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Insect Body Parts ab - abdomen an - antenna cpe – compound
eye cr – circus epm – epimeron eps – episternum hd – head la – labium md – mandible msn – mesonotum mst – mesothorax
mtn – metanotum mtt – metathorax oc – ocellus ov – ovipositor prn – pronotum prt – prothorax ps – pleural suture sp – spiracles st – sternum tg 1-10 – terga th – thorax
Head The head is the
hardened (sclerotized) anterior region of the body that bears the eyes, antennae, and mouthparts
Mouth parts Maxillae and mandibles are called Stylets
Labium- houses the feed channel and salivary tubes
Stylets- Pierce the tissues and contain section tubes
Labrum- Acts like a scabbard
Proboscis (tongue) uncoils by an increase in blood pressure.
Two General Types of Mouthparts
chewing and piercing-sucking (opened)
an – antenna cl – clypteus cpe – compound eye fr – frons la – labium lap – labial palpus lb – labrum md – mandible mx – maxilla mxp – maxillary palpus oc – ocellus
Types of Antennae A – setaceous B – filiform C – moniliform D – elbowed E – clavate F – capitate G – lamellate
H – ringed I – aristate J – serrate K – pectinate L – bipectinate M – plumose
Salivary Juices 1. Softens cell wall 2. Anesthetizes 3. May Pre-digest 4. Anti Coagulants 5. Spread diseases
Thorax - 2nd major body part - 3 segments (sometimes
4) If a 4th segment is present it is called an alitrunk. Actually seems to be the 1st Abdominal, but it’s the narrow waist in bees, ants, and wasps
a) Prothorax- Bears 1st
pair legs b) Mesothorax- Bears
2nd pair legs and 1st pair wings c) Metathorax- Bears 3rd
pair legs and 2nd pair of wings B and C = Ptera Thorax
General Wing A – anal vein aa – anal angle am – anterior or
costal margin ap – apex C – costa cc – closed cell Cu – cubitus cu-a – cubito-anal
crossvein
h – humeral crossvein M – media oc – open cell pm – posterior margin R – radius r-m – radio-medial
crossvein Rs – radial sector Sc – subcosta
Wings
Ptera- Winged 2 full sets of wings Dipterous- 1 pair Apterous- no wings All immature insects are apterous Wing veination for I.D.
General Insect Leg cx – coax fm – femur pt – pretarsus (claws) tb – tibia tr – trochanter ts – tarsus
Leg Shapes and specialization
1. Cursorial- wacking Legs are basically all the same size and shape 2.Saltatorial Saltar- To Jump
3.Raptorial Rrapten- Claw like Predators 4. Fessorial Digging Legs
Leg Shapes and specialization 5.Natatorial Pre-Natal Swimming Flat or Paddle like
-Thorax Houses Powerful locomotors muscles for -Leg -Wings Contains part of the digestive tract, circulatory
system and respiratory system.