iris fly?
Richard (Wed, 10 Jun 2009 10:56:10 PDT)

Leaf hoppers have an incomplete metamorphosis. No larval stage.

-----Original Message-----
From: pbs-bounces@lists.ibiblio.org
[mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Adam Fikso
Sent: Wednesday, June 10, 2009 10:28 AM
To: Pacific Bulb Society
Subject: Re: [pbs] iris fly?

This does not look like typical iris borer damage which is
usually confined
to the edges of leaves early in the year--and the grubs are much

bigger--about 4-5 cm-- which go down into the rhizome and hollow
it out, at
which point the leaves turn watery looking and rot from the
inside of the
stem outwards. Also, Iris borer in the U.S is much earlier,
about April-May
in the Chicago area. If I had to suspect a pest from the U.S.
I'd think one
of the leaf hoppers which tend to do more surface damage to
softer parts of
the leaves between the veins.

Not iris borer from your photos , but you've got me hooked
enough to check
some other references