Category Archives: Unsolved Mysteries

Monthly Mystery #16: Tubes on Silver Raisin

Yesterday a friend forwarded me this photo that had been posted to the “Southern Africa Butterflies, Bugs, Bees and other small things” Facebook group to see if I had a clue what it was.  At first, I didn’t.  The photographer, … Continue reading

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Monthly Mystery #15: Crawl Space Creatures

You’ll have to follow this link to see this month’s mystery objects, since I emailed the photographer for permission to re-post the photos and he hasn’t responded.  His caption reads: “These mounds are in the crawl space of a house. … Continue reading

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Monthly Mystery #14: Holes and Tunnels in Agave Leaves

On page 302 of Tracks & Sign of Insects, there is a photo of a fleshy yucca leaf riddled with holes, next to a close-up of the eggs Noah found in one of the holes.  As explained in the text, after … Continue reading

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Monthly Mystery #13: Slant-lines and Lady’s Slippers

In May of 2009, I took this photo of a moth resting on a pink lady’s slipper in western Massachusetts and posted it on BugGuide.net: It was quickly identified as a “white slant-line” (Geometridae: Tetracis cachexiata)–a fitting common name–and I … 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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Cribellate Spiders, and Some More Thoughts on that Mysterious Thing from Peru

Photos of this intricate silken structure, to which I shared my immediate reactions here, have been spread around sufficiently that it’s pretty clear nobody (at least nobody with access to the internet) knows what made it. I did have another thought or … Continue reading

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Monthly Mystery #10: Bees in a Mud Nest

An interesting series of photos was recently moved to BugGuide’s “Frass” section (a place where rejected submissions are held temporarily before being deleted forever), so I thought I would salvage them and post them here so they can continue to … Continue reading

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A most bizarre and mysterious cocoon

I’ve never “reblogged” something before (and maybe I won’t again, now that I see that WordPress ignores the paragraph breaks in a reblog), but several people have forwarded this to me, asking for my thoughts on it, and it does … Continue reading

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Monthly Mystery #9: Groovy Decay

I’m sure few people will recognize that the title of this post was taken from Robyn Hitchcock’s second solo album, but it seemed appropriate nonetheless. Several weeks ago, I collected some quaking aspen (Populus tremuloides) leaves to try to raise … Continue reading

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Monthly Mystery #8: Eggs Under Water Lilies

At this time of year, there is a seemingly endless variety of mysterious eggs to be found all over the landscape.  In browsing through my folders of unidentified invertebrate signs just now, I came across photos of two different types … Continue reading

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