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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Elateriformia » Byrrhoidea » Toe-winged Beetles (Ptilodactylidae) » Anchytarsinae » Anchytarsus
Photo#1100602
Anchytarsus bicolor (Melsheimer) - Anchytarsus
Copyright © 2015 Ken Karns

Anchytarsus bicolor (Melsheimer) - Anchytarsus
Upland Hardwood Forest with 2nd Order Streams, Author's Cabin Property, Vinton County, Ohio, USA
Size: 6.0 mm
Collected from a Lindgren Funnel Trap with Ethanol Lure. At first though this was an Alleculinae, but knew I had not encountered this one before. Tarsal formula 5-5-5, deflexed head, claws simple, legs piceous, femora paler, antennomeres 1-2 pale, and remainder of taxonomic features concur with description of A. bicolor of Downie and Arnett, 1996.

Images of this individual: tag all
Anchytarsus bicolor (Melsheimer) - Anchytarsus Anchytarsus bicolor (Melsheimer) - Anchytarsus Anchytarsus bicolor (Melsheimer) - Anchytarsus Anchytarsus bicolor (Melsheimer) - Anchytarsus
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Contributed by Ken Karns on 12 July, 2015 - 4:46pm

Blaine
I had my user name as something other than my actual name so I changed that.

So here's the thing, Downie and Arnett, 1996 lists a differential of Anchytarsus vs Ptilodactyla on that of the tarsomere 3 with Ptilodactyla having a large ventral lobe. My specimen does not.

Arnett et.al. 2002 (American Beetles Vol. 2), does not utilize the tarsomeres as taxonomic feature but my specimen agrees with all other characters in the key to genera.

I'll drop you an e-mail, getting many nice clickers...
… Ken Karns, 13 July, 2015 - 10:27am login or register to post comments

 
well, I have always trusted your identifications
:)
… Blaine Mathison, 13 July, 2015 - 11:21am login or register to post comments

Ran through Arnett et.al. 200
Ran through Arnett et.al. 2002 key to genera and went cleanly to Anchytarsus. I would like think I got this one correct but...? Thanks for taking a peek Blaine, nice hearing from you. I'll get an image of the genitalia.
… Ken Karns, 13 July, 2015 - 6:59am login or register to post comments

 
hey Ken!
I didn't even see this was from you! Haha.

Looking at the genitalia, this is a female (that looks like the ovipositor sticking out), that's what led me to Ptilodactyla (the females have non-pectinate antennae). I do not know the characteristics of Anchytarsus so I am not sure what off-hand would separate it from Ptilodactyla (other than, possibly, male antennae).

Email me sometime if you have some cool clickers!
… Blaine Mathison, 13 July, 2015 - 9:07am login or register to post comments

this appears to be a female Ptilodactyla sp.
… Blaine Mathison, 12 July, 2015 - 6:25pm login or register to post comments

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