in Epedemic Areas in Kotabaru District, South KalimantanBackground: Indonesia is targeting malaria elimination by 2030. Kotabaru Regency is a malaria endemic area. One of the endemic villages, Batang Kulur Village, saw a significant increase of 12 cases in March 2019. The purpose of this study was to measure the entomological index, characteristics, and environment of the malaria vector breeding habitat in Batang Kulur Village.Method: Activities carried out include catching mosquitoes by baiting people, telephone and surgery for the mosquito ovaries to determine of parity (parous /nullyparous) which are used to predict age and survey the breeding habitats for malaria vectors.Result: The mosquito species and composition found were Aedes vexans, Aedes albopictus, Culex quinquefasciatus, Culex tritaeniorhynchus, Culex vishnui, Mansonia dives and Anopheles leucosphyrus. The density of the Anopheles leucosphyrus was 0.30 and the per night density was 2.67 with a 95% chance of survival per day and an estimated population age of 21.54 days. Anopheles leucosphyrus fluctuations began to appear at 22.00 and again increased at 04.00. The mosquito breeding places found were 2 mosquito breeding habitats, namely ponds and springs.Conclusion: There is a suitable breeding habitat, a 95% chance of survival and a potential age of mosquitoes that is more than the plasmodium incubation period so that in Batang Kulur Village is a suitable area for the development of malaria vectors. 

scholarly journals Naturally Occurring Microbiota in Dengue Vector Mosquito Breeding Habitats and Their Use as Diet Organisms by Developing Larvae in the Kandy District, Sri Lanka

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
H. A. K. Ranasinghe ◽  
L. D. Amarasinghe
Keyword(s):  
Sri Lanka ◽  
Food Limitation ◽  
Mosquito Larvae ◽  
Dengue Vector ◽  
Additional Tool ◽  
Food Items ◽  
Naturally Occurring ◽  
Breeding Habitats ◽  
Vector Mosquito ◽  
Mosquito Breeding

Naturally occurring microbiota in mosquito larval habitats are among biotic factors which affect the population dynamics of developing larvae. Many microbiota species serve as food items for vector mosquito larvae, and food limitations within habitats adversely affect larval survival, developmental rate, adult fitness, and thereby vector competence. Therefore, identification of microbiota as associates with larvae reveals their relationship between each other as parasites, pathogens, epibionts, or diet organisms. Analysis of associated microbiota species in the dengue vector larval breeding habitats ( n = 40 ) and the mosquito larval gut content were conducted in Kandy District in Sri Lanka. Study revealed that a total of 22 microbiota species belong to nine phyla (Amoebozoa, Bacillariophyta, Ciliophora, Chlorophyta, Sarcodina, Cyanobacteria/Cyanophyta, Euglenozoa, Ochrophyta/Heterokontophyta, and Rotifera) were encountered from different Ae. aegypti mosquito breeding habitats while 26 microbiota species that belonged to ten phyla were recorded from Ae. albopictus mosquito breeding habitats with one additional phylum Arthropoda. Considering Ae. aegypti breeding habitats, only Philodina citrina in low roof gutters existed as constant species. Considering Aedes albopictus breeding habitats, Volvox aureus in plastic containers, Lecane luna in coconut shells, Phacus pleuronectes in concrete slabs, and Pinnularia sp. in tree holes existed as constant species. The rest of the microbiota existed as common or accidental/rare species in a variety of habitat types. The Shannon-Weiner diversity (21.01 and 19.36) and gamma diversity (eight and eight) of the microbiota associated with Ae. aegypti and Ae. albopictus larvae, respectively, in ponds were found to be higher than other types of breeding habitats recorded during the study. Twelve microbiota species were recorded from larval gut analysis as food organisms of both species of mosquito larvae. However, the distribution of gut microbiota species differed between Ae. aegypti and Ae. albopictus ( Chi − square = 21.294 , P = 0.002 ). Identification of microbiota as food items of vector mosquito larvae led to a focus on larval food limitation by introducing food competitors, which could be a potential additional tool for integrated vector control approaches within the country.

scholarly journals Diversity and Species Composition of Microbiota Associated with Mosquito Breeding Habitats: A Study from Kurunegala District in Sri Lanka

