PURPOSE: To catch fleas to be attached to a pet by providing a comb-shaped body on the opening part front surface of a box-shaped body, for which an adhesive material is provided in an internal part.

CONSTITUTION: On the opening part front surface of a box-shaped body 1, for which an adhesive material (a) is provided freely attachably and detachably or fixedly in the internal part, a comb-shaped body 2 is provided freely attachably and detachably or fixedly. The comb-shaped body 2 is provided in the opening part on the front surface of the box-shaped body 1 and a suitable interval is arranged between the opening part and the comb-shaped body 2. When the box-shaped body 1 is grasped and the comb-shaped body 2 is attached to the body of the pet like pulling back the box-shaped body 1, the fleas to be attached to the pet can be effectively caught. An insecticidal component can be added to the adhesive material (a) as well.