What
Oak Gall Wasps (Tribe Cynipini)Observer
louisnastasiDescription
Erupting twig gall on red oak group species
What
Apical Rosinweed Gall Wasp (Antistrophus silphii)Observer
louisnastasiDescription
Silphium integrifolium x trifoliatum hybrid
What
Genus AntistrophusObserver
louisnastasiDescription
Silphium integrifolium x trifoliatum hybrid
What
Genus AntistrophusObserver
louisnastasiDescription
Cryptic galls of A. rufus or A. minor - not decipherable as larvae or galls
What
Genus AntistrophusObserver
louisnastasiDescription
Cryptic galls in basal leaf petiole of Silphium laciniatum
What
Apical Rosinweed Gall Wasp (Antistrophus silphii)Observer
louisnastasiDescription
Silphium integrifolium
What
Genus AntistrophusObserver
louisnastasiDescription
Cryptic galls in stem of Silphium integrifolium
Photos / Sounds
What
Silphium Rust (Puccinia silphii)Observer
louisnastasiDescription
Leaf blister gall on upper leaf of Silphium integrifolium. On same stem as galls of A. silphii and floret galls in inflorescence
Photos / Sounds
What
Genus MordellistenaObserver
louisnastasiDescription
In gallery in senesced stem of Silphium integrifolium
What
Genus AntistrophusObserver
louisnastasiDescription
Undescribed cryptic gall chambers in stem of Silphium integrifolium
Photos / Sounds
What
Tall Blue Lettuce (Lactuca biennis)Observer
louisnastasiDescription
Several plants in this area
Photos / Sounds
What
Tall Rattlesnake Root (Nabalus altissimus)Observer
louisnastasiDescription
Absolutely enormous plant - this population is pretty large but no signs of cynipid galls