Small Coccinellidae on Oak - Psyllobora? - Psyllobora plagiata

female and male

The one on the left, with a darker head, is female; the one on the right, with his white frons, is a male.

This is a great photo of the species, and I'm really happy to have it in the Guide! I've been hoping someone would find this beetle for us. Just one more Psyllobora sp. in the US to go.

… Abigail Parker, 5 May, 2010 - 10:00am

That's nice to know

now I'm glad I posted both of them together even though they were no mating pair as far as I know - but they could have been, they turned up in a beating sheet

… margarethe brummermann, 5 May, 2010 - 11:26am

Moved

Moved from ID Request.

… Dennis Haines, 14 April, 2010 - 3:14pm

Olla v-nigrum

I am thinking. Bizarre (but neat) color form. I never saw anything like this in AZ.

… Blaine Mathison, 14 April, 2010 - 12:42pm

If you'd see how small they are...

I can't believe it's Olla. Those are giants by comparison. Eric Eaton saw them too, Olla didn't occur to either of us despite the gray color. They are just so different in 'Gestalt', size, texture.
Olla is much smoother and shinier

… margarethe brummermann, 14 April, 2010 - 12:46pm

I'll take your word for it...

Gestalt gave me hiesitation too. I will try and run them through Gordon (1985) later if I can. Could be a new Psyllobora for BugGuide!

… Blaine Mathison, 14 April, 2010 - 12:52pm

Psyllobora

was the best match I could find. The pattern is very similar to P. vigintimaculata (with each spot considerably reduced):

… Ken Wolgemuth, 14 April, 2010 - 1:09pm

Psyllobora plagiata Schaeffer, 1908

The species is recorded from the Huachucha and Santa Catalina Mtns, of Arizona. It is told from P. vigintimaculata by the reduced maculations.

… Dennis Haines, 14 April, 2010 - 3:12pm

confirmed, Gordon (1985)

Good job, everyone. And another new species for BG courtesy of Margarethe!

… Blaine Mathison, 14 April, 2010 - 9:31pm

Here's still a Psyllobora

from north-east NM that was never Ided. any ideas? and if so, does it occur in AZ?

… margarethe brummermann, 15 April, 2010 - 11:33am

Thanks, Dennis

Great to know

… margarethe brummermann, 14 April, 2010 - 1:35pm