Page 36 - 2020 May/June Outdoor Oklahoma
P. 36

ready to lay eggs in or near a source of water.
                                                                 Eggs hatch  in  one  to eight  weeks. Odes  go
                                                               through incomplete metamorphosis, so instead
                                                               of a caterpillar stage, they hatch out as an under-

                                                               water larval stage (called a nymph). They prey
                                                               upon other aquatic insects and as they grow, and
                                                               they will molt periodically. For their final molt
                                                               into adulthood, they climb out of the water onto
                                                               a cattail, boat dock or something similar. The top
                                                               of the thorax splits, and the new adult pulls itself
                                                               out. Fluid pumps into the wings, which expand and
                                                               harden. The young adult (called a teneral) is still
                                                               not mature. It still takes a couple weeks for it to

                                                               obtain its full adult coloring, and then the cycle
                                                               starts over again.
                                                                 Observing dragonflies and damselflies has
                                                               become a popular hobby. The best place to look
                                                               for them is along any body of water. It doesn’t
                                                               require special equipment, but close-focusing bin-
                                                               oculars and a field guide are good tools to have.

                                                                 A  new  book  about  these  insects  in  Oklahoma,
                                                               “Dragonflies at a Biogeographical Crossroads: The
                                                               Odonata  of  Oklahoma  and  Complexities  Beyond
                                                               Its Borders,” is planned for release in June. (https://
                                                               www.crcpress.com/9780367440350). This lavish-
                                                               ly illustrated book written by Brenda D. Smith and
                                                               Michael A. Patten, two Oklahoma Biological Survey



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