I started searching May 23rd at Hudson Mills Metropark along the Huron River. Several exuviae and one emerging Rusty Snaketail (Ophiogomphus rupinsulensis) were found.
|emerging Rusty Snaketail (O. rupinsulensis)|
One of the collected exuviae appears to be Cobra Clubtail (G. vastus) and will be checked by another person or two.
Here is a closeup of the exuvia of the emerging snaketail.
|Rusty Snaketail (O. rupinsulensis) exuvia|
Also present were a few Rapids Clubtails (G. quadricolor) and a couple Cyrano Darners (Nasiaeschna pentacantha).
|male Rapids Clubtail (G. quadricolor)|
|male Cyrano Darner (N. pentacantha)|
On June 3rd Sharon Mills County Park had a few species including Unicorn Clubtail (Arigomphus villosipes).
|female Unicorn Clubtail (A. villosipes)|
|male Green-faced Clubtail (G. viridifrons)|
|dorsal view of a male Green-faced Clubtail's abdomen|
On June 13th, I returned to Delhi Metropark and finally had success with one of my targets. Flying adult Riverine Clubtails (S. amnicola) were out and I saw at least two males.
|male Riverine Clubtail (S. amnicola)|
I may have glimpsed a Cobra Clubtail (G. vastus) up in the trees, but it didn't allow a proper view for identification. Also present were approximately ten female Rusty Snaketails (O. rupinsulensis) perching in the vegetation away from the Huron River.
|female Rusty Snaketail (O. rupinsulensis)|
I returned to Delhi Metropark on June 18th and saw one Cobra Clubtail (G. vastus) but it was skittish and too far away to be photographed. There were also a couple young female Riverine Clubtails (S. amnicola).
|female Riverine Clubtail (S. amnicola)|
The Cobra Clubtail (G. vastus) eluded me throughout June, but I still have some time in July, or there's always next year.