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
L. D. Amarasinghe ◽  
H. A. K. Ranasinghe
Keyword(s):  
Sri Lanka ◽  
Habitat Type ◽  
Lethal Effect ◽  
Common Species ◽  
Breeding Habitat ◽  
Mosquito Larvae ◽  
Breeding Habitats ◽  
Mosquito Breeding ◽  
Characteristic Features ◽  
The Relationship

The pool of microbiota associated with mosquito breeding habitats varies with the habitat type and its characteristic features. The pool of microbiota in a given mosquito breeding habitat can include free living, symbiotic, noncompetitive, parasitic, predatory, and toxin producing species. However, in Sri Lanka the studies on the microbiota associated with mosquito breeding habitats are scarce. The present study was conducted to identify microbiota species/taxa associated with a variety of mosquito breeding habitats in selected areas of the Kurunegala district in Sri Lanka to determine the relationship, if any, the microbiota has with mosquito larvae breeding. A total of 44 microbiota species/taxa belonging to 10 phyla, namely, Bacillariophyta, Charophyta, Chlorophyta, Cyanobacteria/Cyanophyta, Ochrophyta/Heterokontophyta, Amoebozoa, Euglenozoa, Ciliophora, Arthropoda, and Rotifera were identified. Vorticella microstoma (Ciliophora) showed a constant occurrence frequency in rice field habitats occupied mainly by Culex tritaeniorhynchus while the rest of the species had an accidental or rare frequency of occurrence. Nineteen species/taxa were identified as common species. Trophont stages of Vorticella microstoma and Zoothamnium spp. were found attached to the cuticle of mosquito larvae but only V. microstoma caused a lethal effect. The autotrophic protist, Euglena geniculate, Closterium spp., and Pinnularia spp. served as the diet items to mosquito larvae. The majority of the microbiota identified had no observable effect on mosquito larvae breeding.

The biting flies of the Kano Plains, Kenya: Part II. Larval habitats of common mosquito species (Dipt., Culicidae)

1971 ◽  
Vol 61 (2) ◽  
pp. 299-307 ◽  
Author(s):  
Canute P. M. Khamala
Keyword(s):  
Culex Pipiens ◽  
Mosquito Species ◽  
Breeding Site ◽  
Breeding Sites ◽  
Larval Habitats ◽  
Emergent Plants ◽  
Culex Pipiens Fatigans ◽  
Breeding Habitats ◽  
Mosquito Breeding ◽  
Selection Of

Six natural terrestrial mosquito breeding habitats were recognised in the Kano Plains of Kenya by their condition, i.e. temporary or permanent, presence or absence of emergent plants, and by the chemical and physical characteristics of their water. Between September 1968 and March 1970, 13 mosquito species were found breeding in these habitats. Most species were restricted to a few habitats; only four showed a wide occurrence, being found in at least four. Anopheles gambiae Giles and Culex annulioris Theo. exploited all six habitats, suggesting that the characteristics studied were probably not critical to their selection of a breeding site. Mansonia and Coquillettidia spp. were restricted to habitats with some plants, indicating their dependence on such vegetation for respiration and protection. The indiscriminate selection of breeding sites by disease vectors, e.g. A. gambiae, A. pharoensis Theo. and Culex pipiens fatigans Wied., is worth noting in irrigation schemes.

scholarly journals Fauna associated with Malayan filariasis transmission in Banyuasin, South Sumatra, Indonesia

2021 ◽  
pp. 1954-1959
Author(s):  
Budi Mulyaningsih ◽  
Sitti Rahmah Umniyati ◽  
Suwarno Hadisusanto ◽  
Erwin Edyansyah
Keyword(s):  
Mosquito Species ◽  
Polymerase Chain Reaction Method ◽  
Breeding Habitat ◽  
Chain Reaction ◽  
Cross Sectional ◽  
Blood Samples ◽  
Breeding Habitats ◽  
Polymerase Chain ◽  
Reservoir Hosts ◽  
Mansonia Uniformis

