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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Sheetweb and Dwarf Spiders (Linyphiidae) » Dwarf Spiders (Erigoninae) » Erigone » Erigone dentosa
Photo#414025
Erigone sp. - Erigone dentosa - male
Copyright © 2010 Ken Schneider

Erigone sp. - Erigone dentosa - Male
Redwood City, San Mateo County, California, USA
June 20, 2010
Size: 2 mm
I beat this fascinating spider from an ornamental plant near my apartment complex (immature palm?) - a very cool adult male erigoninid with spines on the edge of the carapace and numerous modification to the pedipalps, including multiple spines and a large patellar apophysis that appears to make this one of the Erigone sp. I don't have the relevant literature (Paquin and Dupierre?) to get to species, I don't think...

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Erigone sp. - Erigone dentosa - male Erigone sp. - Erigone dentosa - male Erigone sp. - Erigone dentosa - male Erigone sp. - Erigone dentosa - male Erigone sp. - Erigone dentosa - male
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Contributed by Ken Schneider on 20 June, 2010 - 1:27pm
Last updated 20 June, 2010 - 10:25pm

Moved
Moved from Spiders. Thanks Rod and Lynette!
… Ken Schneider, 20 June, 2010 - 10:25pm login or register to post comments

 
Drawing here...
You got lucky -- one of the easier to pick out species:
Link to Crosby, C. R. & S. C. Bishop, 1928a. Revision of the spider genera Erigone, Eperigone and Catabrithorax (Erigoneae). New York St. Mus. Bull. 278: 1-73
… Kevin Pfeiffer, 21 June, 2010 - 2:20am login or register to post comments

Erigone dentosa
ID from Rod Crawford.
… Lynette Elliott, 20 June, 2010 - 10:06pm login or register to post comments

Alert, alert...
> large sword-like ventral patellar apophysis
> spines on the edge of the carapace

'Ding.. ding.. ding.. ding..'

What's that red flashing light up on the wall? Hey, it's the "Erigone-Alarm"... :-)

Take a look at the literature to see what views of what you will need. There are quite a few species. I don't think that it's one of the usual holarctic species, but not really sure. If not, you'll have to figure out which literature you'll need. :-/

[Oops, if I had read more carefully, I would have seen that you'd already picked this up. Oh, well. Sorry I can't be of more help. You'll need more detail from the pedipalp, and a lateral view.]

-K
… Kevin Pfeiffer, 20 June, 2010 - 3:16pm login or register to post comments

 
Added -
a second lateral view, this one a little better with some palp details. At the limit of my scope setup - I need another light and some higher mag oculars, I think. :(
… Ken Schneider, 20 June, 2010 - 6:42pm login or register to post comments

 
I'll email
Rod for his opinion too.
… Lynette Elliott, 20 June, 2010 - 6:43pm login or register to post comments

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