Hi Graham,
Thanks for sorting out the Trigonaspis megaptera v. N. quercusbaccarum on the
oak bark. It would be interesting to rear out the gall causers just to see
what they look like.

Re: Andricus grossulariae sexual galls found by Jerry Clough at Nottingham in
May: Jerry sent me galls on a catkin to rear out and they dried up and
shrivelled, so I wasn't optimistic about the outcome. However in the last few
days, a wasp has emerged from one of the galls. It is a cynipid not chalcid
[wing venation]; with black head, thorax & abdomen, and with yellow legs and
antennae [14 antennal segments with number 3 curved] = male. I assume that it
is an Andricus grossulariae sexual male. Jerry has some wasps emerging from his
galls, yet to be dealt with. If they emerge at all, from the smaller galls on
the rest of my catkin, will they be males - or could it be a mix of males &
females?
See my pics in "Maggie's Pics" folder.
'bye for now,
Maggie

--- In british_galls@..., Graham Stone <graham.stone@...> wrote:
>
> Dear All,
> The gall images on a tree trunk posted by Janet have been identified
> as Trigonaspis megaptera by Jose-Luis Nieves Aldrey, Juli Pujade,
> George melika and Gyuri Csoka - which is about as definitive as one
> can get. Defining features are not easy, but the gall location on the
> tree trunk and the irregular slightly conical shape of the galls both
> contribute. In george's case, he can just look at the pupa and know
> it is a Trigonaspis - the mark of a true jedi.
>
> Graham Stone
> Reader in Evolutionary Ecology
>
> email: graham.stone@...
> tel: 0131 6507194
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> Institute of Evolutionary Biology
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