External Morphology Of Insects Flashcards
Study of insect structures (parts) and functions
Insect Morphology
How many body regions
3
Frontal region for visual and sensory purposes
Head
Middle region for locomotion or mobility
Thorax
3 sub-regions of thorax
Prothorax, mesothorax, metathorax
Where legs are found
Thorax
Where wings are found
Mesothorax and metathorax
Posterior region for internal or visceral organs
Abdomen
Where to find the external parts of genitalia
Tip of abdomen
Legs of caterpillar
Pseudolegs
Hearinhn orgam of short horned grasshoppers
Tympanum
Where is tympanum found in short horned grasshoppers
Each side of first abdominal segment
Where is tympanum of long horned grasshoppers
On each fore tibia
Upper lip
Labrum
Lower lip, with 2 palpi
Labium
Short antenna-like part
Palpi/palpus
Sensory lobe inside surface of labrum
Epipharynx
Tongue-like structure inside mouth of grasshoppers
Hypopharynx
Mouth type:
Mandibles are tooth-like, suited for solid food
Chewing
For liquid food
Elongated proboscis
Mouth type:
Mandibles and maxillae become needle-like stylets, for piercing plant epidermis, sucking liquid food, or animal blood
Piercing-sucking
Mouth-type:
Wet, sponge-like tip for liquid food, or liquefying solid food then absorbing resulting liquid
Sponging
Mouth type:
Elongated, and adapted for sucking nectar of flowers without piercing the epidermis
Siphoning
Moutj-type:
Only one mandible is functional, for scratching leaf surfaces, and exuding sap will be sucked
Rasping-sucking
Mouth type:
For lapping nectar and for cutting leaves etc.
Chewing-lapping
Mouthpart of thysanura
Chewing
Mouth of odonata
Chewing
Mouth of orthoptera
Chewing
Mouth of blattodea
Chewing
Mouth of isoptera
Chewing
Mouth of thysanoptera
Rasping-sucking
Mouth of hemiptera
Piercing-sucking