Crickets have particularly long cerci while other insects have cerci that are too small to be noticeable. However, it is not always obvious that small cerci are without function; they are rich in sensory cells and may be of importance in guiding copulation and oviposition.

Using an air-current stimulus device capable of generating sequences of air jets along a single cercus, we demonstrate that the cerci operate as delay lines and support neural computations in many of the projecting cercal interneurons (INs) that yield substantial differential sensitivity to the direction and velocity of these more complex stimuli.

The cerci are the two antenna-like structures, covered with fine hairs, extending from the rear of the abdomen. This is a female: the ovipositor can be distinguished between the two cerci.

The abdominal cerci of crickets are clothed with approximately 3400 hair and campaniform sensilla. Their axons form functional connexions in the terminal abdominal ganglion with a group of ten gian...

2012年10月4日 · Crickets and other orthopteran insects sense air currents with a pair of abdominal appendages resembling antennae, called cerci. Each cercus in the common house cricket Acheta domesticus is covered with between 500 to 750 filiform mechanosensory hairs.

The anatomical and physiological characteristics of filiform hairs, receptor elements on the cerci of the cricketAcheta domesticus, were investigated, with special attention to possible physiological differences between anatomically defined subclasses.

2011年11月21日 · Crickets and other orthopteran insects sense air currents with a pair of abdominal appendages resembling antennae, called cerci. Each cercus in the common house cricket Acheta domesticus is approximately 1 cm long, and is covered with 500 to 750 filiform mechanosensory hairs.

In insects, the cercal system consists of a bilateral pair of tapered spike-shaped structures (cerci) extending posteriorly from the last abdominal segment. Each cercus has several hundred mechanoreceptive hairs, organized into regular rows and columns, and each hair is mechanically coupled to a single afferent neuron.

2006年8月7日 · Filiform hairs located on the cerci of crickets are among the most sensitive sensors in the animal world and enable crickets to sense the faintest air movements generated by approaching predators. While the neurophysiological and biomechanical aspects of this sensory system have been studied independently for several decades, their integration ...

2022年1月1日 · The receptor organ for this modality is a pair of antenna-like appendages called cerci at the rear of the abdomen, covered with mechanosensory hairs like the bristles on a bottlebrush (Fig. 1). Air currents in the animal’s immediate environment move these hairs and, thereby, activate the receptor neurons at the base of the hairs.