Posted by
AaronS on 28-11-2018 04:49
#3
Your friend's photo does key to
Tenthredomyia (=Ceriana) grahami in
Shannon[1927]. More details on that species...including a quote of the 1925 original description by Shannon (seemingly based on a single female specimen)...can be found in the comments thread under
this iNaturalist post.
Note that the ceriodine in your friend's photo is lacking the two small yellow spots placed laterally on the vertex described for
T. grahami by Shannon...though that could conceivably be a sexually dimorphic character of the female only (I think your photo shows a male...the eyes appear as if they may be very narrowly contiguous).
Edited by
AaronS on 28-11-2018 04:51