scholarly journals Do Different LED Colours Influence Sand Fly Collection by Light Trap in the Mediterranean?

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Gabriella Gaglio ◽  
Ettore Napoli ◽  
Francesca Arfuso ◽  
Jessica Maria Abbate ◽  
Salvatore Giannetto ◽  
...  
Keyword(s):  
Light Trap ◽  
Mediterranean Area ◽  
Sand Fly ◽  
Sand Flies ◽  
Light Traps ◽  
Trap Design ◽  
Phlebotomine Sand Flies ◽  
Positive Effects ◽  
Uv Led ◽  
The Mediterranean

Light traps represent the most used attractive system to collect and monitor phlebotomine sand flies. Recent studies have suggested that light traps can be easily upgraded by the use of light-emitting diode (LED) with positive effects on trap design, weight, and battery life. However, scant data on the effect of different LED colours on the attractiveness to phlebotomine sand fly species are available in literature. In this study, the capture performances of light traps equipped with different LED colours on phlebotomine sand fly species indigenous in the Mediterranean area were evaluated. Phlebotomine sand fly collections were performed using a classical light trap (CLT), equipped with a traditional incandescent lamp, and five Laika 4.0 light traps supplied, each with LED of different colours and wavelengths: (i) white; (ii) red; (iii) green; (iv) blue; (v) UV. Light traps were set for three consecutive nights fortnightly from May to October 2017 and climate data recorded using a meteorological station. A total of 411 phlebotomine sand flies (191 males and 220 females), belonging to three different species, namely, Phlebotomus perniciosus (n= 298, 141 males and 157 females), Sergentomyia minuta (n=110, 48 males and 62 females), and Phlebotomus neglectus (n=3, 2 males and 1 females) were collected. Abundance of capture was influenced by colours of LED and time. The highest number of phlebotomine sand flies was captured on June (P<0.01) and by UV LED (P<0.01). As regard to species, P. perniciosus was mainly captured by UV LED on June (P<0.01). No effect of time (P>0.05) or LED colour (P>0.05) was recorded for S. minuta and P. neglectus. According to the results of the present study light trap equipped with UV LED can represent an effective tool for the capture of sand fly species in the Mediterranean area.

scholarly journals Seasonal dynamics of Phlebotomus Papatasi (Scopoli, 1786) (Diptera: Psychodidae) population in southern Republic of Moldova

2021 ◽  
Author(s):  
Tatiana Sulesco ◽  
Keyword(s):  
Seasonal Dynamics ◽  
Sand Fly ◽  
Sand Flies ◽  
Phlebotomus Papatasi ◽  
Light Traps ◽  
Phlebotomine Sand Flies ◽  
Republic Of Moldova ◽  
Genus Leishmania

Phlebotomine sand flies are vectors of several infectious pathogens, including parasitic protozoans of the genus Leishmania and phleboviruses. Increasing sand fly biting nuisance reported by residents from southern Republic of Moldova since 2011 initiated this study. Ceadir-Lunga, a semi-urban locality in southern Republic of Moldova was selected for seasonal sand fly collections outdoors and indoors in 2015 and 2017 using CDC light traps and manual aspirators. Continuous trapping showed markedly longer activity of P. papatasi indoors. Specimens were collected from first aspirations in the second half of June until last collections in mid-September, suggesting that the actual indoor activity of P. papatasi may have been longer. Low numbers of trapped specimens do not allow make accurate conclusions regarding the seasonal dynamics.

scholarly journals Molecular Detection of Bartonella sp. in Psathyromyia shannoni and Lutzomyia cruciata From Northeastern Mexico

2021 ◽  
Vol 2 ◽  
Author(s):  
Yokomi N. Lozano-Sardaneta ◽  
Nadia Joselyne Soto-Olguín ◽  
Jorge J. Rodríguez-Rojas ◽  
Sokani Sánchez-Montes ◽  
Eduardo A. Rebollar-Téllez ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Molecular Detection ◽  
Citrate Synthase ◽  
Phylogenetic Reconstruction ◽  
Sand Fly ◽  
Sand Flies ◽  
Light Traps ◽  
Bartonella Bacilliformis ◽  
Phlebotomine Sand Flies ◽  
Northeastern Mexico

Phlebotomine sand flies are vectors of Leishmania spp., Bartonella bacilliformis, and several arboviruses worldwide. In Mexico, the presence of Bartonella species is associated sporadically with arthropods and little is known on the diversity of insects that could be incriminated with its transmission. The aim of this study was to perform a molecular detection of Bartonella DNA in sand fly species collected in northeastern Mexico. Sand flies were collected at the states of Nuevo Leon and Tamaulipas from June to August 2010, using 16 light traps per night. Sand fly species were morphologically identified, and for Bartonella detection, we amplified ~378 bp of the citrate synthase gene (gltA). DNA sequences were compared in a phylogenetic reconstruction based on maximum likelihood. A total of 532 specimens from seven sand fly species were morphologically identified, where 11 specimens from Tamaulipas tested positive for the presence of a new lineage of Bartonella sp. associated with Psathyromyia shannoni and Lutzomyia cruciata. This work represents the second record of Bartonella-associated with sand flies outside of the endemic area of Carrion’s disease. More studies are necessary to understand their life cycle, transmission dynamics, and their relationship with sand fly species.