Background and Aim: Brugia malayi is known to be zoonotically important because it can be transmitted from animals (mammals and primates) to humans or from humans to humans through mosquito vectors. This study was conducted to explore the fauna associated with Malayan filariasis transmission in Sedang village, Suak Tapeh District, Banyuasin Regency, South Sumatra Province, Indonesia. Materials and Methods: A cross-sectional research design with an observational and analytical approach was applied in this study, and it was conducted in May 2018. Mosquitoes were collected twice using human bait both inside and outside the house from 6:00 p.m. to 6:00 a.m. The presence of competitors, predators, and reservoir hosts in the areas of five breeding habitats of Mansonia spp. was observed. The presence of microfilaria was confirmed under a microscope in night blood samples of inhabitants and cats. The presence of infective larvae (L3) of B. malayi was identified microscopically and based on the polymerase chain reaction method in female Mansonia mosquitoes. Results: A total of 12 mosquito species were found, among which Mansonia uniformis was the dominant mosquito, and the predominant competitor was Mansonia annulifera. Dragonflies, as predators were found in two breeding habitats and fish were found in one breeding habitat. The L3 of B. malayi were not identified in the mosquitoes, and the microfilariae of B. malayi were not found in the blood samples of inhabitants and cats. Conclusion: Although Mansonia mosquito population was abundant in Banyuasin Regency, the mosquito was not confirmed as an intermediate host of B. malayi, and the cat was not confirmed as a reservoir of B. malayi in the location.

scholarly journals Diversity Of Mosquito Species Ovipositing In Different Zones of Light Intensity Within Limestone Caves In Thailand

2018 ◽  
Vol 34 (3) ◽  
pp. 182-189
Author(s):  
Thavin Bodharamik ◽  
Waraporn Juntarajumnong ◽  
Chamnarn Apiwathnasorn ◽  
Sungsit Sungvornyothin ◽  
Uraiwan Arunyawat
Keyword(s):  
Climate Change ◽  
Site Selection ◽  
Abiotic Factors ◽  
Mosquito Species ◽  
Population Abundance ◽  
Oviposition Site Selection ◽  
Natural Habitats ◽  
Mosquito Abundance ◽  
Mosquito Oviposition ◽  
Annual Distribution

ABSTRACT Climate change and human activity affect the geographical and annual distribution and population abundance of mosquitoes. As natural habitats are reduced, it is hypothesized that mosquitoes may seek refuge in more stable environments such as cave habitats. Therefore, we explored the species diversity of mosquitoes exploiting cave habitats in Thailand. Ten species belonging to 4 genera were collected, of which none were considered to be true cave-dwelling species (Troglobiont). The known cavernicolous species, Aedes cavaticus, was observed to oviposit outside of the cave and therefore should be categorized as a subtroglophilic species. Other species were also oviposited inside the cave but should be regarded as trogloxenic species. There was no clear association between environmental factors and mosquito abundance inside the 4 limestone caves, except for Ae. cavaticus, which was positively correlated with rainfall. This study indicates that different biotic or abiotic factors may be involved in mosquito oviposition site selection inside caves.

scholarly journals Larvicidal Effect of Vorticella microstoma (Ehrenberg, 1830) on Mosquito Larvae, and Morphological Changes under Induced Environmental Conditions

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Achini Koshila Ranasinghe ◽  
L. D. Amarasinghe
Keyword(s):  
Environmental Conditions ◽  
Biocontrol Agent ◽  
Morphological Changes ◽  
Weather Conditions ◽  
Mosquito Larvae ◽  
Larvicidal Effect ◽  
Breeding Habitats ◽  
Mosquito Breeding ◽  
Tropical Weather ◽  
A Current

