File:PSM V20 D472 Tracheal system of a water bug and of the larva of an aeschna.jpg
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![File:PSM V20 D472 Tracheal system of a water bug and of the larva of an aeschna.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/PSM_V20_D472_Tracheal_system_of_a_water_bug_and_of_the_larva_of_an_aeschna.jpg/536px-PSM_V20_D472_Tracheal_system_of_a_water_bug_and_of_the_larva_of_an_aeschna.jpg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:40, 15 May 2014 | ![]() | 1,421 × 1,590 (347 KB) | Ineuw | Cleaned image & improved contrast |
23:57, 22 August 2010 | ![]() | 1,413 × 1,588 (316 KB) | Ineuw | {{Information |Description = Tracheal system of a water bug and of the larva of an aeschina |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_20.djvu/472 |Date = 1881-1882 |Author = Unknown |Permission = {{PD-old}} |other_v |
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