Rhinocyllus, U, back, U_2014-01-17-18.28.15 ZS PMax

Description:

Rhinocyllus conicus, the Eurasian flower head weevil, infests flower heads of Pitcher's thistle at the Indiana Dunes National Lakeshore. Its presence was first discovered in 2012. The weevil is a biocontrol agent for musk thistle, Carduus nutans. Picture by Wayne Boo. Canon Mark II 5D, Zerene Stacker, 65mm Canon MP-E 1-5X macro lens, Twin Macro Flash, F5.0, ISO 100, Shutter Speed 200, link to a .pdf of our set up is located in our profile