File:A year of Costa Rican natural history (1917) (14781939134).jpg

Identifier: yearofcostarican00calv (find matches)
Title: A year of Costa Rican natural history
Year: 1917 (1910s)
Authors: Calvert, Amelia Smith, b. 1876 Calvert, Philip Powell, b. 1871 joint author
Subjects: Natural history -- Costa Rica Costa Rica -- Description and travel
Publisher: New York, The Macmillan company
Contributing Library: Brown University Library
Digitizing Sponsor: Brown University

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Text Appearing Before Image:
4- I, 2. Thaumatoncura inopinata, male and iemale x4. 200
Text Appearing After Image:
Pile a sp.Myrincarpa sp. To IlUC p. 20I JUAN VINAS—THE WATERFALLS 20l transportation that goes a long way to explaining the suddenappearance of large numbers of diatoms in new localities.I therefore look upon this rather abundant flora on theminute leg of this aquatic insect as of some scientific impor-tance. Of course in this case the power to fly does not existuntil a later period of development, but many of the waterbeetles and other insects are doubtless coated with livingdiatoms in the same way. Professor Manns letter led tothe scraping of the legs and bodies of our adult specimens ofThaumatoneura and in this minute quantity of dust hefound about sixty diatoms, thus confirming his conjectureas to the part insects play in spreading these unicellularplants. Other insects lived at the waterfalls. At one, on June 24,we secured an extraordinary little creature, something likea leaf-hopper, equipped at its hind end with a long thickbrush of iridescent hairs, which could be spread ope

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