(Arigomphus submedianus)
rigomphus submedianus is a dragonfly in the Gomphidae family. Its total length is 51 to 55mm. Arigomphus is a genus of dragonflies of the Gomphidae family. This group is commonly called the pond clubtails. The species are fairly plain and only the males have the club-shaped abdomen. Unlike other gomphids, they may emerge from artificial ponds