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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Tenebrionoidea » Narrow-waisted Bark Beetles (Salpingidae) » False Tiger Beetles (Elacatis) » Elacatis immaculatus
Photo#591501
Coleopteran - Elacatis immaculatus - male
Copyright © 2011 Jeff Gruber & UW-Madison Dept. of Entomology

Coleopteran - Elacatis immaculatus - Male
Peppersauce Canyon, Santa Catalina Mountains, Pinal County, Arizona, USA
October 10, 2011
Size: 5mm
Collected from rotting bases of fronds of dead sotol, upper canyon wall.

All pics taken with automontage system. Actual montaging done with CombineZP.

Note - abdominal distension due to being mounted and imaged soon after removal from alcohol.

Haven't attempted to key this to family. I think it may be an aberrant phalacrid ;-). Isn't v's rule 'If you're stumped, 90% of the time it will be a phalacrid.'? ;-)

Images of this individual: tag all
Coleopteran - Elacatis immaculatus - male Coleopteran - Elacatis immaculatus Coleopteran - Elacatis immaculatus Coleopteran - Elacatis immaculatus Coleopteran - Elacatis immaculatus Coleopteran - Elacatis immaculatus
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Contributed by Jeff Gruber on 31 October, 2011 - 5:43pm
Last updated 21 March, 2016 - 10:57pm

Moved
Moved from False Tiger Beetles.
… v belov, 21 March, 2016 - 10:53pm login or register to post comments

Darren Pollock: "It's one of mine, a sp. of Elacatis...
"There are two dorsally flattened spp. found down in Arizona and further south. I'm actually in the process of getting the names sorted, so the jury's still out on what it will eventually be called. Good one, though!"

Moved from Beetles.
… v belov, 1 November, 2011 - 3:56am login or register to post comments

 
flat, brown Elacatis
Well, I'm still trying to finish off the revision of the North American species of Elacatis. Through the kindness of those associated with the U. Wisc. insect collection, I was able to borrow this specimen (and others in the series). It represents one of two Mexican species described originally by Champion (planatus or immaculicollis) or something completely new. I will hopefully be in possession of Champion's types and will be able to make a definitive judgement on its identity. It's excellent that this specimen has good "bio-context" data (good job, Jeff!)
… beetledude63, 21 March, 2016 - 10:12pm login or register to post comments

Not Monotomid, but v's point
Is still relevant. Male monotomids of most of the genera have tarsi of 5-5-4 formula, but you can almost NEVER see it, so I doubt this is a monotomid ;) Actually, the antennal formula is what eliminates it. Monotomids have a 10-segmented antennae, with a one or two-segmented antennal club. The last true antennal segment is withdraw into the second to last one in monotomids.

That said, it does have a deceptive monotomid geschtalt. Add it to the list of monotomid look-alikes.
… Tommy McElrath, 31 October, 2011 - 10:02pm login or register to post comments

wow... must be a monotomid
males may have the 5-5-4 TF
… v belov, 31 October, 2011 - 9:53pm login or register to post comments

I think he meant 'tenebrionid'
:-)
… Tim Loh, 31 October, 2011 - 5:46pm login or register to post comments

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