Insect morphology least three different positions: prognathous, opisthognathous, and hypognathous. In species with prognathous articulation, the head is positioned vertically aligned with the body, such as species of Formicidae; while in a hypognathous type, the head is aligned horizontally adjacent to the body. An opisthognathous head is positioned diagonally, such as species of Blattodea and some Coleoptera. The mouthparts vary greatly between insects of different orders, but the two main functional groups are mandibulate and haustellate. Haustellate mouthparts are used for sucking liquids and can be further classified by the presence of stylets, which include piercing-sucking, sponging, and siphoning. The stylets are
The Impertinent Insect The Impertinent Insect There are no less than five fables concerning an impertinent insect, which is taken in general to refer to the kind of interfering person who makes himself out falsely to share in the enterprise of others or to be of greater importance than he is in reality. Some of these stories are included among Aesop's Fables, while others are of later origin, and from them have been derived idioms in English and French. Credited as among Aesop's Fables, and recorded in Latin by Phaedrus, the fable is numbered 137 in the Perry Index. There are also versions