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The comments are disappointingly few. It could be very useful to have a note on similar species with the differential characters (see glossary for term) given. Also some photos show diagnostic features of higher taxa very well and this could be emphasised. The gallery will only improve if everyone helps but opinionsare bound to differ on taxonomic issues.The useful comments on non gallery pics I lift myself since new info appears all the time. Eg. this photo (not in the gallery http://diptera.in...post_28234 shows the ptilinium with the hinged frons and the pale anterior spiracle, basicosta and red jowls with black hairs of Callipora vicina a very important species often misidentified as C. vomitoria. Slainte Robert
P.S perhaps we should trial some gallery comments to see what may be achieved.