David Element

 

Wildlife Photography and Digital Video Images

 

 

___________________________________________Dragonflies and Damselflies 43 – Western Demoiselles

 

 

 

 

 

 

                                                                        WESTERN OR YELLOW-TAILED DEMOISELLE Calopteryx xanthostoma (m)

 

 

                                                                        WESTERN OR YELLOW-TAILED DEMOISELLE Calopteryx xanthostoma (m)

 

 

                                                                        WESTERN OR YELLOW-TAILED DEMOISELLE Calopteryx xanthostoma (m)

 

 

 

                                                                   WESTERN OR YELLOW-TAILED DEMOISELLE Calopteryx xanthostoma (m, f)

 

 

·         The Western or Yellow-tailed Demoiselle Calopteryx xanthostoma is the Iberian equivalent of the Banded Demoiselle Calopteryx splendens with some overlapping of the ranges in the South of France and North West Italy. C. xanthostoma is most easily identified by examining the wings of the males as the dark blue clouding reaches the very end of the wing-tips. Females are easiest to identify by association with the males although this shouldn’t be a problem in areas where C. splendens is known to be absent. Note that the wing pigmentation in C. xanthostoma males develops after emergence according to ‘Field Guide to the Dragonflies of Britain and Europe’ Dijkstra & Lewington, British Wildlife Publishing, 2006.  Although in some parts of Europe there are forms of C. splendens in which the clouding also reaches the wing-tips these are clear in the typical form and these insects emerge with fully coloured wings. There is also no overlapping of these species in Portugal where this photographs was taken. The ‘Yellow-tailed’ synonym refers to the creamy-yellow ‘tail-light’ under the tip of the male’s abdomen. Although not visible in the photographs these are used to signal to the females in combination with elaborate wing-waving, as illustrated in the second and third images. A pair is shown in tandem in the fourth photograph.

 

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