Complete external morphological character of Thrips. order Thysanoptera family: Thripidae

2. Muhammad Salman
34-E

3. 
Order: Thysanoptera.

Family: Thripidae

Thrips are tiny, slender yellowish brown
insects with fringed wings.

Hemimetabolous insects.

5.  Head
Antennae
Mouthparts
Eyes
 Thorax
Wings
Legs
 Abdomen
Aedeagus
Ovipositor
Setae
Spiracles

8. Thrips External Morphology

9. 
Antennae relatively short, 4- to 9-segmented.

Bead-like (moniliform) or filiform (in some )

The families of thrips are separated largely by the
characters of the antennae, particularly the number
of antennal segments and the nature of the sensoria
on the third and fourth segments.

10. Moniliform

11. Filiform

12. Rasping-Sucking Mouthparts
Thrips have asymmetrical mouthparts that are also
unique to the group.
 The right mandible of thrips is reduced and
vestigial and in some species completely absent.
 The left mandible is larger, and forms a narrow
stylet used to pierce the cell wall of tissues.
 Some species may then inject digestive enzymes as
the maxillary stylets and hypopharynx are inserted
into the opening to drain cellular fluids.



13. 
This process leaves a distinctive silvery or bronze
scarring on the surfaces of the stems or leaves
where the thrips feed.

14. 
Thrips has Compound Eyes.

15. Compound Eyes

16. Thrips External Morphology

17. 


Two Pairs
Strippy type.
The wings are modified into strips or rod-like
structures & fringed with long hair.

Strap-like two pairs of wings nearly equal, and are
very thin with little venation and a lot of hairs
making a fringe around the edge, which is why they
were named Thysanoptera.

21. 
All Three pairs are Ambulatory or Walking legs.

Tarsi 1-2-segmented, with 1-2 claws and are
bladder-like at the end.

22. All pairs are Abmbulatory or walking legs

24. Thrips External Morphology

25. 
The abdomen is elongated and generally flattened
dorso-ventrally, especially in the Tubulifera (Suborder).

There are 10 distinctive segments with a rudiment
of the 11th.

26. 
The male genital organs are composed of paired
appendages and an unpaired copulatory organ
(aedeagus), all of which retract into the abdomen.

The paired testes and accessory glands with their
ducts occur in the posterior half of the abdomen.

27. Male Thrips
Aedeagus

28. Aedeagus

29. 
The female usually has an ovipositor composed of
two pairs of sawlike blades.

There are eight egg sacs (ovarioles) and spherical,
often pigmented, seminal receptacle for storage of
sperm acquired during mating.

30. Ovipositor

31. Ovipositor

32. 
Often in the Tubulifera, several setae on the back
are S-shaped and hook into the wing fringes to hold
the wings at rest.
Setae

33. 
The first and eighth abdominal segments of
Thrips bear breathing holes called Spiracles.

34. 





Lewis Judson Stannard. Jr, Thrips, 2013,
http://www.britannica.com/EBchecked/topic/594043/thrips/3
9621/The-adult
Anonymous, Thysanoptera Thrips, 2013,
http://www.discoverlife.org/mp/20q?search=Thysanoptera
Drees & Jackman, Order Thysanoptera – Thrips, 2013,
http://bugguide.net/node/view/7754
Anonymous, Thrips, 2013,
http://en.wikipedia.org/wiki/Thrips#Characteristics
John R. Meyer, Thysanoptera Thrips, 2013,
http://www.cals.ncsu.edu/course/ent425/library/compendiu
m/thysanoptera.html
Dr. Alton Stormy Sparks. Jr, Thrips, 2013,
http://www.ent.uga.edu/veg/solanaceous/thrips.htm

35. Thanks for bearing me..!