A device for collecting and transferring samples of biological material, wherein the device comprises at least: a support body exhibiting a length, in a longitudinal extension thereof, comprised between 50mm and 200mm and having at least a first end portion, a connecting intermediate portion exhibiting a diameter in perpendicular section to the longitudinal extension thereof comprised between 0.5 and 3mm, and at least a gripping portion exhibiting a diameter in perpendicular section to the longitudinal extension that is comprised between 0.8mm and 5mm, the support body being bendable without breaking at least up to reaching a radius of curvature of 3 mm; and a plurality of fibres attached to and arranged on said first end portion of said support body by flocking and arranged on the collecting portion such as to define a plurality of capillary interstices apt to adsorb the sample by capillarity, for defining a flocked collecting portion exhibiting a length comprised between 3 mm and 40 mm and a diameter in perpendicular section to the longitudinal extension thereof, including the length of the fibres, comprised between 2 and 7 mm, the flocked collecting portion being apt to collect, on said collecting portion, a quantity of a sample of biological material, said support body being made of polyamide (PA or nylon), in particular polyamide 66 (PA66 or nylon 66), wherein said fibres exhibit a count comprised between 1 and 7 dtex and a length comprised between 0.2 mm and 3mm and wherein the flocked collecting portion is configured for collecting by capillarity a quantity comprised between 50 and 200 microlitres of the sample and wherein said collecting portion exhibits a surface density of said fibres on said collecting portion comprised between 50 and 500 fibres per mm 2. a support body exhibiting a length, in a longitudinal extension thereof, comprised between 50mm and 200mm and having at least a first end portion, a connecting intermediate portion exhibiting a diameter in perpendicular section to the longitudinal extension thereof comprised between 0.5 and 3mm, and at least a gripping portion exhibiting a diameter in perpendicular section to the longitudinal extension that is comprised between 0.8mm and 5mm, the support body being bendable without breaking at least up to reaching a radius of curvature of 3 mm; and a plurality of fibres attached to and arranged on said first end portion of said support body by flocking and arranged on the collecting portion such as to define a plurality of capillary interstices apt to adsorb the sample by capillarity, for defining a flocked collecting portion exhibiting a length comprised between 3 mm and 40 mm and a diameter in perpendicular section to the longitudinal extension thereof, including the length of the fibres, comprised between 2 and 7 mm, the flocked collecting portion being apt to collect, on said collecting portion, a quantity of a sample of biological material, said support body being made of polyamide (PA or nylon), in particular polyamide 66 (PA66 or nylon 66), wherein said fibres exhibit a count comprised between 1 and 7 dtex and a length comprised between 0.2 mm and 3mm and wherein the flocked collecting portion is configured for collecting by capillarity a quantity comprised between 50 and 200 microlitres of the sample and wherein said collecting portion exhibits a surface density of said fibres on said collecting portion comprised between 50 and 500 fibres per mm 2.