File:The biology of dragonflies (Odonata or Paraneuroptera) (1917) (20373938992).jpg

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Title: The biology of dragonflies (Odonata or Paraneuroptera)
Identifier: biologyofdragonf00till (find matches)
Year: 1917 (1910s)
Authors: Tillyard, Robin John, 1881-1937
Subjects: Dragon-flies
Publisher: Cambridge (Eng. ) : University Press
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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294 ZOO-GEOGRAPHICAL DISTRIBUTION (CH. together witli the total absence of Gomfhinae (except Ictinus australis). Tasmania. This island is poor in Odonata, though rich in large rivers. Most of the Dragonfiies are still-water forms. This suggests that the fauna chiefly crossed from Australia at a time when the land-connection (Bassian Isthmus) was too small to carry many running rivers, and only possessed isolated ponds or shallow lagoons (174). New Zealand. This isolated province is very poor in all forms of insect life. There are only eight known species of Dragon- flies, comprised in the seven genera Uropetala, Aeschna, Somato- chlora, Procordulia, Diplacodes, Austrolestes and Xanthocneniis. Of these, the first and last are peculiar to the island. For an interesting comparison of the faunas of the three main southern land-masses of Australia, S. Africa, and S. America, the reader is referred to the introduction in Ris (130).
Text Appearing After Image:
Fig. 154. Fore-wing (20 mm.), and portion of hind-wing of Lesloidea cotijuvcta Tillyard, q, Queensland. Original. Polynesia. Polynesia comprises all the islands (of non-continental origin) lying in the Pacific Ocean eastwards from the boundary of the Austrahan region. The principal groups are the Marshalls, Gilberts, Tonga, Samoa, the Marquesas, Tahiti, and the Hawaiian Islands. The interesting fauna of the Hawaiian Islands has been fully dealt with by Perkins (ii4-ii6j. There are two peculiar genera, Nesogonia (Lihellulinae) and Megalagrion, besides a large number of species referred to the genus Agrion, whose larvae live in w^ater collected at the bases of the leaves of plants, and possess reduced caudal gills. The non-continental character of the fauna of the Polynesian Islands is shewn by the absence of all subfamilies except Aeschninae,

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  • bookid:biologyofdragonf00till
  • bookyear:1917
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Tillyard_Robin_John_1881_1937
  • booksubject:Dragon_flies
  • bookpublisher:Cambridge_Eng_University_Press
  • bookcontributor:University_of_California_Libraries
  • booksponsor:Internet_Archive
  • bookleafnumber:320
  • bookcollection:cdl
  • bookcollection:americana
  • BHL Collection
Flickr posted date
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7 August 2015

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current19:42, 19 September 2015Thumbnail for version as of 19:42, 19 September 20151,540 × 320 (88 KB) (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Title''': The biology of dragonflies (Odonata or Paraneuroptera)<br> '''Identifier''': biologyofdragonf00till ([https://commons.wikimedia.org/w/index.php?title=Special%3ASea...

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