Apparently, it's called meconium and it's basically just poop (this word is also used to refer to a baby's first poop after being born). they spray it out soon after emerging as an adult. the color ranges from bright orangey red to pale beige.The abdomen sure does. But I can't make out anything about the wings. Do you know anything about them expelling piles of white goo? It also makes sense they would be in a garden since their larva eat tomato plants.