kids encyclopedia robot

Image: Orthetrum julia & O. stemmale wing detail

Kids Encyclopedia Facts
Original image ‎(542 × 763 pixels, file size: 118 KB, MIME type: image/jpeg)

Description: In south-eastern Africa, Orthetrum julia falsum and Orthetrum stemmale appear similar. The important differences are in wing details shown in these photographs. O. julia falsum (top) has dark subcostal Ax and has one row of cells in the radial planate (generally less than 10 cells doubled - summed over the radial planates of the four wings). This example shows a single doubled cell on each wing. O. stemmale (bottom) has pale subcostal Ax and usually at least ten cells doubled in total over the four wings - this example shows three doubled cells in the radial planate of the forewing. The pterostigma of O. julia falsum is generally dark, whereas that of O. stemmale is pale.
Title: Orthetrum julia & O. stemmale wing detail
Credit: Own work
Author: Alandmanson
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: https://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes

The following page links to this image:

kids search engine
All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise.