Antennina

Antennina is a small, often delicate structure found on the heads of many insects, particularly in the orders Diptera (flies) and Hymenoptera (bees, wasps, and ants). It is a sensory organ that plays a crucial role in the insect's ability to detect and respond to environmental stimuli. The antennina is typically composed of a series of segments, each containing sensory receptors that can detect various types of information, such as air currents, vibrations, and chemical signals.

In flies, the antennina is often referred to as the arista. It is a single, unsegmented structure that extends from the base of the antenna and is used for detecting air currents and vibrations. In bees and wasps, the antennina is a small, club-like structure that extends from the base of the antenna and is used for detecting chemical signals, such as pheromones.

In ants, the antennina is a small, segmented structure that extends from the base of the antenna and is used for detecting chemical signals and vibrations. It is often used in conjunction with the antenna to locate food sources and communicate with other members of the colony.

The antennina is an essential sensory organ for many insects, and its structure and function can vary significantly between different species. Despite these differences, the antennina plays a critical role in the insect's ability to navigate its environment and respond to changes in its surroundings.