Field evaluation of four commercial light traps, trap placement, and effect of carbon dioxide on phlebotomine sand fly collection in Thailand

2020 ◽  
Author(s):  
Puckavadee Somwang ◽  
Pathamet Khositharattanakool ◽  
Nattaphol Pathawong ◽  
Arissara Pongsiri ◽  
Silas A. Davidson ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Light Trap ◽  
Latin Square ◽  
Field Evaluation ◽  
Sand Fly ◽  
Sand Flies ◽  
Light Traps ◽  
Northern Thailand ◽  
Sand Fly Vectors ◽  
Trap Placement

Abstract Background Several light trap devices have been invented and developed to assess the abundance of sand flies. Traps available in the market have different designs and attractant combinations to catch sand fly vectors. We evaluated the efficacy of four commercial light traps and determined the effect of trap placement and carbon dioxide (CO2) on sand fly collection in northern Thailand. Methods Trap evaluations were conducted at two natural caves located in Chiang Rai province, Thailand. In the first part of the study, the efficacies of four trap types including the Centers for Disease Control miniature light trap (CDC LT), Encephalitis Vector Survey trap (EVS), CDC Updraft Blacklight trap (CDC UB), and Laika trap (LK) were evaluated and compared using a Latin square experimental design. The second half of the study evaluated the influence of trap placement and CO2 on sand fly collection. Additionally, CDC LT were placed inside, outside, and at the entrance of caves to compare the number of sand flies collected. Results For the trap efficacy experiment, a total of 11,876 phlebotomine sand flies were collected over 32 trap-nights. Results demonstrated that CDC LT, CDC UB, and LK collected significantly more sand flies than EVS (P > 0.05). However, there were no significant differences between the numbers of sand flies collected by CDC LT, CDC UB, and LK. A total of 6,698 sand flies were collected from the trap placement and CO2 experiment over 72 trap-nights. Results showed that CO2 did not influence the numbers of sand flies captured (P < 0.05), whereas trap placement at the entrance of the caves resulted in collection of significantly more sand flies than traps placed inside and outside of the caves. Conclusion We found the CDC LT, CDC UB, and LK without CO2 captured the greatest amount of sand flies. This was particularly observed when traps were placed at the entrance of a cave, perhaps because of the greater passage of stimuli caused by wind flow at the entrance of the cave. The light traps in this study can be used effectively to collect sand fly vectors in northern Thailand.

Diversity and Ecology of Sand Flies (Diptera: Psychodidae), Potential Vectors of Leishmania in the Quang Ninh Province, Vietnam

2019 ◽  
Vol 57 (1) ◽  
pp. 259-265
Author(s):  
Nam Sinh Vu ◽  
Son Hai Tran ◽  
Phong Vu Tran ◽  
Tu Cong Tran ◽  
Duong Nhu Tran ◽  
...  
Keyword(s):  
Male Genitalia ◽  
Morphological Characteristics ◽  
Sand Fly ◽  
Sand Flies ◽  
Light Traps ◽  
Phlebotomine Sand Flies ◽  
Main Species ◽  
Distribution And Ecology ◽  
Specimen Identification ◽  
Quang Ninh

Abstract The study aims to make an update on the distribution and ecology of sand flies in the Quang Ninh province, Northern Vietnam, where Leishmania cases were reported in 2001. Seventeen sites were chosen in three districts of the province: Ha Long, Cam Pha, and Hoanh Bo. Phlebotomine sand flies were collected using 68 CDC light traps from May 30 to 3 June 2016. Captured specimens were transferred individually into Eppendorf tubes with 90% ethanol. The sand fly heads and genitalia were removed and were mounted in Euparal after successive different baths. Specimen identification was determined based on the morphology of the cibarium, pharynx, and/or male genitalia or female spermathecae. A total of 416 sand flies (125 females, 283 males) belonging to four genera were collected and 10 sand fly species were identified: Sergentomyia silvatica, Se. barraudi, Se. hivernus, Se. bailyi, Phlebotomus mascomai, Ph. stantoni, Ph. yunshengensis, Ph. betisi, Chinius junlianensis, Idiophlebotomus longiforceps. The Sergentomyia genus prevailed (79.7% of the collected sand flies), followed by the Phlebotomus genus (13.7%), the Chinius genus (6.1%), and the Idiophlebotomus genus (0.8%). Besides these well-defined taxa, five specimens, named sp1, showed unknown morphological characteristics, requiring further study. The majority of sand flies were collected in rock caves suggesting the cavernicolous character of the species in the Quang Ninh province. However, specimens were also collected in intra and peridomiciliary sites in which Ph. stantoni and Se. hivernus were found as the main species. It is worth noting that two Ph. stantoni were found in the house of a patient affected by Leishmania.

