Land Lubber Grasshopper Disection

http://www.earthlife.net/inverts/arthropoda.html 

There are 3 classes in the Subphylum Uniramia (Phylum Arthropodia):

1. Insecta (Insects)
2. Chilopoda (Centipedes)
3. Diplopoda (Millipedes)

http://kentsimmons.uwinnipeg.ca/16cm05/16labman05/lb6pg16.htm

External Structures:

  



front legs and antennae

• 2 compound eyes that consist of many simple visual units called ommatidia, 1 simple eye
 



Eye of our grasshopper


• can see ultra violet wave lengths
• antennae
• Mouth:
• labrum
• labia
• mandibles




back leg that is used for jumping


• maxillae (maxillary and labia palps are used for tasting)
• hypopharynx
• exoskeleton
• thorax
• legs



protective wing




• wings (2 different kinds- actual wings and then ones that protect them)

• ovipositor (only in females)

Internal Stuctures:

• veins




inside of our grasshopper


• esophagus: muscular tube that conveys food from the pharynx to the crop
• crop: storage organ
• stomach
• tracheal system: respiratory organ-air enters spiracles, leads to tracheae (branching tubules-branch repeatedly, reach individual cells or small groups of cells in the body)
• spiracles: small opening in body wall
• auditory membranes