An adhesive-type insect trap comprising: a main body having an adhesive sheet insertion hole ; a light source mount disposed on the main body ; and a cover detachably attached to the main body and having a through-hole formed in at least a portion thereof, characterized in that the main body further comprises a light source seat disposed to face the light source mount such that one side of a light source is mounted on the light source mount and the other side of the light source is mounted on the light source seat ; wherein the light source seat comprises: a pressing member pressing the light source in a thickness direction of the light source ; a securing member pressing the light source in a height direction of the light source ; and a support plate supporting the pressing member and the securing member ; wherein the light source comprises an end cap adjoining the light source seat , and the end cap comprises at least one planar surface and at least one curved surface , wherein the securing member comprises a tongue portion adjoining the light source and a flat portion extending from the tongue portion and adjoining the support plate , and wherein the securing member adjoins the planar surface of the end cap and the pressing member adjoins the curved surface of the end cap . a main body having an adhesive sheet insertion hole ; a light source mount disposed on the main body ; and a cover detachably attached to the main body and having a through-hole formed in at least a portion thereof, characterized in that the main body further comprises a light source seat disposed to face the light source mount such that one side of a light source is mounted on the light source mount and the other side of the light source is mounted on the light source seat ; wherein the light source seat comprises: a pressing member pressing the light source in a thickness direction of the light source ; a securing member pressing the light source in a height direction of the light source ; and a support plate supporting the pressing member and the securing member ; wherein the light source comprises an end cap adjoining the light source seat , and the end cap comprises at least one planar surface and at least one curved surface , wherein the securing member comprises a tongue portion adjoining the light source and a flat portion extending from the tongue portion and adjoining the support plate , and wherein the securing member adjoins the planar surface of the end cap and the pressing member adjoins the curved surface of the end cap . a pressing member pressing the light source in a thickness direction of the light source ; a securing member pressing the light source in a height direction of the light source ; and a support plate supporting the pressing member and the securing member ; wherein the light source comprises an end cap adjoining the light source seat , and the end cap comprises at least one planar surface and at least one curved surface , wherein the securing member comprises a tongue portion adjoining the light source and a flat portion extending from the tongue portion and adjoining the support plate , and wherein the securing member adjoins the planar surface of the end cap and the pressing member adjoins the curved surface of the end cap . <EOS>