Insect anatomy

thumb|Muggeseggele refers to the sex organ of a housefly. Muggeseggele, or Muckenseckel, is a humorous Alemannic German idiom used in Swabia to designate a nonspecific very small length or amount of something; it refers to a housefly's scrotum. It has been called the smallest Swabian unit of measurement and plays a similar role in northern Baden-Württemberg and Franconia.

glands in the prothorax of certain insects

part of the arthropod and insect central nervous system

thumb|Acarinarium in Xylocopa thumb|Acaridae [[Horstia under the first metasomal tergite in Xylocopa spp]] An acarinarium is a specialized anatomical structure which is evolved to facilitate the retention of mites on the body of an organism, typically a bee or a wasp. The term was introduced by Walter Karl Johann Roepke.

sclerite of various insects

thumb|Danaus chrysippus showing hair-pencil at the end of the abdomen Hair-pencils and coremata are pheromone signaling structures present in lepidopteran males. Males use hair-pencils in courtship behaviors with females. The pheromones they excrete serve as both aphrodisiacs and tranquilizers to females as well as repellents to conspecific males. Hair-pencil glands are stored inside the male until courtship begins, at which point they are forced out of the body by sclerotized levers present on the abdomen. Coremata (the singular form being corema) are very similar structures. Their exact defi