1. LOGO Poptawun Palanupab No.19 4/1 Siwanut Udomsri No.22 4/1 Ohm sripongphankul No.24 4/1 Miniproject : Find color appeal to fly most member

2. Out line  Introduction  Objective  Materials and Method  Result and discussion  Conclustion

3. Fly Flies are insects of the order Diptera(containing an estimated 240,000 species of mosquitoes, gnats, midges). They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax. Compound eye A compound eye may consist of thousands of individual photoreceptor units or ommatidia. Compared with simple eyes, compound eyes possess a very large view angle, and can detect fast movement.

4. Color vision  Some insects are able to appeal with colors. This requires two or more pigments, each of which absorbs best at a different wavelength. (Werner Backhaus,1990)  the remaining two respond best to ultraviolet light (344 nm)

5. I ntroduction  Nowadays, in Thailand we can find fly in dirty places such as either restaurant or your house. What fly’s eye look like?  Fly’s eye is compound eye.[Roger Hardie,1988]  In market, If we observe sticky tape, we see it’s color is green. We have known that spectral length appeal to friefly and also dragonfly. Both of them have as same compound eye as fly[S.L. Swihart,1969]. We are interested what colors appeal to fly?  This project aims to investigate what colors appeal to fly?

6. objective  Study about what the most color appeal to fly.

7. Meterials  Paper  Syrup  Aquarium

8.  First we catch fly but we don’t made future board in aquarium then we found that fly can escape this.

9. Method First you catch the flies.In plastic bag and impound with rubber.

11.  Build a box for impound fly.We divide this box in two section. First for impound fly during we place syrup.Secound we divide for place syrup.

12. Wait 30 secound. Arrange paper color.(24 times) Then do it again.

13. Then put the flies in to the aquarium(flies living part) by put a lid up

14. Then we count a number of fly on paper And we do t-test, f-test.

15. The color of paper that fly swarm. Paper color pinkblueyellowgreen The number of flies swarming (in all test) 207818 Average swarm0.8330.2920.3330.75 Result

16. Percentage of fly that hang on paper(color)

17. The position of the paper that fly hang. Average swarm 1(left)234(right) The number of flies swarming (in all test) 13121513 Average swarm0.5420.50.6250.542

18. Percentage of fly that hang on paper(position)

19. conclusion  Then we use T-test,F-test to compare different between color and position.  From T-test,F-test (color)show that the ability in appeal housefly. Pink=Green>Blue=Yellow  From T-test,f-test(position) show that Position1=Position2=Position3=Position4 Position doesn’t affect to interesting of fly. And color affect to interesting of fly.

20. discussion From our result find that kind of color can appeal Fly, but it still have many thing to study. 1.Light that reflect to compound eye.If I put color paper on sheet glass.Do you think paper can appeal fly? 2.Brightness of light If I do it in dark area,can it appeal fly.And what period intensity of light that color can appeal fly. 3.Smell or kind of color that can appeal fly more. If I put green color with syrup,and put white color with shrimp.Green or white that can appeal fly most?

21. reference  Andrew P. K.(2004,April 16). Photoreceptor Cells in Flies and Mammals: Crumby Homology?,development cell,2,253- 254.  Gary J. B.(2010).insect hydrocarbons: biology, biochemistry, and chemical ecology,44-48.  Jack W. Dillwith.(1982,August 16). Correlation of housefly sex pheromone production with ovarian development, Journal of Insect Physiology,5,377-386Journal of Insect Physiology  Roger.H.(1988,September 26). The compound eye of the tsetse fly, Journal of Insect Physiology,5,423-431 Journal of Insect Physiology  Werner.B(1990,November 6). Color vision in honeybees, Neuroscience & Biobehavioral Reviews,1, 1-12Neuroscience & Biobehavioral Reviews

22. Thank you  Teacher in Sinos class.  Biology department of Mahidol Wittayanusorn.

23. LOGO Thank you for you attention