City University of Hong Kong

CityU Web Hacker : Butterfly

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[Introduction]

[CityU Web Hacker]

[Butterfly]

[Agreement]

[2006 Extreme Web Designer Award]

[CS 3382 Course Instructor - Dr. Andy Chun]

[CityU Web Hacker - Tony Yip's Homepage]

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Introduction: CityU Web Hacker

"CityU Web Hacker" is the short form of "City University of Hong Kong Web Hacker". It is the search keyword of 2006 Extreme Web designer Award which is a contest to encourage students to use a balance of well-proven Web engineering principles coupled with good Web design guidelines to produce high quality Websites that follows usability and accessibility best practices. This contest is now the second year and it is holding by Dr. Andy Chun , Associate Professor at the City University of Hong Kong in the Department of Computer Science.

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Who is: The "CityU Web Hacker"

One of the web hackers of City University of Hong Kong this year is Tony Yip (Yip Kam Fai Tony with student ID 50549260) , a third year student from Facult of Science and Engineering. He is now trying to use this page to make him being the top web hacker in CityU.

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Butterfly @ "CityU Web Hacker"

A butterfly is an insect of the Order Lepidoptera, and belongs to one of the superfamilies Hesperioidae§Ë½º (the skippers) or Papilionoidae»ñ½º (all other butterflies). Some authors would include also members of the superfamily Hedyloidea, the American butterfly moths. They are notable for their unusual life cycle¡Xproceeding from the larval stage as caterpillars through a metamorphosis into their winged adult form. The patterns formed by their brightly coloured wings and their erratic-yet-graceful flight has made butterfly watching a popular hobby.

Presently butterflies are classified in two superfamilies, Hesperioidea, consisting of the 'skippers' and Papilionoidea or 'true butterflies'. These are sister taxa, so the butterflies collectively are thought to constitute a true clade. Some modern taxonomists place them all in superfamily Papilionoidea, distinguishing the skippers from the other butterflies at the series level only. In this system, Papilionoidea consists of the series Hesperiiformes (with one family only, the skipper family Hesperiidae) and the series Papilioniformes (with five families).

The five families of true butterflies usually recognized in the Papilionoidea are:

Some older classifications recognize additional families, for example Danaidae´³½º, Heliconiidae, Libytheidae and Satyridae²´½º, but modern classifications treat these as subfamilies within the Nymphalidae.

Abstract from WikiPedia articles: Butterfly in Wikipedia


In Hong Kong, 240 types of butterflies could be found. Here is the summary:

Hesperioidea§Ë½º

Hesperiidae

Hesperiidae

The butterflies in this family are from small to medium size. Their bodies are large and with relatively small wings. They are usually yellow or white in a black background colour. They fly in a very rapid and jerky style, this is why they call skippers. They are not as colourful as the other four families. Ref: Brisbane Insects and Spiders Home Page.

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Papilionidae»ñ½º

Papilionidae

Papilionidae

Most of the butterflies in this family are large in size and with brilliant colours. They are called Swallowtails because some of species have tailed hind-wings. However, not all family members have tails. Ref: Brisbane Insects and Spiders Home Page.

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Nymphalidaeßæ½º

Nymphalidae

This is the largest butterfly family, with sizes that vary from large to small. They show a great diversity of colour and pattern, although most of them with some brown colour. One distinct characteristic of this family of butterflies is that only four legs can be seen. Their forelegs are reduced. Ref: Brisbane Insects and Spiders Home Page.

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Pieridae¯»½º

Pieridae

Most of the butterflies in this family are in medium size. They usually have white or yellow wings with black edges, and some have red and yellow patterns beneath their wings. They don't have tails on their hind-wings. Their flight is rapid and they usually fly erratically amongst the plants. Ref: Brisbane Insects and Spiders Home Page.

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Riodinidae¸Ã½º

Riodinidae

The Riodinidae (or Metalmarks) are a family of butterflies. The common name Metalmark refers to the small metallic-looking spots commonly found on their wings. There are approximately 1,000 species of Metalmark butterflies in the world. The family is represented both in the New World and the Old World. Ref: Riodinidae - Wikipedia, the free encyclopedia.

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Lycaenidae¦Ç½º

Lycaenidae

The butterflies in this family are from small to very small. Most of them have metallic colours, either blue or orange-brown in colour. They fly rapidly and erratically close to the ground. Ref: Brisbane Insects and Spiders Home Page.

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Danaidae´³½º

Danaidae

Danaidae

The major characteristics for the family Danaidae include: Large orange-colored butterflies with black veins and white-spotted black outer margins. Front legs reduced, as in the Nymphalidae and Satyridae. Ref: Family identification - Danaidae .Page prepared by John L. Foltz, University of Florida, Dept of Entomology and Nematology, 29 October 1998.

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Satyridae²´½º

Satyridae

Satyridae

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The major characteristics for the family Satyridae include: Front legs reduced. Usually grayish or brownish, often with eyespots on wings. Subcostal vein swollen near base of front wing; no other family has this characteristic! Ref: Family identification - Satyridae .Page prepared by John L. Foltz, University of Florida, Dept of Entomology and Nematology, 29 October 1998.

Source from Hong Kong Butterfly Net


Below are the "CityU Web Hacker" 's favourite butterfly:

Blue Morpho butterfly

Blue_morpho_butterfly_large

Photograph of a Blue Morpho butterfly (Morpho menelaus) by Gregory Phillips.


Agreement

This website was created as an entry to CityU's "eXtreme Web Designer Award" contest. The authors of this website agree to abide by all the rules and regulations of this contest as specified in: http://www.cs.cityu.edu.hk/~hwchun/extreme/.

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