Tag Archives: gall

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

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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

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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

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Green Islands

In Idaho at the end of September, 2012, Julia and I noticed some striking green spots on dogwood leaves that were otherwise senescing. As you may have noticed, each of them was centered along a major vein.  When we flipped … Continue reading

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Horse Balm Bugs

Back in September, Noah asked me if I had any interest in some galls he’d found on horse balm (Collinsonia canadensis), a native woodland mint that looks like this: He described them as “like giant butterfly eggs,” and the photo he … Continue reading

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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

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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

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