Well this could be an advantage to the insects because the insects can conceal with the color of the sticks. This trait could have evolved the through natural selection because its a chance of staying alive.
An exclamation used as a greeting, to call attention, as an exclamation of surprise, or to encourage one. This variant of Halloo and Holloo has become the dominant form. In the United States, it is the most common greeting used in answering a telephone.
Definition of greet. transitive verb. 1 : to address with expression of kind wishes upon meeting or arrival greeted guests at the door. 2a : to meet or react to in a specified manner greeted him with boosb : to occur as a response to apathy greeted the plan. 3 : to appear to the perception of a surprising sight greeted her eyes.