Posted by JC_Bartolucci on 31-05-2025 22:41
#8
Reply from Martin Ebejer : "
You present an interesting problem. Colouration is a most unreliable criterion to differentiate these three species. With Capnoptera you need a very clear image of the frons to show the proportions and angles of the frontal triangle as well as the midline groove. You also need images to show the length and density of the setulae on the head and thorax , including the scutellum. Unfortunately, your photo shows none of these and so, as you guessed, it is impossible to give a species name with any certainty. I brought my own specimens out to see if I could see anything else that might help. But no luck."