Calligrapha sp. - Calligrapha philadelphica

Moved

… Denis A. Doucet, 23 January, 2009 - 11:29am

Moved

… margarethe brummermann, 22 January, 2009 - 12:09pm

re-check now suggests C vicina

Hi Margarethe,

I have just sent this image to Chris Majka (who posted the Calligrapha key) and will soon be giving further input, but the feeling is now that this is likely C vicina, another dogwood species. Its dorsal habitus matches the images on Bug Guide almost perfectly too and is known from the region. I will move the image if that is confirmed, following the instructions you gave me. Thanks again!

… Denis A. Doucet, 23 January, 2009 - 8:42am

Thanks for

working on it. I leave your other ones to you to move. If you need a new guide page, go under forum and request it.

… margarethe brummermann, 23 January, 2009 - 9:12am

C philadelphica

Chris Majka (the local authority) feels strongly that this is C philadelphica. I haved moved it there...Phew!

… Denis A. Doucet, 23 January, 2009 - 11:33am

If you give me some background info

for the ID, I can make a page for the new species.

… margarethe brummermann, 20 January, 2009 - 11:20pm

ID done using simplified key

I based my ID on 1)a simplified key provided by Chris Majka on his website (www.chebucto.ns.ca/Environment/NHR/Calligrapha.html) 2) my specimens has the same chevron pattern at base of elytra as his specimen and 3) that there were alder all around at the site

… Denis A. Doucet, 21 January, 2009 - 10:19am

Thank you, Denis

I'm making the page

… margarethe brummermann, 21 January, 2009 - 10:54am

Error on my part! Please retract...

Margarethe,

After your excellent questions yesterday, I went back to my original photos and had a much closer look. I also read many of the discussions about the difficulty of IDing the species (e.g. discussion with Chris Adam about ignotata). The patterns on the elytra also seem to be highly variable. It now appears that although there was plenty of alder around and many beetles too, this particular specimen looks like it was on a dogwood, although that is rather fuzzy too. I cannot see the elytral epipleura clearly on any of the photos, so this one may have to go in the Calligrapha sp. I apologize for the work you did and the oversight on my part. This is clearly a group that is not as straight forward as I first thought... Any new photos I submit from now on will be better researched!

… Denis A. Doucet, 22 January, 2009 - 7:12am

Hi Denis

thanks for looking into it some more. You can move your own pics. just tag, go to your target, go to 'images' and 'move tagged'

… margarethe brummermann, 22 January, 2009 - 12:08pm