Your aha moments with mystery observations

Share those observations you encounter while IDing or observing but keeps one clueless and defies categorisation until there is some aha moment or knowledge gain. please add short comments if you are directly linking them.

I will start with few examples i saw on inat:

  1. unique moth caterpillar poop pattern that doesnt feel frass at all

  2. white lady beetle larva that still stumps inat CV as scale insects and also appears as entomopathogenic fungi but the organism is very much healthy atleast

  3. weird leaf beetle egg ? that looks poop mimicry

  4. slug caterpillar pupa barrel shape and good circular opening upon ecclosion - rare from non-predatory insect groups?

  5. cool fungus moth that stumped most as plant

  6. dried aster mystery - very long saga on guessing every kingdom for this - another reason on value of decent location markers/scale/notes.

  7. poltys spider egg sac - certifies as cotton candy lol

    A simple exclusion filter of those that doesnt fit in this discussion is anything correctly recognisable by iNat CV already - even if its cryptic to humans - and so must be popular and easy accessibility to learn those by anyone eventually. (hopefully every discussion here and those observation groups get there someday)

    and major inclusion factor to post here would be those observations that looks plausible in multiple hierarchical tree paths at same time and keeps the identification challenging at initial stages to not let CID go down to one side confidently - so even if it is popular taxa but the way it is observed and presented kept the ID challenging. As in 6th example above - is it plant part? or is it marine? or weird fungi?

    so post things here only after they are categorised somehow by community and consensus on one path. broader unsolved mystery observations as for example spider silkhenge are also welcome here but not the primary focus.

feel free to use this thread as journal as you encounter those mystery observations anytime and post here after there is atleast some consensus in IDs eventually for those. This topic is meant as educational and collecting those mystery observations that will also help everyone (maybe one can create project in future of these unique linked observations as - Getting started for unknowns IDers lol )

Here is a very relevant project I noticed to find those kinds of observations (not all are solved ofc) and have fun adding yours - https://www.inaturalist.org/projects/weirdwildwonders

and also a shoutout to epic journal posts of @treegrow if anyone missed - https://www.inaturalist.org/projects/eggs-egg-coverings-of-terrestrial-invertebrates/journal

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Thanks for the link to the eggs journal posts. That is brilliant!

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The discussion about the moth is so long. I have never so many comments on anything iNat related. Crazy. I have nothing that can compete but for me, a lot of stuff that I find is a “Oooh, that’s what that is” moment…

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https://www.inaturalist.org/observations/224224431

It took me almost a year to realize this was a beetle mine, I was so sure it was a lepidopteran. I found out while trying to identify other adult Trachys and I saw pictures of their mines

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These goldfish crackers had me stumped for a long time, and at least now I know vaguely what they are but I wish I knew more!

And still unsolved but I just have no idea what this larva is. The beetle people say it’s a caterpillar and the moth people say it’s a beetle larva!

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I am still confused, but at least it’s IDed to class!

https://www.inaturalist.org/observations/248896795

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I have literally got so many instance where no-one knows what species the hopper is of but then I can id it instantly…

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Still working toward an a-ha moment on this one - have eliminated poop so far https://www.inaturalist.org/observations/239970831

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this one had me laughing… and stumped for a while

https://www.inaturalist.org/observations/151605367

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Somewhere is an obs I struggled with. Also dead, and beheaded. Which made it hard to recognise a ‘big headed beetle’ the first time I saw it observed.

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welcome to forum, and i did thought its those ant mimic spiders at first from color but yes overall structure is still ant. those spider mimics are deliberately imperfect.


Murex snail egg case - made me think as plastic rope

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As soon as I opened it, I saw that it was fungal. Beyond that, I also don’t know.

I like to go through things that are identified as fungi and try to get them down to at least order. Common things misidentified as fungi include gummation (stiffened tree sap), gastropod eggs, bird poop, and spray paint. As a member of my local mycological society, I am often sent pictures of “fungal” dog toys and soggy pompoms as well.

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I remain semi-stumped by one of my own observations, and it’s the only time I have ever been torn between three Kingdoms for an observation (I currently have it over-IDed at phylum as Cyanobacteria; it resembles a green boba tea, but I am of course certain it’s not):

https://www.inaturalist.org/observations/294526109

Perhaps had I realized how skilled the unknown IDers were, I would have left it there!

Another favorite of mine was realizing I apparently don’t know how to identify a peanut shell. Once someone else gave the ID, my brain was all of the sudden able to recognize it:

https://www.inaturalist.org/observations/316082114

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