ID please

[Ricky ortiz]

found this lil guy at work he's got a nice set of fangs on him have no idea what he is and really dont want to mess with just took him home for some pics then releasing him thanks in advance. oh located in central california in the valley

 

[What]

Dysdera crocata

 

[Erigo]

Dysdera crocata

It is wrong named this spider Dysdera crocata because:

1) there are many species about Dysdera sp..
For distinguish between Dysdera crocata and Dysdera erythrina the procedure is to observ the number of spines on the femur on the 4 pair of legs (D. crocata have 1-3 spines whereas D. erythrina no have dorsal spines on femur IV).


2) genus dysdera can be confused with Harpactea sp..
for example Harpactea rubicunda have smaller chelicerae.
Moreover Harpactea rubicunda have 8-10 dorsals spines.

This genus are at first sight equals.

So, we must stop to family, Dysderidae.

 

[Pulk]

according to wikipedia, at least, D. crocata is the only Dysdera or Harpactea species that occurs in CA.

 

[Bastian Drolshagen]

besides that fact that Pulk already mentioned it´s hard to confuse Dysdera sp. and Harpactea sp.

Even D. erythrina and D. crocata are pretty easy to distinguish from each other

So I second What´s opinion and say D. crocata

 

[What]

It is wrong named this spider Dysdera crocata because:

You realize that I live within ~50miles of the OP and I catch these all the time right?

 

[cacoseraph]

i think you live more like 250 miles from him... but the point remains =P

 

[Erigo]

You realize that I live within ~50miles of the OP and I catch these all the time right?

Sorry, i did't want be arrogant..

But the process for say species and genus between Dysdera and Harpactea is to look the spines on femur of IV pair of legs.
This is a process mentionated in "spiders of britain and northern europe" Michael J. Roberts.
More over there are many species of Dysdera sp. I don't Know what do you live, but in Italy there are this species:

Dysdera Latreille, 1804

Dysdera ancora Grasshof, 1959 (Si, Sa) [E]
Dysdera andreinii di Caporiacco, 1928 (S) [E]
Dysdera apenninica Alicata, 1964 (S) [E]
Dysdera bottazziae di Caporiacco, 1953 (S) [E]
Dysdera crocota C.L. Koch, 1839 (N, S, Si, Sa)
Dysdera erythrina (Walckenaer, 1802) (N, S, Si)
Dysdera flagellata Grasshof, 1959 (Si) [E]
Dysdera flagellifera di Caporiacco, 1948 (S) [E]
Dysdera fustigans Alicata, 1966 (S) [E]
Dysdera granulata Kulczynski, 1897 (N)
Dysdera lagrecai Alicata, 1964 (Si) [E]
Dysdera monterossoi Alicata, 1964 (S) [E]
Dysdera nicaeensis Thorell, 1873 (N)
Dysdera ninnii Canestrini, 1868 (N, S)
Dysdera nubila Simon, 1882 (S)
Dysdera osellai Alicata, 1973 (Si) [E]
Dysdera paganettii Deeleman-Reinhold, 1988 (S) [E]
Dysdera pavani di Caporiacco, 1941 (N) [E]
Dysdera pominii di Caporiacco, 1948 (S) [E]
Dysdera sibyllinica Kritscher, 1956 (S) [E]
Dysdera silana Alicata, 1966 (S) [E]
Dysdera subsquarrosa Simon, 1914 (N)
Dysdera transadriatica Deeleman-Reinhlod, 1988 (S) [E]
Dysdera ventricosa Grasshof, 1959 (Si, Sa) [E]
Dysdera westringi Pickard-Cambridge, 1872 (N, S)

Harpactea Bristowe, 1939

Harpactea aeoliensis Alicata, 1973 (Si) [E]
Harpactea alicatai Brignoli, 1979 (Sa) [E]
Harpactea arguta (Simon, 1907) (N, S)
Harpactea carusoi Alicata, 1974 (Si) [E]
Harpactea corticalis (Simon, 1882) (N, S)
Harpactea gridellii (di Caporiacco, 1951) (S, Si) [E]
Harpactea grisea (Canestrini, 1868) (N)
Harpactea hombergi (Scopoli, 1763) (N, S)
Harpactea nuragica Alicata, 1966 (Sa) [E]
Harpactea oglosana Gasparo, 1992 (S) [E]
Harpactea piligera (Thorell, 1875) (S) [E]
Harpactea sabina Brignoli, 1979 (S) [E]
Harpactea sardoa Alicata, 1966 (Sa) [E]
Harpactea sicula Alicata, 1966 (Si) [E]
Harpactea strandi (di Caporiacco, 1939) (S) [E]
Harpactea thaleri Alicata, 1966 (N)
Harpactea zannonensis Alicata, 1966 (S) [E]


Moreover, there are many genus whithout a photo for recognize it.

i don't know that Dysdera crocata is the unic species in your country.. sorry

 

[What]

i think you live more like 250 miles from him... but the point remains =P

Stockton is 250 miles? Eh, I must have been thinking of Stanton...

 

[cacoseraph]

platnick shows no dysdera specifically endemic to USA, but lists crocata as cosmopolitan

 

[gunslinger]

From what I understand, D. crocata is the only species in the genus that has been introduced into the US and like caco said, none of the genus is actually native to the US.

 

[cacoseraph]

which means technically i should be killing them when i find them

or catching them. i think i will catch them.

 

[bluefrogtat2]

hmmm

look alot like the woodlouse spiders i find in my basement.big fanged buggers
andy

 

[Widowman10]

BEAUTIFUL pics btw... i looove this species!