Tag Archives: gall

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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Hackberry Midge Galls Revisited

In yesterday’s mail I was pleasantly surprised to find a copy of Raymond J. Gagné’s new paper on hackberry gall midges*.  As promised, I am following up with more information on the galls pictured in this post from two years ago. … Continue reading

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Beggarticks Stem Dwellers

Last August, on one of my visits to Nantucket for my survey of gall-making and leaf-mining insects on the island, I spotted a conspicuous gall that was new to me, in a beggarticks (Asteraceae: Bidens) stem. I broke off the stem … Continue reading

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