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STRUCTURE OF INSECT HEAD
Insect head is a Anterior most part of insect body it is hard and highly
sclerotized compact structure which consisting of six segments that are fused to form a head capsule. The insect head consists of mouthparts, compound eyes,simple eyes (ocelli) and a single pair of antennae.
The head segments can be divided in to two regions i.e. procephalon and
gnathocephalon (mouth).
Insect head formed by the fusion of six segments that can be divided in to two
regions i.e. procephalon and gnathocephalon (mouth parts).
Six segments of head are represented as.
Segment Appendages
I Pre antennary segment No appendages
II Antennary segment Antennae
III Intercalary segment No appendages
IV Mandibular segment Mandibles
V First maxillary segment Maxillae
VI Second maxillary / labial segment Labium