Larinioides cornutus
(Furrow Orb-weaver)

Picture ID 56973

Picture of Larinioides cornutus (Furrow Orb-weaver) - Dorsal

Comments & ID Thoughts

I have no idea what this spider is but it gives me the spooks. Last summer it made a home right outside my door on my apartment building. Only comes out at night. I do not remember it ever making a circular or “normal” web. Now, yesterday was the first warm day of the year and they were all over the front of my apartment door and overhang. I’m spooked to get inside, and I don’t know if these spiders are dangerous. They tend to drop down when I approach so I feel they are territorial. All seem to be bigger than a quarter, some are the size of a half dollar. Plz help

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TangledWeb

Hi, please don’t worry. Your spider looks like a Furrow Orbweaver, Larinioides cornutus. The one that didn’t make a circular web might have been male. They spend their life mainly searching for females, they make webs that are like little bachelor cots. Young females make smaller versions of the circle web. I’m pretty sure you have a lot of females because nocturnal flying insects are attracted to artificial lighting. The entry may have exterior lights and light shining through windows. Orbweavers prey primarily on large flying insects – so this is an ideal scenario for them. They like using human… Read more »

BugmanDan

Hi, for the numbers, this is likely a hatching from last seasons parent. The spiderlings won’t infest anything. Usually, these will seek a high place and balloon away for a place of their own. Unless these spiders can find food, they won’t hang around long or become cannibalistic killing each other off. You may have a couple or few become resident, but these spiders are very harmless and of no concern, they are very unlikely to stray indoors, save for a wayward male looking for a mate. I have relocated similar spiders, persistently webbing across walkway to the door. Side… Read more »

TangledWeb

I agree, relocate them if you want to. They aren’t a building hazard at all. The landlord, if like most that I’ve met, would probably kill them all with a pressure wash or toxic chemicals. Better to keep him uninformed.

Additional Pictures

Picture of Larinioides cornutus (Furrow Orb-weaver) - Male - Dorsal,Penultimate,Webs Enlarge Picture
Picture of Larinioides cornutus (Furrow Orb-weaver) - Dorsal Enlarge Picture
Picture of Larinioides cornutus (Furrow Orb-weaver) - Male - Dorsal Enlarge Picture
Picture of Larinioides cornutus (Furrow Orb-weaver) - Dorsal,Webs Enlarge Picture