Author Archives: Charley Eiseman

About Charley Eiseman

I am a freelance naturalist, endlessly fascinated by the interconnections of all the living and nonliving things around me. I am the lead author of Tracks & Sign of Insects and Other Invertebrates (Stackpole Books, 2010), and continue to collect photographs and information on this subject. These days I am especially drawn to galls, leaf mines, and other plant-insect interactions.

Life in a Wingstem Stem

On May 8 last year, Julia and I visited her family’s land in Hocking County, Ohio (which we’ll be doing again today, as it happens), and for whatever reason, a little clump of dead wingstem (Asteraceae: Verbesina alternifolia) stems from … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | 4 Comments

How Many New Species? 2021 Update

Someone asked me the other day how many new species I’ve found, and I realized that in addition to not being able to give a straight answer for the reasons discussed below, I’d lost track of how many species I’ve … Continue reading

Posted in Uncategorized | 6 Comments

Pine Needle Bananas – Mystery Solved!

Nine years ago this month, I published the first in a series of “monthly mystery” posts in which I wrote about nagging natural history mysteries with the hope that someone out there might have some answers, or at least suggest … Continue reading

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

Another Sawfly Surprise

I’m finally getting back to working on my guide to sawfly larvae, after a very busy field season followed by several weeks of focusing on writing papers—some of which have involved documenting new host records and previously undescribed sawfly larvae, … Continue reading

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

An Underexplored Microhabitat

Although most of what used to be my lawn is now an untamed meadow interspersed with gardens, fruit trees, and berry bushes, once a month or so I do break out the ol’ battery-powered lawnmower to maintain a network of … Continue reading

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

Oak Shotholes

At the moment there are 648 observations on iNaturalist purporting to show the “oak shothole leafminer” (Agromyzidae: Japanagromyza viridula). Apparently I have personally verified 93 of them, in almost all cases based on the presence of leaf mines. Virtually all … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , , , | 8 Comments

And we’re back!

It’s been just over four months since I last posted here, and I’ve got a few updates to share. First of all, I’m alive and well; it’s just been an extremely busy field season! In contrast with last year, when … Continue reading

Posted in Uncategorized | 4 Comments

Leafminers For All!

Two years and two weeks ago, I announced the completion of the first edition of my Leafminers of North America e-book. It’s been gratifying to see more and more people all across North America looking for leaf mines, successfully using … Continue reading

Posted in Uncategorized | 4 Comments

One Weird Inchworm

This morning I had a look around my yard after being away for the past week, and I met this fantastic creature on a leaf of one of our cultivated hazelnuts: Its body was awkwardly contorted, and it took me … Continue reading

Posted in Uncategorized | Tagged , , , , , | 10 Comments

More and more

Adults have emerged from another 20 or so overwintered vials and jars since my previous post. Here are some more that came from larvae collected right in my yard. On June 21, I collected these larvae from one of our … Continue reading

Posted in Uncategorized | 2 Comments