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Insect 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. 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 Types of Antennae Setaceous Filiform - Thread like -Uniform segs. - Grasshopper -Beetles Moniliform -Bead-Like -Globular or Rounded -Usually Uniform - Common in Beetles & Termites Elbowed Wasps, Ants, Bees, Beetles Capitate Capitate Lamellate -Leaf like, laminated -Beatles -June -Carrion -Scarab Ringed Aristate Flies Serrate - Saw like - Uniform segs. - Coleoptera only Pectinate - Comb. like - Certain moths and beetles Bipectinate Second set Plumose - Feather- like - Flies and Moths 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. Wing Form - Elytra- Tough hard wing - Hemelytra- ½ heathery ½ membranes Tegminous Forewing leathery Orthortera Membranous- clear delicate nerve like 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 Parts of the leg 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. Abdomen
