archedictyon

archedictyon The name given to a hypothetical scheme of wing venation proposed for the very first winged insect. It is based on a combination of speculation and fossil data. Since all winged insects are believed to have evolved from a common ancestor, the archediction represents the 'template' that has been modified (and streamlined) by natural sel...
Found on http://www.wordinfo.info/words/index/info/view_unit/645/

Archedictyon

Archedictyon (from Greek Arche meaning first, original, ancient, primitive, or most basic and dictyo- meaning net or netlike, plural `archedictya`) is a name given to a hypothetical scheme of wing venation proposed for the common ancestor of all winged insects. The nature of the archedictyon is an important consideration in the taxonomic classif.....
Found on http://en.wikipedia.org/wiki/Archedictyon
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