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Poptawun Palanupab No.19 4/1Siwanut Udomsri No.22 4/1

Ohm sripongphankul No.24 4/1

Miniproject :Find color appeal to fly most

member

Out lineIntroductionObjectiveMaterials and MethodResult and discussionConclustion

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.

Color visionSome 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)

IntroductionNowadays, 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?

objectiveStudy about what the most color

appeal to fly.

MeterialsPaperSyrupAquarium

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

MethodFirst you catch the flies.In plastic bag and impound with rubber.

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.

Wait 30 secound.

Arrange paper color.(24 times)

Then do it again.

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

Then we count a number of fly on paperAnd we do t-test ,f-test.

The color of paper that fly swarm.

Paper color

pink blue yellow

green

The number of flies swarming(in all test)

20 7 8 18

Average swarm

0.833

0.292 0.333 0.75

Result

Percentage of the number of flies are hang of colored pa-per and do not hang

hang ping

hang blue

hang yel-low

hang green

do not hang

Amount of fly hang on paperhang pinp

hang blue

hang yel-low

hang green

Percentage of fly that hang on paper(color)

The position of the paper that fly hang.

Average swarm

1(left) 2 3 4(right)The number of flies swarming(in all test)

13 12 15 13

Average swarm 0.542 0.5 0.625

0.542

Percentage of the number of flies are

hang of colored paper and do not

hanghang posi-tion 1hang posi-tion 2hang posi-tion 3hang posi-tion 4do not hang

Amount of flies hang on paper

hang posi-tion 1hang posi-tion 2hang posi-tion 3hang posi-tion 4

Percentage of fly that hang on paper(position)

conclusion Then we use T-test ,F-test to compare

different between color and position .From T-test ,F-test (color)show thatthe ability in appeal housefly.Pink=Green>Blue=YellowFrom T-test ,f-test(position) show thatPosition1=Position2=Position3=Positi

on4Position doesn’t affect to interesting

of fly.And color affect to interesting of fly .

discussionFrom our result find that kind of color can

appealFly, 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?

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,5,377-386

Roger.H.(1988,September 26). The compound eye of the tsetse fly, Journal of Insect Physiology,5,423-431

Werner.B(1990,November 6). Color vision in honeybees,  Neuroscience & Biobehavioral Reviews,1, 1-12

Thank you Teacher in Sinos class. Biology department of Mahidol

Wittayanusorn.

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Thank you for you attention