Spider ID

[dman13760]

Ran across this spider on a trail in northern Delaware, USA. Probably about an inch long....anyone have any idea what it could be?

 

[Ultum4Spiderz]

Ran across this spider on a trail in northern Delaware, USA. Probably about an inch long....anyone have any idea what it could be? View attachment 447258

Looks like a trapdoor or funnel web spider , a Myglomorph of some sort . I’m not familiar with the local species hehe .. so I can’t say much more.

 

[AphonopelmaTX]

This is a mygale of the family Atypidae- which are easily characterized by those very long chelicerae- most likely belonging to the genus Sphodros based on its location in Delaware. There are seven species of Sphodros in the eastern half of America up to Ontario, Canada, but an identification to species isn't possible from a picture. The other genus of the family Atypidae, Atypus, is found in PA and only one species is known, Atypus snetsingeri. The common name for these types of spider is "purse web spiders" which comes from the long tubular webs that they construct underneath the ground and extend vertically up the side of a tree or horizontally along the surface of the ground.

 

[Biollantefan54]

This is a mygale of the family Atypidae- which are easily characterized by those very long chelicerae- most likely belonging to the genus Sphodros based on its location in Delaware. There are seven species of Sphodros in the eastern half of America up to Ontario, Canada, but an identification to species isn't possible from a picture. The other genus of the family Atypidae, Atypus, is found in PA and only one species is known, Atypus snetsingeri. The common name for these types of spider is "purse web spiders" which comes from the long tubular webs that they construct underneath the ground and extend vertically up the side of a tree or horizontally along the surface of the ground.

It seems A. snetsingeri is an introduced sp. “Atypus snetsingeri synonymized with Atypus karschi by "Řezáč et al., 2022".
Based on the range and if this a mature male, it’s most likely Sphodros niger

 

[dman13760]

thanks very much all!

 

[Ultum4Spiderz]

This is a mygale of the family Atypidae- which are easily characterized by those very long chelicerae- most likely belonging to the genus Sphodros based on its location in Delaware. There are seven species of Sphodros in the eastern half of America up to Ontario, Canada, but an identification to species isn't possible from a picture. The other genus of the family Atypidae, Atypus, is found in PA and only one species is known, Atypus snetsingeri. The common name for these types of spider is "purse web spiders" which comes from the long tubular webs that they construct underneath the ground and extend vertically up the side of a tree or horizontally along the surface of the ground.

Do they burrow deep or something how do they survive the cold winters so far north ? I had no idea they went so north !
amazing information can’t believe the size of those fangs!

 

[AphonopelmaTX]

It seems A. snetsingeri is an introduced sp. “Atypus snetsingeri synonymized with Atypus karschi by "Řezáč et al., 2022".
Based on the range and if this a mature male, it’s most likely Sphodros niger

Took me a while, but this checks out.

For these mygale ID threads I'm using the book "Spiders of North America, An Identification Manual 2nd Edition" published by the American Arachnological Society. I don't know if you have this book, but it was published in 2017 and provides dichotomous keys up to genus. I figure that's good enough for these "ID by picture" threads since the pictures hardly ever have enough info to make a reliable identification to any taxonomic rank, and the information asked for is usually to satisfy a curiosity as opposed to something actionable like a regional survey.

 

[Biollantefan54]

Took me a while, but this checks out.

For these mygale ID threads I'm using the book "Spiders of North America, An Identification Manual 2nd Edition" published by the American Arachnological Society. I don't know if you have this book, but it was published in 2017 and provides dichotomous keys up to genus. I figure that's good enough for these "ID by picture" threads since the pictures hardly ever have enough info to make a reliable identification to any taxonomic rank, and the information asked for is usually to satisfy a curiosity as opposed to something actionable like a regional survey.

I do not have that book, that sounds very useful though! The downside is taxonomy is constantly changing! Thanks for the info.

 

[IntermittentSygnal]

ca, An Identification Manual 2nd Edition" published by the American Arachnological Society. I don't know if you have this book, but it was published in 2017 and provides dichotomous keys up to genus.

I have the 2004/2005 edition of this book on a recommendation by the entomologist I was taking a class from on the spiders of my local area. I didn’t know they came out with a newer version, but the old one is fabulous.