Some costs have components that are fixed and some that are variable. One example is wages for your sales force. A portion of the wage for a salesperson may be a fixed salary and the rest may be sales commission.
Hornets are the largest eusocial wasps, reaching up to 45 millimetres (1.8 inches) in length. Yellowjackets are black-and-yellow wasps of the genus Vespula or Dolichovespula (some can be black-and-white, the most notable of these being the bald-faced hornet, Dolichovespula maculata).
The Pennsylvania Firefly is 3/8 to 5/8 inches long. The body is long and flattened. The head is dull yellowish in color with threadlike antennae. Eyes are large and widely separated. The pronotum is a dull yellowish color with a black spot inside a reddish ring.