Fwd: Eagle Hill Field Seminar - August 16–22 - Tracks and Sign of Insects & Other Invertebrates

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Ellen Hostert

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Jul 15, 2026, 12:51:53 PM (11 days ago) Jul 15
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From: Eagle Hill Institute <off...@eaglehill.us>
Date: Tue, Jul 14, 2026 at 2:25 PM
Subject: Eagle Hill Field Seminar - August 16–22 - Tracks and Sign of Insects & Other Invertebrates
To: <ehos...@maine.edu>


Instructor: Charley Eiseman

Upcoming Eagle Hill Seminar!



Tracks and Sign of Insects and Other Invertebrates


August 16–22, 2026

Seminar Calendar
Register Here
General Info

Title: Tracks and Sign of Insects and Other Invertebrates

Scheduling Details: August 16–22, 2026



Description: This course addresses the full spectrum of topics covered in my book by the same name, with an emphasis on signs found on plants. We will explore a variety of habitats in search of leaf mines and other feeding sign, galls, eggs and egg cases, cocoons, nests, webs, burrows, and other objects and patterns created by insects, arachnids, snails, worms, etc. In the process of identifying these features we will discuss the life histories and ecology of numerous species. In the lab we will examine items collected in the field, both to observe details that require magnification and to investigate mysteries. Slideshow presentations will give overviews of the categories of invertebrate signs as well as introduce students to the often little-known creatures responsible for them.


Charley Eiseman (ceis...@gmail.com) is a freelance naturalist based in western Massachusetts. He has been conducting plant and wildlife surveys and natural resource inventories throughout New England for over 25 years. He holds an MS in Botany (Field Naturalist) from the University of Vermont and a BS in Wildlife and Fisheries Conservation and Management from the University of Massachusetts. Charley is the lead author of Tracks & Sign of Insects and Other Invertebrates and has published 90+ scientific papers on insect natural history, including the description of over 110 new species. He also writes an insect-themed blog, “BugTracks,” and is currently self-publishing the third edition of Leafminers of North America, a serial e-book of which the second edition was completed in 2022.

Each summer since 1987, regional and national authorities in the field of natural history have come to the Eagle Hill Institute on the Eastern Maine Coast to lead intensive seminars on their specialties. Seminars involve field trips that are focused on learning about the ecology of species in their natural outdoor environment. The indoor classroom part of these seminars includes lectures, discussions, and lab identifications and studies of specimens that have been collected in the field. They begin with a Sunday late afternoon arrival and dinner at 7 PM, followed by an introductory program. Mondays through Fridays are full teaching days, with meal times as relaxed settings for informal discussions. Evenings are set aside for discussions by the fireplace in the dining hall's comfortable lounge or for follow-up classroom activities. They conclude after breakfast on Saturday. For more information on seminar registration and costs, click here.


Early Registration Discounts. Save on tuition costs by registering for seminars early—6% if you register at least 8 weeks before the start-date of a seminar, or 3% if at least 4 weeks before. To qualify, your registration must be accompanied by a deposit or purchase order. Early registration discounts apply only to tuition, but are calculated before, and cumulate with, other general discounts you qualify for.


Student Discounts. Both undergraduate and graduate students receive an automatic 15% discount off tuition and accommodations—upped to 30% with a faculty letter of recommendation.



Contact Us!

off...@eaglehill.us

207-546-2821 Ext.4

Eagle Hill Institute

PO Box 9, 59 Eagle Hill Road

Steuben, ME, 04680-0009

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Eagle Hill Institute | 59 Eagle Hill Road | Steuben, ME 04680 US

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Ellen E. Hostert, Ph.D. (she/her)
Professor of Biology
University of Maine at Machias
116 O'Brien Avenue
Machias, ME 04654
(207) 255-1301
ehos...@maine.edu
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