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Photo#1484161
Cecidomyiidae on Jack in the Pulpit leaves

Cecidomyiidae on Jack in the Pulpit leaves
Plymouth Rock, Winneshiek County, Iowa, USA
May 23, 2017
Size: 1 mm
I have never been able to rear a single adult fly from the orange larvae on rust.
These were collected on leaves of Jack in the Pulpit,Arisaema triphyllum
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