Tag Archives: Cynipidae

Arizona Oak Galls, Part 5

Here is yet another gall from Arizona white oak. It is another “oak apple,” superficially similar to these, which I now know to be Atrusca aggregata (thanks to Jim Zimmerman, who has studied southwestern cynipid galls for many years and … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , | Leave a comment

Arizona Oak Galls, Part 4

Here is yet another type of gall found on the underside of oak leaves in Madera Canyon. Seven weeks after I collected these, two parasitoids emerged. The one above is another male Torymus (Torymidae), which may or may not be the same … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , | Leave a comment

Arizona Oak Galls, Part 3

Okay, having looked at photos of all the possible species, I’m pretty well satisfied that Arizona white oak (Quercus arizonica) was the host of all of the galls I collected in Madera Canyon that actually produced adult cynipid wasps. Armed … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , , , | 1 Comment

Arizona Oak Galls, Part 2

Gall #2 is a fancy cup-shaped one found on the undersides of leaves, sometimes in clusters. A month after I collected them, the galls (kept in a tightly sealed vial) had become covered with mold, but a single wasp chewed … Continue reading

Posted in Uncategorized | Tagged , , , , , , , | Leave a comment

Arizona Oak Galls, Part 1

On my trip around the western US in the fall of 2012, I mostly limited my collecting to leafminers.  However, I made an exception when I got to Madera Canyon, Arizona, because I had found all kinds of interesting oak … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , | 7 Comments

Two-year Gall

This may be a pretty generic-looking gall wasp (Cynipidae), but it has an interesting history.  My first visit to Nantucket, in September 2011, was an intensive four-day survey with Noah Charney and Sydne Record in which we documented as many … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , | 5 Comments

Monthly Mystery #11: Water Oak Galls

There is a distinctive oak gall that has shown up on BugGuide several times, and I have been unable to identify it with my gall references.  The only way to get to the bottom of a mystery like this is … Continue reading

Posted in Unsolved Mysteries | Tagged , , , , , , , | 9 Comments

Eupelmids

Last August on Nantucket I collected some yellow galls on the midribs of dwarf chinquapin oak (Quercus prinoides) leaves.  They are unlike any that I have found before or since, and I have found no references to them in literature, … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , | Leave a comment

Big, Beautiful Parasitoids

As illustrated by my last post, I’ve resumed working my way through sorting my old photos and have now made it up to this past April.  On April 18, a wasp emerged from a small “oak apple” gall I had … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , | 9 Comments

Overwintering Oak Galls

Last October I spotted a couple of tiny, pearl-like cynipid wasp galls on the underside of a fallen white oak (Quercus alba) leaf. I stuck the leaf in a plastic bag to see if anything would emerge in the spring. … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , | 6 Comments