Development of microbiota assemblage usually occurs in all most all domestic and peridomestic mosquito breeding habitats. There may be parasitic, epibiont, pathogenic, or even predatory species among this biota, and to investigate their potential against the mosquito population is worth studying. This may contribute to formulating environmentally agreeable approaches in controlling mosquitoes which is a current need. Vorticella spp. is a peritrich ciliate, and its trophont stage has become epibiont to certain biota. Further, their existence in seasonal water bodies that dry off during drought in tropical weather conditions is not known. Therefore, the potential of the larvicidal effect of Vorticella microstoma on different species of mosquito larvae was studied. We found that V. microstoma causes the 100% death of the third instar larvae of Culex tritaeniorhynchus (Giles, 1901) within 48 h of exposure. In contrast to that, this species did not cause any mortality to Aedes albopictus (Skuse, 1894) and Aedes aegypti (Linnaeus in Hasselquist, 1762) mosquito larvae in repeated trials. The dynamics of polymorphism of V. microstoma was studied under induced environmental conditions. V. microstoma remained as trophont stage throughout at room temperature (25±2°C). When the temperature was reduced to 6°C, V. microstoma settled in the cyst stage. Evidently, V. microstoma is a good biocontrol agent of Culex species mosquito larvae, and they able to overcome drought periods in cyst forms. The findings of this study would be considered as the first step for a new avenue to work on environmentally agreeable manner in reducing the Culex spp. mosquito populations.

scholarly journals Kepadatan dan Keragaman Spesies Nyamuk di Desa Jagaraga Kecamatan Buana Pemaca dan Desa Sukajaya, Kecamatan Buay Rawan, Kabupaten Ogan Komering Ulu Selatan

2020 ◽  
Vol 14 (1) ◽  
pp. 37-48
Author(s):  
Yahya Yahya ◽  
R Irpan Pahlepi ◽  
Rahayu Hasti Komariah ◽  
Desy Asyati ◽  
Surakhmi Oktavia
Keyword(s):  
Population Density ◽  
Dominant Species ◽  
Feeding Habits ◽  
Rice Fields ◽  
Breeding Habitat ◽  
Mosquito Larvae ◽  
Breeding Habitats ◽  
Human Landing ◽  
Collection Methods ◽  
Resting Behavior

Abstract The study on mosquito diversity was conducted in Jagaraga Village, Buana Pemaca  Subdistrict and Sukajaya Village, Buay Rawan Subdistrict of Ogan Komering Ulu Selatan Regency in 2017. This study aimed to analyze population density of mosquitoes, feeding habits and resting behavior of mosquito, and identify the types of potential /specific breeding habitat of mosquito larvae in OKU Selatan regency. Mosquitoes were collected during the night for 12 hours, started at 06.00 p.m. until 06.00 a.m. by human landing, resting, and cattle landing collection methods. The indoor density of mosquitoes ranged from 0.04-3.96 mosquitoes/person/hour with the highest density of 10,7 on Cx.tritaeniorhyncus. Species of mosquitoes collected in Sukajaya Village were more diverse than in Buana Pemaca Village. There were 12 species and the most dominant species was Cx. tritaeniorhyncus (68.09%), Breeding habitats were identified in rice fields, bricks pit, puddle marsh, and flow of rice fields. Abstrak Penelitian tentang keragaman nyamuk telah dilakukan Di Desa Jagaraga Kecamatan Buana Pemaca dan Desa Sukajaya Kecamatan Buay Rawan Kabupaten OKU Selatan pada tahun 2017. Penelitian ini bertujuan untuk mengetahui angka kepadatan populasi nyamuk yang tertangkap, menganalisis kebiasaan mencari makan danperilaku beristirahat masing-masing spesies nyamuk yang tertangkap serta mengetahui jenis-jenis habitat perkembangbiakan potensial bagi larva nyamuk yang ada di Kabupaten OKU Selatan. Penangkapan nyamuk dilakukan selama 12 jam dimulai dari pukul 18.00 WIB malam hingga pukul 06.00 pagi, menggunakan metode human landing collection, resting collection dan penangkapan di sekitar kandang ternak. Spesies nyamuk yang tertangkap 12 spesies dan yang paling dominan yaitu Culex tritaeniorhyncus(68,9%). Kepadatan nyamuk yang menggigit per orang per jam (MHD) di dalam rumah berkisar antara 0,04-3,96 ekor/orang/jam. Kepadatan rata-rata paling tinggi pada nyamuk Cx. tritaeniorhyncus 10,7 ekor. Habitat perkembangbiakan berupa sawah, lubang galian tanah liat untuk batu bata, kobakan, aliran sawah.

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