Abai, MR

6th International Congress of DipterologyEffectiveness of combination with malaise and box traps forsurvey of tabanid fliesTabanidaeWatanabe,MLaboratory of Medical Entomology, Toyama Institute of Health, Imizu-shi, Toyama, 939-0363 JapanUse of a trap has been widely performed for investigation of thetabanid flies.I have also used canopy or box traps with carbon dioxide (CO 2 ) for thesurvey of Hirosia iyoensis. Although these traps were suitable forcapturing the small size tabanid flies which attack the ventral of thedomestic animals, it was unsuitable for capturing the large size tabanidflies which attack the back of them. On the other hand, the malaise trapwithout carbon dioxide has the advantage, which can capture varioustabanid fly species including large size horseflies. However, malaise trapwas unsuitable for capturing the large number of tabanid flies. Then, it wasconsidered that both traps were combined using the advantage of box andmalaise traps. Combination traps were created to investigate the tabanid flyfauna and its population dynamics of a certain study point.The effectiveness of this combination trap was tested in summer of2005. The commercial malaise trap (Townes style) and the self-makingbox trap (80~90cm length/width, 40cm height, 70cm leg) were combined.The traps were set from the middle of July to the end of September. Therecovery of captured tabanid flies was carried out every week around 15:00on Wednesday. Dry-ice 2kg was put on the boundary line ground of bothtraps.As a result, it was observed that the combination traps compared withthe box trap only captured more species and individual numbers. Theseexperiments will be continued in 2006, and the report will also announced.Key Words: tabanid flies, combination trap, malaise trap, box trap, speciescomposition295