10 Insect Mouth Parts
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“Mouth-parts of Insects” A presentation compiled from various sources by
Dr. PARVISH PANDYA, Zoology Dept. Bhavan’s College, Andheri. Dr. PARVISH PANDYA’s presentation
Sites from which presentations have been downloaded and later editted. I am indeed thankful to them for their kindness and support : http://esg-www.mit.edu:8001/esgbio/cb/org/organelles.html http://faculty.pnc.edu/jcamp/parasit/parasit.html http://www.amnh.org/rose/hope/creatinghope/ http://www.biology.eku.edu/SCHUSTER/bio%20141/POWERPOINT %20NOTES/Intro%20to%20Protozoa_files/fullscreen.htm http://www.biosci.ohio-state.edu/~zoology/eeob405/ http://www.tulane.edu/~wiser/protozoology/pwpt/ http://www.iep.water.ca.gov/suisun/photos/wildlife.html http://www.uta.edu/biology/marshall/2343/ http://www.uta.edu/biology/faculty/faculty.html http://www.okc.cc.ok.us/biologylabs/Documents/Zoology/PowerPoint.htm http://bio.fsu.edu/ http://www.aw-bc.com/ http://www.nhm.org/ http://www.geo.cornell.edu/eas/education/course/descr/EAS302/presentations/ It is very easy to find mistakes in these presentations…..I request you to kindly rectify them and supply me the modifications needed at [email protected] Thanks a lot and have fun in teaching & learning Zoology…. Dr. PARVISH PANDYA’s presentation
Insect Mouthparts
Dr. PARVISH PANDYA’s presentation
Insects utilize nearly every organic substance
animal
plant
solid Dr. PARVISH
PANDYA’s presentation
liquid
Dr. PARVISH PANDYA’s presentation
Head
Important external features: 1) Antennae -- contain chemical, olfactory, tactile, and auditory receptors. Can also sense vibrations. 2) Compound eyes (vision/movement/color) and dorsal ocelli (light detection). Many insects perceive ultraviolet, blue-green and red wavelengths. 3) Specialized mouth parts – food gathering, defense.
Basic Structures of Insect Mouthparts • One labrum – upper lip • Two mandibles - jaws • Two maxillae – saw-like • One labium – lower lip Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
1. Chewing Mouthparts • • • •
The “classic” design Cockroaches, grasshoppers, beetles, etc. Chewing lice, order Mallophaga Many immatures, including nymphs and larvae
Dr. PARVISH PANDYA’s presentation
BEETLES
Dr. PARVISH PANDYA’s presentation
2 general types: 1) mandibulate: specialized for biting off and chewing food (most nymphs) 2) haustellate: specially adapted for piercing and sucking (e.g. mosquitoes and dipterans).
Dr. PARVISH PANDYA’s presentation
Food
sal iva Dr. PARVISH PANDYA’s presentation
2. Rasping - sucking • Thrips • Left mandible, • two maxillary stylets
Dr. PARVISH PANDYA’s presentation
Pear thrips
Gladiolus thrips
Lily bulb thrips
Greenhouse thrips
Banded thrips
Large-legged thrips
Heterothrips salicis
Dr. PARVISH PANDYA’s presentation
3. Piercing-Sucking Mouthparts • Hemiptera and Homoptera (true bugs) • Sheath-like labium, four piercing stylets (2 mandibles, 2 maxillae)
Dr. PARVISH PANDYA’s presentation
• piercing-sucking mouthparts • extraoral digestion • salivary glands • plant necrosis, animal stunning and poisoning • stylets – piercing and grooved
BUG BEAKS
Dr. PARVISH PANDYA’s presentation
Triatomine bug, Rhodnius
Both Hemipterans feed on blood Bedbug, Cimex
Dr. PARVISH PANDYA’s presentation
4. Diptera: Mosquito subtype • Six stylets enter host skin (two mandibles, two maxillae, labrum, and hypopharynx • Labium acts as protective sheath and folds back as stylets enter skin
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
4.Diptera: Sponging muscoid fly subtype • House fly, face fly • Labellum with labrum-epipharynx and hypopharynx form food canal
Dr. PARVISH PANDYA’s presentation
FLIES
Order Diptera Dr. PARVISH PANDYA’s presentation
doohickies (that's a scientific word meaning "I can't remember what they are called") or An unnamed gadget
Dr. PARVISH PANDYA’s presentation
4. Diptera: Louse fly subtype • Haustellum penetrates skin; labrum and hypopharynx form food and salivary canals • Louse flies (Diptera) • Hippoboscidae includes sheep ked Dr. PARVISH PANDYA’s presentation
5. Lice: piercing-sucking • Ventral stylet (perhaps labium) is principal piercing organ. Intermediate stylet (perhaps hypopharynx) and dorsal stylet (perhaps fused maxillae) penetrate skin • Sucking lice Dr. PARVISH PANDYA’s presentation
6. Siphoning: Lepidoptera
Proboscis (galae of maxillae) formsPANDYA’s food canal Dr. PARVISH presentation
Lepidoptera
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
7. Chewing-siphoning: Hymenoptera
Mandibles for chewing and labial glossa for siphoning. Example: honey bee Dr. PARVISH PANDYA’s presentation
Hymenoptera
Dr. PARVISH PANDYA’s presentation
Non-insect : Ticks and mites • Chelicerae cut skin
Dr. PARVISH PANDYA’s presentation
Tick head
Blood Pool
Dr. PARVISH PANDYA’s presentation
