Thomisid spider - Isaloides

Vouchered?

Was a specimen ever collected? We need a voucher specimen in order to add it to the list of U.S. species.

… Joe Lapp, 7 February, 2015 - 2:45pm

I heard back from Maria Jimé

I heard back from Maria Jiménez, who first described I. yollotl. She says that this could possibly be the species -- "its distribution could be wider" but that to confirm this a genital determination is necessary.

-Kevin

… Kevin Pfeiffer, 8 June, 2009 - 10:47am

Well,

That's good enough for me... if not to create a species page, at least to create the genus page. What do you think?

… Lynette Elliott, 8 June, 2009 - 4:01pm

Isaloides -- say it with a smile :-)

Yes, definitely the genus page at least. I'm hoping that Jillian will send me (or someone) a specimen for determination, as it would be nice to establish the expanded distribution range.

-Kevin

… Kevin Pfeiffer, 8 June, 2009 - 4:24pm

8 spotted crab spider or red-spotted crab spider

What a cool crab spider! I don't remember ever seeing one like this before. I hope we can figure out what it is. Were there more spots on this spider that we can't see in this photo?

I don't know if this means anything, but there is a drawing here see #5 that shows a crab spider with eight spots. It is an Isaloides sp.

… Lynette Elliott, 3 June, 2009 - 8:39am

A newcomer

Well, the things one finds lurking in the ID Request directory!

Platnick lists three species:

species: Isaloides putus (O. P.-Cambridge, 1891) -- Mexico, Panama
species: Isaloides toussainti Banks, 1903 -- Cuba, Hispaniola
species: Isaloides yollotl Jiménez, 1992 -- Mexico

Please save this specimen if you still can.

From Cambridge's key to the genus: "Abdomen without prominences, but with eight low
convex tubercles in two longitudinal rows" (Cambridge, F. O. P.-., 1900. Arachnida - Araneida and Opiliones. In Biologia Centrali-Americana, Zoology. London, 2: 89-192.)

So, you've definitely found the right genus, Lynette. Now we just need to pin down the species (if possible).

-Kevin

… Kevin Pfeiffer, 5 June, 2009 - 3:39pm

Not I. toussanti...

Bryant (1940) writes in her description of I. toussainti "six pairs of graduated tubercles", so that could rule out one species.

-K

… Kevin Pfeiffer, 5 June, 2009 - 4:18pm

Yes IF

this spider doesn't have two more pairs hidden in this picture. :)

… Lynette Elliott, 5 June, 2009 - 4:22pm

Jiménez

Did you already look at Maria-Luisa Jimenez's 1990 article? For her new species, I. yollotl she mentions five pairs of tubercles. But her specimens were all from the Baja California Sur.

-K

… Kevin Pfeiffer, 5 June, 2009 - 4:28pm

10-spotted crab spider

Jillian went back and got another shot.

… Lynette Elliott, 6 June, 2009 - 11:06am

Update

Actually, the shot I added was from my first photo session. The spider was photographed and released. However - I went back to the same location this morning and collected a male of the species. I'll post some pictures here soon.

… Jillian H. Cowles, 6 June, 2009 - 6:56pm

Great!

I'll be watching for them.

… Lynette Elliott, 6 June, 2009 - 8:55pm

Pictures posted

The pictures of the male are posted here.

… Jillian H. Cowles, 7 June, 2009 - 1:01am

So maybe it is [i]Isaloides y

So maybe it is Isaloides yollotl?

@Lynette: BTW, how did you ever come across that drawing and then think to link it up with this photo?

-K

… Kevin Pfeiffer, 6 June, 2009 - 11:14am

a lot of tedious googling

… Lynette Elliott, 6 June, 2009 - 11:18am