"Thaumatomyia notata male. Note the eversible vesicles (""yellow balls"") on the abdomen. These are thought to be pheromone producing glands that may play a role in the aggregation behavior of this species. Els Poblets, Alicante, Spain."
"Thaumatomyia notata male. Note the eversible vesicles (""yellow balls"") on the abdomen. These are thought to be pheromone producing glands that may play a role in the aggregation behavior of this species. Els Poblets, Alicante, Spain."
"Thaumatomyia notata male. Note the eversible vesicles (""yellow balls"") on the abdomen. These are thought to be pheromone producing glands that may play a role in the aggregation behavior of this species. Els Poblets, Alicante, Spain."