Editing Head (section)

==== Insects ====
[[File:Nomada krugii, F, face, Dominican Republic, La Ve jarabacoa 2012-12-05-14.31.04 ZS PMax (8258588812).jpg|thumbnail|Head of a [[Nomada]]-species [[bee]]]]

A typical insect head is composed of eyes, [[antenna (biology)|antennae]], and components of mouth. As these components differ substantially from insect to insect, they form important identification links. Eyes in the head found, in several types of insects, are in the form of a pair of [[Compound eye|compound eyes]] with multiple faces. In many other types of insects, the compound eyes are seen in a "single facet or group of single facets". In some cases, the eyes may be seen as marks on the [[dorsum (anatomy)|dorsal]] or located near or toward the head, two or three [[ocelli]] (single faceted organs).<ref name="McCafferty1983">{{cite book|first=W. Patrick|last=McCafferty|title=Aquatic Entomology: The Fishermen's and Ecologists' Illustrated Guide to Insects and Their Relatives|url=https://books.google.com/books?id=wiTq7x-fI_0C&pg=PA20|date=1 January 1983|publisher=Jones & Bartlett Learning|isbn=978-0-86720-017-1|pages=20–}}</ref>

Antennae on the insect's head is found in the form of segmented attachments, in pairs, that are usually located between the eyes. These are in varying shapes and sizes, in the form of filaments or in different enlarged or clubbed form.<ref name="McCafferty1983"/>

Insects have mouth parts in various shapes depending on their feeding habits. [[Labrum (arthropod mouthpart)|Labrum]] is the "upper lip" which is in the front area of the head and is the most exterior part.  A pair of mandibles is found on the backside of the labrum flanking the side of the mouth, succeeded by a pair of [[Maxilla (arthropod mouthpart)|maxillae]] each of which is known as [[maxilliary palp]]. At the back side of the mouth is the [[labium (arthropod mouthpart)|labium]] or lower lip. There is also an extra mouth part in some insects which is termed as [[hypopharynx]] which is usually located between the [[maxillac]].<ref name="McCafferty1983"/>

{{anchor|Vertebrate}}
{{anchor|New head hypothesis}}