Lab 11 External Anatomy of Lubber Grasshopper

Taxonomic rank of the Lubber Grasshopper

Phylum: Arthropoda

Subphylum: Hexapoda

Class: Insecta

Insect body regions

head, thorax, abdomen

Thorax

this has 3 segments

-prothorax

-mesothorax

-metathorax

prothorax

mesothorax

metathorax

forewings

these are tough and leathery and aid in flight

hindwings

these are membranous and smaller. Aid in flight

front walking legs

this has 5 main jointed parts

-coxa

-trochanter

-femur

-tibia

-tarsus

coxa

(9)

trochanter

(8)

femur

(1)

tibia

(2)

tarsus

this is made of several jointed segments and has a small claw at the end

ovipositor

(6) this is a trait in many females, this is used to dig a hole to deposit eggs

tergum

sternum

spiracles

these are breathing tubes of insects located on abdomen

tracheal respiratory system

composed of tubes with holes (spiracles) through the body that admit air

-open circulatory system

tympanum

this is found on each side under the wings, hearing organ

compound eyes

ommatidia

ocelli

Simple eyes on an insect used to sense light

labrum

in arthropods, a mouth-part that functions as an upper lip.

labium

lower lip

maxillae

these are used to hold and manipulate food so that it can be chewed or sliced by the mandibles

mandibles

"jaws" these are used to for cutting and crushing food