Thread subject: Diptera.info :: Agromyzid from Verbascum --> Amauromyza varbasci

Posted by Juergen Peters on 08-02-2008 18:40
#1
Hello!

A member of my forum, Gabi Krumm, asked me to put these photos here. These 3 mm flies hatched from a Verbascum leaf on February-07 (southern Germany, Rhine valley). I think they are Agromyzids. Can that be narrowed down? Thanks in advance!
Edited by Juergen Peters on 09-02-2008 21:22

Posted by Juergen Peters on 08-02-2008 18:41
#2
Another picture.

Posted by Paul Beuk on 08-02-2008 20:17
#3
Agromyzidae, yes.

Posted by Filex on 08-02-2008 20:27
#4
Seguy, 1934 lists the following species from Verbascum species Dizygomyza verbasci, Napomyza lateralis and Melanagromyza lappae. Nomenclature could be out-dated. Are there pictures of the mines it may produce?

Regards

Miquel

Posted by Juergen Peters on 08-02-2008 21:28
#5
Hello, Paul and Miquel!

Thanks for your replies! I will ask Gabi, if she has (or can make) photos of the mines.

Posted by Filex on 08-02-2008 21:38
#6
See the following links as well

http://www.bladmineerders.nl/plantenf/pfscrophulariaceae/verbascum.htm

http://www.leafmines.co.uk/html/Plants/verbascum.htm

http://www.ukflymines.co.uk/Keys/VERBASCUM.html

Posted by Juergen Peters on 09-02-2008 12:16
#7
Hello!

Here now some mines, larvae and pupae from these flies. Pictures taken on Dez-16, Dez-21 and Jan-16.
Edited by Juergen Peters on 09-02-2008 12:20

Posted by Filex on 09-02-2008 19:37
#8
I think this may be Amauromyza varbasci (Bouch?)

According to Seguy and the websites above:

Triangle acellaire, face ,car?ne, p?ristome et palpes noires. Antenes jaunes: troisieme article plus ou moins bruni. Calus hum?ral et d?preesion notopleurale jaunes. Soies acrosticales en quatre rangs. M?sopleure, bords sup?rieur et inf?rieur ?troitement jaunes. Pattes noires; f?murs jaunes a l'apex. Balancieres jaunes. Cuillerons ? bordure jaune et pilosit? brune. Abdomen: parties lat?rales et bord post?rieur des segments plus ou moins jauni. Long.:3 mm.

The mines are described as large, pale blotch mines ocurring in the upper surface, often with several mines occurring in the same leaf. (Other agromyzid species in Verbascum have corridor mines)

Puparium orange-yellow.

Miquel
Edited by Filex on 09-02-2008 19:46

Posted by Juergen Peters on 09-02-2008 21:22
#9
Hello, Miquel!

Miquel wrote:
I think this may be Amauromyza varbasci (Bouch?)


Many thanks for the identification and your explanations!