Spiracle (lower center; opening that lets oxygen into the tracheal system) and haltere (upper right; orange knob-shaped organ that helps balance the insect in flight). Dark brown horizontal structures at top are the wings.
DipteraTabanidaeTabanus nigrovittatusgreenheadhorseflyspiraclehalterethoraxSmugMug collection
I'm awestruck. I'm glad there are photographers such as yourself with the interest and expertise to reveal how amazing life is at every level of detail.
Can you please contact me about this photo. I would like to use it to illustrate an article in the Dutch popular scientific monthly KIJK.