easy to understand

1. Classification of Insect Wing
PRESENTED BY ABDUL QADEER
KHAN, Ahmar Zia , Abdul Qadeer
KHan
SEMESTER 3rd
Subject: Introductory Entomology
DEPARTMENT OF AGRICULTURAL SCIENCES,
THE UNIVERSITY OF HARIPUR

2. Content
• Introduction
• Classification
• Structure of insect wing
• Insect wing area and
region
• Modification of insect
wing
• Function of insect wing

3. Introduction
Insect wings are adult outgrowths
of the insect exoskeleton that
enable insects to fly.
They are found on the second and
third thoracic
the mesothorax and metathorax
The two pairs are often referred to
as the forewings and hindwings
The wings are strengthened by a
number of longitudinal veins

4. Apterygota:
The name Apterygota is Greek in origin, and
means "without wings." This subclass contains
primitive hexapods that do not fly, and were
wingless throughout their evolutionary
history.
Orders in the Subclass Apterygota:
Diplura - diplurans
Protura - proturans
Collembola - springtails
Thysanura - silverfish and firebrats
Microcoryphia - jumping bristletails
Classification :

5. Classification :
Pterygota:
The subclass Pterygota includes
most of the world’s insect species.
The name comes from the
Greek pteryx, which means “wings.”
Insects in the subclass Pterygota
have wings, or had wings once in
their evolutionary history. Insects in
this subclass are called pterygotes.
The main identifying feature of
pterygotes is the presence of veined
wings on the mesothoracic (second)
and metathoracic (third) segments
Order Ephemeroptera - mayflies
Order Odonata - dragonflies and damselflies
Order Orthoptera - crickets, grasshoppers and
locusts
Order Phasmida - stick and leaf insects
Order Grylloblattodea - rock crawlers
Order Mantophasmatodea - gladiators
Order Dermaptera - earwigs
Order Plecoptera - stoneflies
Order Embiidina - webspinners
Order Zoraptera - angel insects
Order Isoptera - termites
Order Mantodea - mantids
Order Blattodea - cockroaches
Order Hemiptera - true bugs
Order Thysanoptera - thrips
Order Psocoptera - barklice and booklice
Order Phthiraptera - biting and sucking lice

6. Pterygota

7. Structure of insect wing
the archedictyon contained 6–8 longitudinal veins
These veins (and their branches) are named according to a system
devised by John Comstock and George Needham
Costa (C) – the leading edge of the wing
Subcosta (Sc) – second longitudinal vein (behind the costa), typically
unbranched
Radius (R) – third longitudinal vein, one to five branches reach the
wing margin
Media (M) – fourth longitudinal vein, one to four branches reach the
wing margin
Cubitus (Cu) – fifth longitudinal vein, one to three branches reach
the wing margin
Anal veins (A1, A2, A3) – unbranched veins behind the cubitus

9. Modification of insect wing
Tegmina
Wings are leathery or parchment
like. They are protective in
function. They are not used for
flight.
e.g. Forewings of cockroach and
grasshopper
Elytra
Wing is tough and it is protective
in function. It protects hind
wings and abdomen. It is not
used during flight
e.g. Fore wings of beetles and
weevils.

10. Modification of insect wing
Hemelytra : The basal half of the wing is
thick and leathery and distal half is
membranous
e.g. Fore wing of heteropteran bugs.
Membranous wings: They are thin,
transparent wings
e.g Dragonfly honey bees
Scaly wings: Wings of butterfly and moths are
covered with small colored scales. Scales are
unicellular

11. Function of insect wing
• Wings in living insect serve a number of function including
active flying gliding parachuting
• It also help altitude stability while jumping
• Thermoregulation

12. THANK YOU
ANY QUESTION