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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Ground Beetles (Carabidae) » Trechinae » Bembidiini » Anillina » Anillinus » Anillinus folkertsioides
Photo#2169813
Anillinus folkertsioides - male
Copyright © 2022 Curt Harden

Anillinus folkertsioides - Male
near Horseshoe Cave, Blount County, Alabama, USA
September 18, 1975
Part of a series collected by Tim King under rocks near the cave entrance. Two other species, both undescribed, were also collected as part of the same event.
From the Carnegie Museum of Natural History collection.
Dissected and identified by me.

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Anillinus folkertsioides - male Anillinus folkertsioides - male Anillinus folkertsioides - male
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Contributed by Curt Harden on 30 August, 2022 - 5:35pm

Curt, Your work at Clemson University is truly inspirational
in that it regularly brings to light these tiny unknown beetles from a mysterious subterranean world. How small is this one? It's great when the male genitalia are able to provide a commanding key to species recognition. That kind of anatomic cooperation does not always occur as I disappointingly learned during my revisionary work on Discoderus.
… Peter W. Messer, 30 August, 2022 - 11:42pm login or register to post comments

 
Thanks,
I didn't measure it, but it was between 1.5 and 2mm.
The genitalia are usually good for Anillinus, but things get more complicated when you study more specimens from more places! Variation definitely exists, even within a sample.
… Curt Harden, 31 August, 2022 - 5:14pm login or register to post comments

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