scholarly journals Phlebotomine Sand Fly Fauna andLeishmaniaInfection in the Vicinity of the Serra do Cipó National Park, a Natural Brazilian Heritage Site

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Rosana Silva Lana ◽  
Érika Monteiro Michalsky ◽  
Consuelo Latorre Fortes-Dias ◽  
João Carlos França-Silva ◽  
Fabiana de Oliveira Lara-Silva ◽  
...  
Keyword(s):  
National Park ◽  
Sand Fly ◽  
Sand Flies ◽  
Local Data ◽  
Phlebotomine Sand Flies ◽  
Serra Do Cipó ◽  
Heritage Site ◽  
One Year ◽  
The One ◽  
Favorable Conditions

In the New World, the leishmaniases are primarily transmitted to humans through the bites ofLeishmania-infectedLutzomyia(Diptera: Psychodidae) phlebotomine sand flies. Any or both of two basic clinical forms of these diseases are endemic to several cities in Brazil—the American cutaneous leishmaniasis (ACL) and the American visceral leishmaniasis (AVL). The present study was conducted in the urban area of a small-sized Brazilian municipality (Jaboticatubas), in which three cases of AVL and nine of ACL have been reported in the last five years. Jaboticatubas is an important tourism hub, as it includes a major part of the Serra do Cipó National Park. Currently, no local data is available on the entomological fauna or circulatingLeishmania. During the one-year period of this study, we captured 3,104 phlebotomine sand flies belonging to sixteenLutzomyiaspecies. In addition to identifying incriminated or suspected vectors of ACL with DNA of the etiological agent of AVL and vice versa, we also detectedLeishmaniaDNA in unexpectedLutzomyiaspecies. The expressive presence of vectors and naturalLeishmaniainfection indicates favorable conditions for the spreading of leishmaniases in the vicinity of the Serra do Cipó National Park.

scholarly journals Response of phlebotomine sand flies to light-emitting diode-modified light traps in southern Egypt

2007 ◽  
Vol 32 (2) ◽  
pp. 302 ◽  
Author(s):  
D.F. Hoel ◽  
J.F. Butler ◽  
E. Y. Fawaz ◽  
N. Watany ◽  
S.S. El-Hossary ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Sand Flies ◽  
Light Traps ◽  
Phlebotomine Sand Flies ◽  
Light Emitting

scholarly journals Observations on the dipteran fauna in a focus of dermal leishmaniasis in the State of Minas Gerais: II. The distribution of families in relation to their medical, veterinary and economic importance

1983 ◽  
Vol 78 (2) ◽  
pp. 121-134
Author(s):  
Paul Williams ◽  
Carlos B. Marcondes ◽  
Alberto R. Falcão
Keyword(s):  
Light Trap ◽  
Well Being ◽  
Minas Gerais ◽  
The State ◽  
Sand Flies ◽  
Cultivated Land ◽  
Light Traps ◽  
Ecological Changes ◽  
Family Level ◽  
The Impact

Miniature light traps used to collect Phlebotominae in a focus of dermal leishmaniasis in the eastern part of the State of Minas Gerais, Brazil. Over a period of seven months, the other Diptera captured in 179 light trap samples were identified to family level. The traps were placed in eight localities which constituted three different biotopes: three woodland aresas, cultivated land, and a peridomestic site. A comparison is made between the totals of Dipeterans collected in each biotope, the total numbers of families collected in each biotope and the estimated indices of diversity. Dendograms representing the degrees of association between families of Diptera in different biotopes are presented. Some families of Diptera are uniformly distributed throughout the study area; a few families seem to have become adapted to areas where human activity has induced the greatest ecological changes. The impact between Dipterans and human well-being is discussed. The availabel evidence indicates that transmission of dermal leishmaniasis does not occur in areas where sand flies can be captured in greatest densities.

