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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Sheetweb and Dwarf Spiders (Linyphiidae) » Sheetweb Spiders (Linyphiinae) » Agyneta » Agyneta fillmorana
Photo#1285523
Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male
Copyright © 2016 Ken Schneider

Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - Male
Onyx Summit along CA-38, San Bernardino National Forest, San Bernardino County, California, USA
August 29, 2016
Size: 2 mm
I beat this attractive little adult male spider from a juniper tree in the San Bernardino Mtns. around 8,000 feet elevation. I believe it is a linyphiid with a patterned abdomen, although the large fangs made me consider Dipoena for a while. It keys out to Lepthyphantes, but the palp does not appear to match L. mercedes (known from CA) or L. leprosus (introduced in CA), so it may be difficult to get to species - I'll try looking through palp images...

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Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male Male linyphiid with patterned abdomen - Lepthyphantes? - Agyneta fillmorana - male
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Contributed by Ken Schneider on 1 September, 2016 - 1:27pm
Last updated 3 September, 2016 - 8:48pm

Moved
Moved from Spiders.
… Laura P., 3 September, 2016 - 8:48pm login or register to post comments

 
Cool -
I double-checked the palp versus Duperre's illustrations with the better museum scope and it appears to be an exact match. I also took a slightly better photo and substituted it for one of my other ones, showing the "spoon-shaped lamella characteristica". Thanks again!
… Ken Schneider, 4 September, 2016 - 4:57pm login or register to post comments

Could it be a Dwarf?
The abdominal pattern reminds me of Grammonota.
… Laura P., 1 September, 2016 - 5:26pm login or register to post comments

 
Thanks -
for taking a look, Laura! The leg spines on this spider argue strongly for a linyphiine and against an erigonine, but I've certainly been wrong before... :)
… Ken Schneider, 1 September, 2016 - 7:05pm login or register to post comments

 
OK, I missed that.
Maybe Agyneta then? A lot of those to look through...

This one has a somewhat similar pattern:
… Laura P., 2 September, 2016 - 10:48am login or register to post comments

 
Check out ...
Agyneta fillmorana in "Duperre, 2013" and see if you think that's a match. It shows 3 different possible abdominal patterns, one matches yours and the palp is similar enough.
… Laura P., 2 September, 2016 - 10:56am login or register to post comments

 
I think -
you nailed it again, Laura P.! :) It looks like I've found the "large morph" with the greatly enlarged chelicerae and fangs. I'd like to study the palp under the scope with the illustrations in front of me to confirm, but I'm pretty confident you're correct. Thanks! Feel free to move the images if you'd like - I may wait until Sunday when I can get better views and photos of the palp at the museum.
… Ken Schneider, 2 September, 2016 - 3:03pm login or register to post comments

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