Seed Bug Nymph - Melanopleurus

Moved

Moved from Lygaeinae.

… v belov, 8 June, 2020 - 4:47pm

Moved

Moved from True Bugs.

… v belov, 8 February, 2013 - 4:04pm

Plant...

is Singlewhorl Burrobrush (Ambrosia (Hymenoclea) monogyna). Thanks to Russ Kleinman and Richard Felger for ID.

… John Pearson, 3 February, 2013 - 4:43pm

Thank you

I appreciate all of the work. The description and illustration linked in Iustin Cret's entry http://www.scielo.org.mx/img/revistas/rmbiodiv/v78n2/a11f1.jpg for Anochrostomus formosus appears to match this nymph.

… Lon Brehmer and Enriqueta Flores-Guevara, 4 February, 2013 - 10:14am

Moved for Further Investigation

Moved from ID Request.

… Robert Lord Zimlich, 15 January, 2013 - 11:51am

I think it

look like a nymph of a species in genus Oncopeltus.
Probably Oncopeltus sanguineolentus. See here

… Iustin Cret, 30 December, 2012 - 9:31am

Thank you

It looks like it to me. I appreciate your help! I was not sure if it was on a Burrobrush (my plant IDs are even worse than my insect IDs), especially as this bug is reported to be fairly specific for Desert Milkweed - Asclepias subulata. After reviewing the photos of this nymph, and others of Burrobrush and Desert Milkweed, I think that this is Burrobrush. I'll post another photo of this nymph with the flowers visible for anyone who might want to verify the ID. Thank you for your help - I would have never found this otherwise!

… Lon Brehmer and Enriqueta Flores-Guevara, 30 December, 2012 - 12:13pm

I think you're right about host plant.

Burrobrush (Hymenoclea salsola) it is in Asteraceae family.
Here http://www.scielo.org.mx/img/revistas/rmbiodiv/v78n2/a11f1.jpg
Nymph, stage 5, ( at the bottom, left fig.F) of Anochrostomus formosus, it might be much closer to nymph from your photo.
If I'm not mistaken, I can not interpret the description made here (down on page)
http://www.scielo.org.mx/scielo.php?pid=S1870-34532007000200011&script=sci_arttext

Here http://www.erevistas.csic.es/ficha_articulo.php?url=oai:ojs.phoenicis.tic.unam.mx:article/5335&oai_iden=oai_revista493

write: Anochrostomus formosus is mainly associated with plants of the family Asteraceae.

This is just another hypothesis on it might be.
In fact I have seen only nymf of Oncopeltus fasciatus and I made connection with BG images for Oncopeltus sanguineolentus.
Now, I paid more atention to the host plant. So I found about Anochrostomus formosus. But I did not find a picture of nymph of Anochrostomus formosus.

… Iustin Cret, 31 December, 2012 - 2:33am

Melanopleurus

here.

Don't think this is A. formosus, that said. I think this belongs to a different genus, I can't remember right now. Maybe Melanopleurus, or something close.

… Fabien Piednoir, 8 June, 2020 - 8:51am