A fly trap includes a cylindrical side wall made of a mesh material; a bottom wall located proximate (i.e., nullat or nearnull) the bottom end of the side wail; a top wall located proximate the top end of the side wall; a conical entry conduit extending from proximate the bottom wall and providing an entry path to the interior chamber of the fly trap; and a lure holding device for holding a fly lure composition beneath the bottom opening of the entry conduit. The entry conduit may include an extending flange member that forms at least a portion of the bottom wall of the trap. Preferably, the top wall and/or some other part of the fly trap includes a light reflecting device, such as a prism or reflector, to help attract attention to the trap in the daylight. Also, to help attract attention to the trap at night, one or more surfaces may be coated with or constructed from a material that glows in the dark (e.g. a powder containing a commercially available phosphorescent material). The lure holding device may contain a suitable fly lure composition, such as one containing about 0.5-3% dried animal blood, wherein the dried animal blood is dried in such a manner that proteins contained therein are not denatured and amino acids contained therein remain intact, and about 0.1-5% sweet brewer's yeast (all percentages are weight percentages based on the entire weight of the composition).