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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Ground Spiders (Gnaphosidae) » Callilepis » Callilepis imbecilla
Photo#658472
C. imbecilla - dorsal - Callilepis imbecilla - male
Copyright © 2012 Joe Lapp

C. imbecilla - dorsal - Callilepis imbecilla - Male
Brackenridge Field Lab, U. Texas, Austin, Travis County, Texas, USA
April 17, 2012
Size: 4.7mm
Found in leaf litter midday. Keys out to Callilepis imbecilla in both Platnick 1975 ("A Revision of the Holarctic Spider Genus Calilepis") and Platnick and Dondale 1992 ("The Ground Spiders of Canada and Alaska"). I wonder how it got that species name.

Has a single lobed tooth on the cheliceral retromargin. The palpal conductor bends back at it's tip, but it's hard to see that from these photos. The first palp photo is a strictly ventral one that I took with a barlow lens. The second one is at an angle and makes it clearer that the conductor tip is bent back. Were the tip not bent back, this would be C. chisos

Images of this individual: tag all
C. imbecilla - dorsal - Callilepis imbecilla - male C. imbecilla - ventral - Callilepis imbecilla - male C. imbecilla - ventral palp - Callilepis imbecilla - male C. imbecilla - angled ventral palp - Callilepis imbecilla - male C. imbecilla - in alcohol - Callilepis imbecilla - male
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Contributed by Joe Lapp on 17 June, 2012 - 10:49am

Nice work, Joe!
Nice work, Joe!
… Kevin Pfeiffer, 28 June, 2012 - 6:25am login or register to post comments

Moved
Moved from ID Request.
… Joe Lapp, 17 June, 2012 - 11:31am login or register to post comments

male Callilepis imbecilla
Wonderful. I made a new guide page for you. Do you think the gold wears off when they are kept in alcohol? BOLD's image has no gold pattern, but I've found that BOLD's images are often different than the live specimens which I think we've talked about before.
… Lynette Elliott, 17 June, 2012 - 11:01am login or register to post comments

 
Posted image
I realized I could just get another photo and post it, so you can see what it looks like after two days in alcohol. So that's what I did.
… Joe Lapp, 18 June, 2012 - 3:04pm login or register to post comments

 
..
Looking at the spider now, in alcohol, it looks really different. It took me a moment to figure out how the abdominal pattern might have matched up. The black regions seem to have become larger, encircling the abdomen, and dorsally, where there were large metallic bands, there are now only small orange patches. It still doesn't look all black like the one in the BOLD database, but if the dark areas keep spreading, maybe it eventually will.
… Joe Lapp, 18 June, 2012 - 2:47pm login or register to post comments

 
Ah ha
yes it already looks quite different. Nice.
… Lynette Elliott, 18 June, 2012 - 3:04pm login or register to post comments

 
T/Y
Thank you! I'm starting to take an interest in the gnaphosids too.
… Joe Lapp, 17 June, 2012 - 11:32am login or register to post comments

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