A device for attracting and inducing blood-feeding biting flies to land on it and to kill them, comprising a tubular body defining a central axis and a height H defined in the length of said central axis, said tubular body comprising a wall parallel to said central axis and defining lateral cross sections perpendicular to said central axis , the device being characterized in that it further comprises: - said tubular body has a first opening defining a first rim and a second opening defining a second rim ; - said first rim and second rim are connected by at least a portion of said wall ; - said wall has an outer surface and an inner surface ; - said outer surface reflects or scatters less than 5% of illuminating light incident on said outer surface for wavelengths between 600 nm and 700 nm and peak reflectance less than 40% on said outer surface for wavelengths between 450 nm and 500 nm; - the color of said outer surface or said inner surface is blue or is colourless, said blue colour being defined in the 1960 CIE colour diagram by a x value defined between 0.145 and 0.225 and a y value defined between 0.185 and 0.305, colourless being defined in the 1960 CIE colour diagram by a x value defined between 0.210 and 0.420 and a y value defined between 0.220 and 0.430; - said outer surface comprising at least a portion incorporating a substance for retaining and killing insects on or near to said outer surface 6a; - said inner surface has a lower reflectivity than the reflectivity of said outer surface , this reflectivity being defined as the fraction of reflected light of the illuminating light incident on said inner surface , for wavelengths between 360 nm and 700 nm, said reflectivity being defined for reflected and/or scattered light by said inner surface ; - the value of said reflectivity of said inner surface is lower than 20%, preferably lower than 10%, even more preferably lower than 5%, - the lateral dimension of the tubular body , defined in any plane perpendicular to said central axis , is greater than said height H. - said tubular body has a first opening defining a first rim and a second opening defining a second rim ; - said first rim and second rim are connected by at least a portion of said wall ; - said wall has an outer surface and an inner surface ; - said outer surface reflects or scatters less than 5% of illuminating light incident on said outer surface for wavelengths between 600 nm and 700 nm and peak reflectance less than 40% on said outer surface for wavelengths between 450 nm and 500 nm; - the color of said outer surface or said inner surface is blue or is colourless, said blue colour being defined in the 1960 CIE colour diagram by a x value defined between 0.145 and 0.225 and a y value defined between 0.185 and 0.305, colourless being defined in the 1960 CIE colour diagram by a x value defined between 0.210 and 0.420 and a y value defined between 0.220 and 0.430; - said outer surface comprising at least a portion incorporating a substance for retaining and killing insects on or near to said outer surface 6a; - said inner surface has a lower reflectivity than the reflectivity of said outer surface , this reflectivity being defined as the fraction of reflected light of the illuminating light incident on said inner surface , for wavelengths between 360 nm and 700 nm, said reflectivity being defined for reflected and/or scattered light by said inner surface ; - the value of said reflectivity of said inner surface is lower than 20%, preferably lower than 10%, even more preferably lower than 5%, - the lateral dimension of the tubular body , defined in any plane perpendicular to said central axis , is greater than said height H. <EOS>