PROBLEM TO BE SOLVED: To provide a trap that is inexpensive, simply-structured, and in addition hygienic and that is capable of physically and efficiently trapping small flies.SOLUTION: The trap is provided with at least one or more holes 8 of 1-5 mm inner diameter in a closed container lid part 4. In the rear side face of the closed container lid part 4, an adhesive for fixing a sticky insect catching sheet and an adhesive for catching insects on the rear side face of the closed container lid part 4 are stuck so that the cross section coated with the adhesives is on the inside. Holes (1-5 mm), through which small flies of trapping target can go in and out with wings folded, are also made on the sticky insect catching sheet provided on the rear side face of the closed container lid part 4, in the same position as the holes 8 prepared on the closed container lid part 4. By placing in the closed container an object 6 for attracting the small flies of trapping target, the small flies entered with the wings folded into the closed container are trapped.COPYRIGHT: (C)2015,JPO&INPIT【課題】安価で、構造が簡単、しかも衛生的な、コバエ等の小型ハエ類を物理的に効率良く捕獲できる捕獲器を提供する。【解決手段】密閉容器蓋部4に最低一個以上の内径1ミリ~5ミリの穴8を有し、密閉容器蓋4裏側面に粘着式虫取りシートの固定用粘着剤と、密閉容器蓋4裏側面虫取り用粘着剤が塗布された断面が内側に成る様に貼り付け、密閉容器蓋部4に有した穴8より、捕獲対象とするコバエ類が羽を折りたたんで出入り出来る程度の穴(1ミリ~5ミリ)を、密閉容器蓋4裏面に取り付けた虫取り用粘着シートにも、密閉容器蓋部4に設けられた穴8と同じ位置に設け、捕獲対象コバエ類誘引物6を密閉容器内に入れておく事で、羽を折りたたんで密閉容器内に進入したコバエ類を、捕獲する。【選択図】図5