I nsect - PowerPoint Presentation

I nsect
I nsect

I nsect - Description


A ntennae   The antennae are a pair of sense organs located near the front of an insects head capsule Although commonly called feelers the antennae are much more than just tactile receptors They are usually covered with olfactory receptors that can detect ID: 459118 Download Presentation

Tags

segments antennae appearance beetles antennae segments beetles appearance antenna side detect flies basic tip air giving longer joints number

Embed / Share - I nsect


Presentation on theme: "I nsect"— Presentation transcript


Slide1

I

nsect

A

ntennaeSlide2

 

The

antennae are a pair of sense organs located near the front of an insect's head capsule. Although commonly called "feelers", the antennae are much more than just tactile receptors. They are usually covered with olfactory receptors that can detect

ordor

molecules in the air (the sense of smell).

Many

insects also use their antennae as humidity sensors, to detect changes in the concentration of water

vapour.

Mosquitoes

detect sounds with their antennae, and many flies use theirs to gauge air speed while they are in flight.

Slide3

Although antennae vary widely in shape and function, all of them can be divided into three basic parts

:

scape

-- the basal segment that articulates with the head

capsule

pedicel -- the second antennal

segment.

flagellum -- all the remaining "segments" (individually called

flagellomeres

).Slide4

Types of antennaeSlide5

Filiform

antennae:

This

is the most basic form of insect antennae.

This basic structure is modified in a wide variety of ways.

This means

that a number of different types may be recognised. (Orthroptera) Slide6

Setaceous

- There are many joints. The antenna tapers gradually from the base to the tip e.g.

Cockroaches

,

Stoneflies

.Slide7

Moniliform

- The round segments make the antenna look like a string of beads e.g.

Beetles

.Slide8

Serrate

- the segments are angled on one side giving the appearance of a saw edge e.g.

Beetles

.Slide9

Pectinate

- The segments are longer on one side. This gives the appearance of a comb e.g.

Sawflies

(related to wasps) and

Beetles

.Slide10

Bipectinate

: The segments are longer on two

.

sideSlide11

Clavate

- the segments become wider towards the tip of the antenna. This may be gradual along its length, or a sudden increase and therefore mainly affecting the last few joints and giving the appearance of a club e.g.

Butterflies

and

Beetles

.Slide12

Lamellate

- the segments towards the end are flattened and plate-like. This gives the appearance of a fan e.g.

BeetlesSlide13

Plumose and

Piplumose

- the segments each have a number of fine thread-like branches. This gives the appearance of a feather e.g.

Flies

.

Slide14

Capitates:

Capitate

antennae are abruptly clubbed at the end. Ex. Butterflies.Slide15

Aristate

:

pouch-like with lateral bristle. Ex. House fliesSlide16

Geniculate

:

there

is an abrupt bend or elbow part of the way along the antenna e.g.

Ants

and

BeetleSlide17

Stylate

: having a pointed process, a

style

.

Aristate

is similar, but the process is off-centerSlide18
Slide19

Shom More....
kittie-lecroy
By: kittie-lecroy
Views: 41
Type: Public

Download Section

Please download the presentation from below link :


Download Presentation - The PPT/PDF document "I nsect" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.

Try DocSlides online tool for compressing your PDF Files Try Now