Exuviae of Aeshnidae 3

The final renewal day of this page is March 28, 2006.

 English version   Exuviae of Aeshnidae 1    Exuviae of Aeshnidae 2   

This page is exuviae of Anax. These 3 speciess of exuviae resemble.  However, with the difference type of Labium and end hook we are distinguished these. 

As for the size of Labium, there is a variation by an individual. None the less, we become the viewpoint that distinguishes these. Labium of Anax guttatus is clearly more elongate than other 2 species.

Each sign is expressing the following.  a: labium, b: figure that saw the head from the back, c: female primary genitalia, d: end hook of labium

12 Anax parthenope julius Brauer　Size of exuviae　Length: 46-57（average:52.6）mm, Head width :9.5mm, Width of the abdomen: 9.8mm ( The width of the abdomen is a maximum value.) Lateral spine is in 7-9 abdominal segment. 13 Anax guttatus (Burmeister)　Size of exuviae　Length: 50-52（average:51.5）mm, Head width :9.5mm, Width of the abdomen: 10.5mm ( The width of the abdomen is a maximum value.) Lateral spine is in 7-9 abdominal segment. 14  Anax nigrofasciatus nigrofasciatus Oguma　Size of exuviae　Length: 46-53（average:48.6）mm, Head width :9.2mm, Width of the abdomen: 9.3mm ( The width of the abdomen is a maximum value.) Lateral spine is in 7-9 abdominal segment.