Entomology Lab Lab Test 1

Term Definition
Arachnida Scientific Name for Spider or Scorpion
Crustacea Scientific Name for crab, shrimp or lobster
Insecta Scientific Name for grasshopper or beetle
Chilopoda Scientific Name for centipede
Diplopoda Scientific Name for millipede
Head Used for sensory input, heavily sclerotized, unsegmented
Antennae Moveable appendages on the front or side of the head
Compound Eye Has large hexagonal facets, cannot be focused, differentiates color
Omitidia Lens in Compound eye
Simple Eyes used for light sensory
Ocelli simple eye
Labrum Upper Lip
Labium Lower Lip
Mandible Like the jaw
Maxillae Behind Mandible, has maxillary and labial palps
Thorax Has three segments, Locomotion, holds legs and wings,
Prothorax 1st segment of the thorax, has one pair of legs
Mesothorax 2nd segment of the thorax, holds 1st pair of wings and 2nd pair of legs
Metathorax 3rd segment in thorax, hold 2nd pair of wings and 3rd pair of legs
Pronotum in the Prothoax, covers the dorsal side and extends to the base of the wings
Pleura in Mesothorax composed of two sclerites, anterior is episternum and posterior epimeron
Episternum posterior part of metathorax and mesothorax
Emperion anterior part of mesothorax and metathorax
Leg joints are part of flexion
Coxa first part of leg
Throcanter follows coxa
Femur follows throcanter is used for jumping
Tibia follows femur
Tarus follows tibia is like an ankle
Claw last segment of the leg
Abdomen where the digestive and reproductive system lay
Typanum auditory organ on first abdominal segment
Spiracles opening of an insect to tracheal system in abdomen
Claspers male reproductive system
Ovipositors female reproductive system
Digestive long tube extending though middle of body cavity
Foregut has mouth, pharynx, esophagus, crop, and proventriculus
Mouth Anterior opening to digestive system
Pharynx short funnel-shaped organ in the back of the mouth
Esophagus leads from pharynx to crop
Crop posterior end of esophagus that widens
Proventriculus where mechanical digestion takes place
Mindgut where ventriculus and gastric caeca are
Ventriculus stomach portion
GAstric caeca blind end tubes leading to anterior part of stomach
HIndgut where malpighian tubes, ileum, colon, rectum, and anus are located
Malpighian tubes hair like structures connected to stomach and ileum, works like kidney
Ileum anterior part of intestines
Colon narrow portion connecting ileum to rectum
Rectum collects undigested waste before expelling from the body
Anus posterior opening of the body
Nervous segmentally arranged ganglia, ventrally located
Brain largest ganglia in the head
Ventral nerve cord connects brain to thoracic ganglia and runs throughout insect
Testes male reproductive organ
Ovaries female reproductive organ
Dorsal back
Ventral front
Lateral side
Anterior Front (Beginning)
Posterior End
Clypeus Connecting mouth to head
Thysanura Silverfish, firebrat
Ametabolous no change from birth to death
Thysanura primative mouthparts
3 cadaval filaments
no wings
a metanbolous
Apterygota wingless
Odonata dragonflies
Hemimetabolous naiads as immature
Odonata wings always straight out
short antennae
short abdomen
bristle legs
Pterygota having wings
Orthoptera grasshoppers, crickets
Paurometabolous little change
Orthoptera chewing mouthparts
saddle like pronotum
enlarged femur
Dermaptera earwigs
chewing mouthparts
pronotal shield
Blattodea cockroaches
chewing mouthparts
pronotal shield
head and eyes angled down
Isoptera termites
beaded antennae
chewing mouthparts
fungal symbiotis
Hemiptera true bugs
piercing/sucking mouthparts
triangular scutellum
Pthiraptera lice
dorsoventrally flattened
hook like tibia
Anoplura-head narrower than thorax
Malloghaga/Amblycera- head wider than thorax
Thysanoptera thrips
tiny and slender
fringed wings
high surface to volume ratio
Mantodea mantids
raptorial forelegs
elongated pronotum
triangle head
can tun head
Colepetra beetles
elytra- sclaratized wings
chewing mouth parts
highly diverse
Lepidoptera butterflies, moths
scaled wings
nectar feeding adults
phytophagous larvae
Diptera true flies
1 pair of true wings
1 pair of haltares
mouthparts- slicing, scraping, sponging, sucking, piercing
nematocera- long antenna
brachycera- short antenna
Siphonaptera fleas
laterally flattened
secondarily apterous
piercing/sucking mouthparts
big hind legs
Hymenoptera bees, wasps, ants
paired wings move as one
restricted waist
Holometabolous complete change

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