Phylloxera galls - Caryomyia

Moved

Moved from galls.

… Charley Eiseman, 16 August, 2008 - 2:39pm

Hickory, yes, Phylloxera, no.

My thought that the galls I often see on hickories are made by phylloxeras was based on a mis-remembering of something I'd seen in Hutchins. They are made by midges, genus Caryomyia. Hutchins has a photo of the pointy ones but does not name the species. Gagne has an illustration that matches the fuzzy one and labels it C. persicoides. He only illustrates the ones with named species associated with them, and notes that at least 30 other kinds are known.

There is a phylloxera hickory gall that looks something like the fuzzy one--you can compare the texture with this one that I cut open:

… Charley Eiseman, 16 August, 2008 - 2:36pm

Charley

Thanks for getting these galls identified, even when I misidentified the host tree.

… tom murray, 16 August, 2008 - 3:01pm

Gall(s)?

Looks like two types of galls there. Knowing the tree host is paramount to identifying anything like this.

… Eric R. Eaton, 12 August, 2005 - 6:01pm

Chestnut tree

The host was a chestnut tree. Maybe that'll help. Thanks Eric.

… tom murray, 12 August, 2005 - 8:37pm

Chestnut?

That doesn't look like a chestnut leaf to me... it looks like it could be a hickory leaflet, and both types of galls look like Phylloxera galls I've seen on hickories.

… Charley Eiseman, 26 June, 2008 - 8:01pm

Charlie

You're most likely right. I'll have to go back there sometime and take a closer look at the tree.

… tom murray, 1 July, 2008 - 9:48am