Corpus ID: 55429864

THE INSECT WING, PART IV. VENATIONAL TRENDS AND THE PHYLOGENY OF THE WINGED ORDERS1

@inproceedings{Hamilton1972THEIW,
  title={THE INSECT WING, PART IV. VENATIONAL TRENDS AND THE PHYLOGENY OF THE WINGED ORDERS1},
  author={K. A. Hamilton},
  year={1972}
}

K. A. Hamilton

Published 1972

Biology

Evolutionary trends of dissimilarity between wing pairs in shape and vena tion, of fusion of vein systems, of number of anal veins, and of crossvein types are traced. It is concluded that the following are primitive characters: similar wings, the hind wing with a larger anal lobe; all vein systems separate to the base; 7 anal veins, unbranched; cross veins forming an archedictyon. Three other types of primary crossveins, representing successive grades of evolutionary advancement, are discussed… CONTINUE READING

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