2.
The adult insect possess a pair of
antennae
It bears from the 2 nd segment of
head
Antennae function almost exclusively
in sensory perception.
Antennae are articulated with in front
between the compound eyes
5.
It is first segment or basal or
proximal segment of antennae are
articulate to the head capsule.
It is often conspicuously longer than
the other segments.
6.
It is second segment that follows scape.
Specialised sensory organ known as
Johnson’s organ situated on pedicel with
insect can hear the sound.
In honey bee, wasps pedicel forms the
pivot between scape and flagellum.
7.
It is third division formed by a single
or many segments
Flagellum is further divided into three
parts,
Ring joints: It is basal segment of
flagellum are small and ring like form.
Club: It is swollen or enlarged distal
segments of the antenna.
Funicle: segments between ring joints
and club.
8. Antennae function almost exclusively in
sensory perception.
To serve as secondary sexual characters in
male Lepidoptera and male mosquito.
To find it’s way.
To detect the danger.
To find the food.
To find the opposite sex.
To communicate with each other e.g. Ants.
9. It bear olfactory organs ( smell) e.g.
Housefly
It bears chordotonal organs (sound
hearing) e.g. Male Mosquito.
To detect humidity
To hold the opposite sex at the time
of mating.
To catch the prey e.g. Mantids.
21. Pectinate antennae have a comb-like shape.
Examples: Fire flies
(order Coleoptera).
22. Geniculate antennae are hinged or bent
like an elbow.
Order Hymenoptera:
Bumble bee, Bombus sp.
Order Hymenoptera:
Carpenter ant,
Camponotus sp.,
