Unknown Spider (Ariadna Species?) - BugGuide.Net

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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Synspermiata » Tube Web Spiders (Segestriidae)

Photo#338118

Copyright © 2009 Paul Bollinger

Unknown Spider (Ariadna Species?) -

Homestead, Miami-Dade County, Florida, USA
September 27, 2009
Size: BL3/4" total length 1.25"

Caught in Southern Florida..Six specimens were collected, All female..Pictured specimen is gravid but the opisthosoma is elongated, in the specimens not containing ova. These specimens were collected under various items of debris..They construct a "Tube-Like" structure that is very "webby" and approximately 2-3" long..These spiders are extremely fast even more so than the Ctenus captiosus I've expirenced..Please Help!

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Contributed by Paul Bollinger on 28 September, 2009 - 5:53pm
Last updated 14 February, 2010 - 12:50pm

Teminius insularis

The "herringbone" pattern on the abdomen of this female reminds me of T. insularis which have been observed in South Florida.

… Tim1009, 25 May, 2021 - 1:23am

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Moved

Moved from Spiders.

… Lynette Elliott, 14 February, 2010 - 12:50pm

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Segestriidae?

I can't see the eyes well and the image is small, so not much detail. Both suggestions are in the same family, maybe we should move it there?

… Lynette Elliott, 8 January, 2010 - 7:53pm

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Moved

Moved from ID Request.

… v belov, 11 October, 2009 - 6:48pm

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Segestria Sp?

After some additional investigation, I think it belongs to the Genera Segestria...any takers?

… Paul Bollinger, 28 September, 2009 - 9:58pm

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No.

I'm leaning toward one of the genera of smaller wolf spiders, but I can't be positive.

… Eric R. Eaton, 29 September, 2009 - 10:14am

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Not Lycosidae:)

I'm only counting 6 eyes not 8 which are indicative of lycosids...The picture doesn't show it well but the eyes tell me Segestriidae and the only species that exists in Extreme Southern Florida is Ariadna arthuri; however I cannot find any keys or pictures for this species..That coupled with the "tube-like" living quarters....Also they do NOT carry the egg sac..it is a "Pancake-like" mass that remains in the tube until the young hatch and disperse....they do not piggy-back on the female like lycosids...Anyway does anyone have a key for A. arthuri???

Ariadna arthuri Petrunkevitch, 1926 SEGESTRIIDAE Ariadna arthuri Petrunkevitch, 1926
Thanks
PB

… Paul Bollinger, 29 September, 2009 - 11:56am

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