Butterfly sighting

Aug 20

Mike Reese

Location: York Prairie State Natural Area
Green County

Checking this site out for robber flies. I only saw one Promachus vertebratus, but had several Efferia land on me besides this one that was laying eggs on Cylindrical Blazing-Star.

Tawny-edged Skipper

Tawny-edged Skipper

Efferia aestuans

Efferia aestuans

Promachus vertebratus

Promachus vertebratus

Holcocephala calva

Holcocephala calva