Showing posts with label dragonfly. Show all posts
Showing posts with label dragonfly. Show all posts
Monday, August 20, 2018
Sunday, August 19, 2018
Wednesday, August 5, 2015
Dragon Flies at Great Swamp Conservancy in Canastota
| Characteristic | Dragonfly | Damselfly |
| Eyes | most have eyes that touch, or nearly touch, at the top of the head | eyes are clearly separated, usually appearing to each side of the head |
| Body | usually stocky | usually long and slender |
| Wing Shape | dissimilar wing pairs, with hind wings broader at the base | all wings similar in shape |
| Position at Rest | wings held open, horizontally or downwards | wings held closed, usually over abdomen |
| Discal Cell | divided into triangles | undivided, quadrilateral |
| Male Appendages | pair of superior anal appendages, single inferior appendage | two pairs of anal appendages |
| Female Appendages | most have vestigial ovipositors | functional ovipositors |
| Larvae | breathe through rectal tracheal gills; stocky bodies | breathe through caudal gills; slender bodies |
Labels:
Canastota,
dragonfly,
Great Swamp Conservancy
Wednesday, June 17, 2015
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