Clubtails (Gomphidae):
Many Clubtail species can be identified by the topspots and sidespots on their abdomen. Males can also be identified by their club and terminal appendages. Females may need to have their subgenital plates
examined to distinguish between some of the similar looking species
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Horned Clubtail
Arigomphus cornutus
Lilypad Clubtail
Arigomphus furcifer
Jade Clubtail
Arigomphus submedianus
Unicorn Clubtail
Arigomphus villosipes
Ashy Clubtail
Phanogomphus lividus
Dusky Clubtail
Phanogomphus spicatus
Lancet Clubtail
Phanogomphus exilis
Pronghorn Clubtail
Phanogomphus graslinellus
Rapids Clubtail
Phanogomphus quadricolor
Midland Clubtail
Gomphurus fraternus
Skillet Clubtail
Gomphurus ventricosus
Plains Clubtail
Gomphurus externus