chelicera
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA, Zoology Dept. Bhavan’s College, Andheri. Dr. PARVISH PANDYA’s presentation
Sites from which presentations have been downloaded and later editted. I am indeed thankful to them for their kindness and support : http://esg-www.mit.edu:8001/esgbio/cb/org/organelles.html http://faculty.pnc.edu/jcamp/parasit/parasit.html http://www.amnh.org/rose/hope/creatinghope/ http://www.biology.eku.edu/SCHUSTER/bio%20141/POWERPOINT %20NOTES/Intro%20to%20Protozoa_files/fullscreen.htm http://www.biosci.ohio-state.edu/~zoology/eeob405/ http://www.tulane.edu/~wiser/protozoology/pwpt/ http://www.iep.water.ca.gov/suisun/photos/wildlife.html http://www.uta.edu/biology/marshall/2343/ http://www.uta.edu/biology/faculty/faculty.html http://www.okc.cc.ok.us/biologylabs/Documents/Zoology/PowerPoint.htm http://bio.fsu.edu/ http://www.aw-bc.com/ http://www.nhm.org/ http://www.geo.cornell.edu/eas/education/course/descr/EAS302/presentations/ It is very easy to find mistakes in these presentations…..I request you to kindly rectify them and supply me the modifications needed at [email protected] Thanks a lot and have fun in teaching & learning Zoology…. Dr. PARVISH PANDYA’s presentation
Insect Mouthparts
Dr. PARVISH PANDYA’s presentation
Insects utilize nearly every organic substance
animal
plant
solid Dr. PARVISH
PANDYA’s presentation
liquid
Dr. PARVISH PANDYA’s presentation
Head
Important external features: 1) Antennae -- contain chemical, olfactory, tactile, and auditory receptors. Can also sense vibrations. 2) Compound eyes (vision/movement/color) and dorsal ocelli (light detection). Many insects perceive ultraviolet, blue-green and red wavelengths. 3) Specialized mouth parts – food gathering, defense.
Basic Structures of Insect Mouthparts • One labrum – upper lip • Two mandibles - jaws • Two maxillae – saw-like • One labium – lower lip Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
1. Chewing Mouthparts • • • •
The “classic” design Cockroaches, grasshoppers, beetles, etc. Chewing lice, order Mallophaga Many immatures, including nymphs and larvae
Dr. PARVISH PANDYA’s presentation
BEETLES
Dr. PARVISH PANDYA’s presentation
2 general types: 1) mandibulate: specialized for biting off and chewing food (most nymphs) 2) haustellate: specially adapted for piercing and sucking (e.g. mosquitoes and dipterans).
Dr. PARVISH PANDYA’s presentation
Food
sal iva Dr. PARVISH PANDYA’s presentation
2. Rasping - sucking • Thrips • Left mandible, • two maxillary stylets
Dr. PARVISH PANDYA’s presentation
Pear thrips
Gladiolus thrips
Lily bulb thrips
Greenhouse thrips
Banded thrips
Large-legged thrips
Heterothrips salicis
Dr. PARVISH PANDYA’s presentation
3. Piercing-Sucking Mouthparts • Hemiptera and Homoptera (true bugs) • Sheath-like labium, four piercing stylets (2 mandibles, 2 maxillae)
Dr. PARVISH PANDYA’s presentation
• piercing-sucking mouthparts • extraoral digestion • salivary glands • plant necrosis, animal stunning and poisoning • stylets – piercing and grooved
BUG BEAKS
Dr. PARVISH PANDYA’s presentation
Triatomine bug, Rhodnius
Both Hemipterans feed on blood Bedbug, Cimex
Dr. PARVISH PANDYA’s presentation
4. Diptera: Mosquito subtype • Six stylets enter host skin (two mandibles, two maxillae, labrum, and hypopharynx • Labium acts as protective sheath and folds back as stylets enter skin
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
4.Diptera: Sponging muscoid fly subtype • House fly, face fly • Labellum with labrum-epipharynx and hypopharynx form food canal
Dr. PARVISH PANDYA’s presentation
FLIES
Order Diptera Dr. PARVISH PANDYA’s presentation
doohickies (that's a scientific word meaning "I can't remember what they are called") or An unnamed gadget
Dr. PARVISH PANDYA’s presentation
4. Diptera: Louse fly subtype • Haustellum penetrates skin; labrum and hypopharynx form food and salivary canals • Louse flies (Diptera) • Hippoboscidae includes sheep ked Dr. PARVISH PANDYA’s presentation
5. Lice: piercing-sucking • Ventral stylet (perhaps labium) is principal piercing organ. Intermediate stylet (perhaps hypopharynx) and dorsal stylet (perhaps fused maxillae) penetrate skin • Sucking lice Dr. PARVISH PANDYA’s presentation
6. Siphoning: Lepidoptera
Proboscis (galae of maxillae) formsPANDYA’s food canal Dr. PARVISH presentation
Lepidoptera
Dr. PARVISH PANDYA’s presentation
Dr. PARVISH PANDYA’s presentation
7. Chewing-siphoning: Hymenoptera
Mandibles for chewing and labial glossa for siphoning. Example: honey bee Dr. PARVISH PANDYA’s presentation
Hymenoptera
Dr. PARVISH PANDYA’s presentation
Non-insect : Ticks and mites • Chelicerae cut skin
Dr. PARVISH PANDYA’s presentation
Tick head
Blood Pool
Dr. PARVISH PANDYA’s presentation
chelicera
Dr. PARVISH PANDYA’s presentation
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