Tag: WGNSS Entomology Group

Mating Harvestmen

macro, WGNSS Field Trips, wildlife, wildlife photography

During a WGNSS Entomology Group trip in September of last year, we were thrilled to come across a mating pair of Leiobunum vittatum (eastern harvestmen) at Caney Mountain Conservation Area. In some of the photos below, you can see the male handing off his prenuptial gift to the female. Prenuptial gifts are produced by the males and consist of a mix of essential amino acids. Mating behaviors in harvestmen are complex and vary wildly between taxa. Unfortunately, these guys were among thick scrub that made for difficult photography. I tried my best to capture some of this behavior.

First look at mating eastern harvestmen. Smaller male at back/left.
A closer look shows what I presume to be a prenuptial gift being handed off to the female at front/right.
Another look at mating embrace of Leiobunum vittatum (eastern harvestmen).

2025 Caterpillar Season – Harris’s Three-spot

2025 Caterpillar Season, insects, Lepidoptera, macro, WGNSS Field Trips, wildlife, wildlife photography

Harris’s Three-spot
Harrisimemna trisignata fam. Noctuidae (Hodges#9286)
Host plant: buttonbush (Cephalanthus occidentalis)
Date found: ~16, Aug, 2025
Location found: Franklin County, MO
Click here to see the adult moth
Notes: Part spider and part bird dropping, this caterpillar is absolutely astounding. Note the empty head capsules that the caterpillar retains with each successive molt. It has been shown that these caterpillars use these to thrash at potential parasitoid wasps and flies that approach while attempting to deposit eggs on their would-be hosts.

Special thanks to Eva Wiedeman who found this individual in her neighborhood and brought it to our WGNSS fieldtrip at Council Bluff Lake. Photographing this caterpillar was a prime objective for me this season. Now I just need to find one on my own and hopefully a larger 4th instar!