Leptynoma sericea (Diptera: Vermileonidae) foraging for nectar on Pseudoselago spuria (Scrophulariaceae). The photographs show how it uses its long legs to get up high enough to insert its long proboscis into the flower; it then lowers its front and middle legs to get the proboscis down the corolla tube. It works its way over the inflorescence repeating this action with the flowers it selects.