RAJVEER BIRRA ROOM NO. 24 (SHIVALIK BHAWAN) GBPUA&T PANTNAGAR (U.S. NAGAR) UTTARAKHAND (263145)

1. A PRESENTATION ON ORDER
ORTHOPTERA
Submitted to –
Dr. Menna Agnihotri
Asst. Professor
Dept. of Entomology
PRESENTED BY
PUSPENDRA SINGH
(45480)
RAJVEER (45664)

2. Orthoptera
Synonyms : Saltatoria, saltatoptera
Etymology : Ortho – straight; ptera –
wing
Common name : Grasshoppers, Locust,
katydid,
Cricket, Mole cricket

3. General character
 Medium to large sized insect.
 Antenna is filiform.
 Mouthparts are mandibulate.
 Prothorax is large.
 Pronotum is curved, ventrally covering the pleural
region.
 Hind legs are saltatorial.
 Forewing is leathery, thickened and known as
tegmina. They are capable of bending without breaking.
 Hind wing are membranous with large anal area.
The are folded by longitudinal pleats between veins and
kept beneath the tegmina.

4. Cont...
Cerci are short and un-segmented.
Ovipositor is well developed in female.
In many orthoptera is newly hatched first
instars nymphs are covered by loose cuticle and
are called pronymphs.
Wing pads of nymphs undergo reversal during
development.
Specialised stridulatory (sound-producing) and
auditory (hearing) organs are present.

5. Suborder : Caelifera
Family : (1) Acrididae
Suborder : Ensifera
Family : (1) Tettigonidae
(2) Grylllidae
(3)
Gryllotalpidae

6. Family : Acrididae
•Antennae is short.
•Tarsus is 3 segmented.
•Ovipositor is short and horny.
•Tympanum is located one on either side of the first
abdominal segment.
•Sound is produced by femoro –
alary mechanism.
•eg. Short horned grasshopper
and locust.

7. Family : Acrididae
Genus - Hyroglyphus
Species – nigroriplates
DOC – 01/04/2014
POC - CRC

10. Family :Tettigonidae
•Antennae is long, slender as long as or longer than the
body.
•Tarsus is four segmented.
•Ovipositor is sword like.
•Auditory organs are in fore tibiae.
•In each fore tibiae a pair of
tympanums present.
•Sound production is alary
type.
Eg: long horned grasshopper,
Katydids, bush crickets.

11. Family :Tettigonidae

12. Family : Gryllidae
•Tarsus is four segmented.
•Ovipositor is slender and needle like.
•Forewing are abruptly bent down to cover the sides of
body.
•Hind wings are acuminate.
•Cerci are long and un-segmented.
•Auditory and stridulatory organs
are similar to the long horned
grasshopper.
•The produce a shrill chirping
noise during night.
•Eg: Gryllus spp.

13. Cricket
Family - Gryllidae
Scientific name – Gryllus spp.
DOC – 01/05/2014
POC – shivalik hostle

14. Family :Gryllotalpidae
•They are brown coloured insects found inside the
burrow.
•Eyes are reduced.
•Pronotum is elongated, ovate and rounded posterior.
•Forelegs are fossorial.
•Tibiae are expanded.
• hind wing are extended beyond the
tegmina as a pair of processes.
•Special stridulatory organs are
absent.
•A pair of tympanum is found
under surface of the tibiae.
•Ovipositor is vestigial.

15. Mole cricket
Family – Gryllotalpidae
Genus – Gryllotalpa
Species – africana
DOC – 01/05/2014
POC - CRC

16. THANK YOU