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Snail-killer Carabid with mites

Scaphinotus angusticollis


3000th spotting! Scaphinotus angusticollis is a ground beetle with elongated head and mouth parts. This adaptation allows it to reach inside a snail's shell. The mites are of the Genus Poecilochirus and are considered phoretic rather than parasitic. So they are just hitching a ride but they may decide to reproduce.


Spotted in a mixed forest at Flaming Geyser State Park.

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SukanyaDatta a year ago

A beetle that preys on snails!!! Learn something new everyday...they always said...Thanks, Brian.

Neil Ross
Neil Ross a year ago

Excellent! Thanks, Brian.

Brian38 a year ago

Thanks, Neil and Sergio. Yep, thats perfect --- an "Uber bug". Neil, I just came across the word recently while researching. Here is the word used in a Flickr article that was very closely related:

Congrats Brian. So this kind of a Uber bug?

Neil Ross
Neil Ross a year ago

Congratulations on the 3K spottings, Brian. Such a wonderful milestone. A really interesting spotting it is too! I've not heard of the word 'phoretic' before, but I know about commensalisms.

Spotted by

Enumclaw, Washington, United States

Spotted on May 1, 2021
Submitted on May 2, 2021

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