Thread subject: Diptera.info :: elm leaf enigma

Posted by mwkozlowski on 05-10-2009 17:29
#1

maybe here on diptera.info I will find some help, here is the link to Hymis forum when I describe the problem

http://www.forum....d090a0841c

thanks in advance

Edited by ChrisR on 05-10-2009 18:31

Posted by Paul Beuk on 05-10-2009 20:56
#2

Well, the Hymis forum (theoretically) should give the answer as it appears to be a Symphyta larva...

Posted by Sundew on 05-10-2009 23:34
#3

There is a very useful paper (but in German) that lists the German Symphyta taxa according to their host plants (see http://www.zalf.d...hlands.pdf). Unfortunately, the larvae of several genera feed on Ulmus, so I am afraid an ID is impossible. However, you could try to contact the first author, he is very experienced with Symphyta.
Regards, Sundew

Posted by mwkozlowski on 07-10-2009 08:31
#4

a couple of Symphyta people were helpless to date, additionally iI put it twice on Hymis with no response....thanks for the link, I will try this route.

Posted by mwkozlowski on 15-10-2009 10:06
#5

there is a hint that this is Aproceros species from Argidae, something new for Europe (message from Andreas Taeger, Sundew, thanks for direction!) I wait for news from Symphyta people that write article abou this wasp.

Posted by Paul Beuk on 15-10-2009 10:46
#6

Apparently also known from Hungary and Rumania: http://www.zalf.d....php?Nr=66 (sorry, it's in German).

Posted by mwkozlowski on 17-10-2009 22:35
#7

German is o.k. but I still await recent news from a group of hymenopterologist that push the thing

Posted by Jose Luis RC on 18-10-2009 02:17
#8


I had seen in Hymis, but I had no idea of what can be. It seems very interesting. José Luis.

Posted by mwkozlowski on 12-03-2010 09:39
#9

The wasp has been finally identified! This is Aproceros leucopoda from Argidae, a Far East sp. new to Europe for at least several years. It is an elm leaf grazer and caused already some defoliation among street elms in central Europe (Bucarest). The article in J.Europ.Entomol. is appearing soon.