Entomological Studies in Itaúna, Brazil, an Area With Visceral Leishmaniasis Transmission: Fauna Survey, Natural Leishmania Infection, and Molecular Characterization of the Species Circulating in Phlebotomine Sand Flies (Diptera: Psychodidae)

2019 ◽  
Vol 56 (5) ◽  
pp. 1368-1376 ◽  
Author(s):  
Josiane V Lopes ◽  
Erika M Michalsky ◽  
Nathalia C L Pereira ◽  
Adão J V de Paula ◽  
Fabiana O Lara-Silva ◽  
...  
Keyword(s):  
Visceral Leishmaniasis ◽  
Natural Infection ◽  
Local Population ◽  
Influential Factor ◽  
Sand Fly ◽  
Health Concern ◽  
Leishmania Infection ◽  
Lutzomyia Longipalpis ◽  
Sand Flies ◽  
Phlebotomine Sand Flies

Abstract Among neglected tropical diseases, visceral leishmaniasis (VL) shows great relevance in global terms and is a serious public health concern due to the possibility of severe and lethal forms in humans. In this study, we evaluate entomological factors such as diversity and abundance of phlebotomine sand flies (Diptera:Psychodidae) and the Leishmania species circulating in these species in possible association with VL transmission in the Brazilian town Itaúna. The entomological collections were performed during three consecutive nights, always in the third week of each month, within a period of 12 mo. A total of 1,786 sand fly specimens were collected, from which 20% were collected inside houses. The influence of three local climatic variables (temperature, rainfall, relative humidity) on the population sizes of these insects was evaluated. Temperature was the most influential factor, with a significant positive correlation with the local population size of phlebotomine sand flies collected per month. Lutzomyia longipalpis (Lutz & Neiva, 1912) was the predominant species in the study area. Leishmania DNA was detected in nine out of 133 pools of sand fly females, using nested/PCR, which resulted in a minimal natural infection rate of 2.91%. DNA from Leishmania infantum Nicolle, 1908 (Kinetoplastida: Trypanosomatida), was detected in Evandromyia cortelezzii (Bréthes, 1923), Ev. evandroi (Costa, Lima & Antunes, 1936), Ev. lenti (Mangabeira, 1938), and Ev. termitophila (Martins, Falcão & Silva, 1964), besides Lu. longipalpis. Our study indicates favorable conditions for VL spreading in Itaúna due to the presence of Lu. longipalpis and Le. infantum-infected phlebotomine sand flies.

Relationship Between the Distribution and Biodiversity of Sand Flies (Diptera: Psychodidae) With the Incidence of Zoonotic Cutaneous Leishmaniasis in Endemic Foci of Golestan Province, Iran

2020 ◽  
Vol 57 (6) ◽  
pp. 1768-1774
Author(s):  
Aioub Sofizadeh ◽  
Kamran Akbarzadeh ◽  
Ehsan Allah Kalteh ◽  
Fatemeh Karimi
Keyword(s):  
Cutaneous Leishmaniasis ◽  
Diversity Index ◽  
Wiener Index ◽  
Sand Flies ◽  
Phlebotomus Papatasi ◽  
Light Traps ◽  
Phlebotomine Sand Flies ◽  
Zoonotic Cutaneous Leishmaniasis ◽  
Golestan Province ◽  
The Relationship

Abstract Zoonotic cutaneous leishmaniasis (ZCL) is prevalent in Golestan Province, Iran. The current study determined the relationship between the distribution and biodiversity of sand flies with cutaneous leishmaniasis at 14 villages in plain and hillsides areas. In each village from July to September 2017, 60 sticky traps and 2 CDC light traps were laid. Spearman and Mann–Whitney tests were used to determine the relationship between the incidence of ZCL and the abundance of different species of sand flies. Simpson, Shannon-Wiener, Evenness, and Margalef indices were calculated to estimate the diversity of species. A total of 5,295 phlebotomine sand flies were collected, comprising 10 species of the genus Phlebotomus (3,947 flies) and 7 species of genus Sergentomyia (1,248 flies). The abundance of sand flies and incidence of ZCL in plain areas were greater than that of hillsides areas (P = 0.013, P = 0.002). There was a significant correlation between the incidence of ZCL and the abundance of Phlebotomus papatasi (r = 0.72, P = 0.004) and P. caucasicus groups (P = 0.006; 0.022). In the Shannon-Wiener index, the rest of the biodiversity indices were reduced in higher-altitude areas. Increasing Shannon-Wiener index showed higher diversity of sand flies in higher-altitude areas. Data of the reported cases of leishmaniasis in plain areas can reveal the relationship between less diversity index (Shannon-Wiener), higher dominant diversity index (Simpson), and incidence of leishmaniasis in these areas.

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