Lecture 7Outline of previous lectureI. MetamorphosisII. ExoskeletonIII. MoltingIV. TicksOutline of current lectureI. Primitivea. Collembolab. Diplurac. Proturad. Thysanurae. Ephemetopteraf. OdonataCurrent lecturePrimitivecollembola (“springtails”)-means wedgeless than 6mm longhigh surface to volume ratio-worried about desiccationmust be in moist soilabundant when cool outno metamorphisis-Nymphsfurculumallows them to jump 50-100 times bodyoff 4th ventral segment of abdomen-sternumretinaculumelastic band that holds furculum in placecollophorefirst abdominal segmentosmoregulation-water intakesticky substance/turn overspermatophonepackage of spermprimitive-drop and pray methodgrasping methodlove gardenrain of fire-sleeping place sperm around hermating danceDiplura (“diplurans”)-two tailedLess than 5 mm longLive in soil (moist environment)Wood/grassMetabolous metamorphosisNo eyesBead like antennaeSpermatifors only valid for 2 daysSimple bodiesCerci-2 abdominal –can be broken off and regrowLong vs. short pincher and sclariterizedLong-sensory impute-plant feedersShort-predatorsProtura (“proturans”)-most primitiveFirst tail3 major body partsno eyes, wings, antennaelive in soil-feed on decomposing mattergas exchange through cuticleNo antennaeEnlarged forelegsThysanura (“silver fish” “firebrats”)Thysan-frungedUra-tailMandibulate mouthpartsThree caudal appendagesLong segmented antennaeCompound eyes-smallAntennae for sensoryHousehold pestsFeed on starch, paper, cardboardsSilver fish-mimic antsEphemetoptera (mayflies)No mouthparts in adult stage-die early-mate and lay eggsSworms-can last a week-cam see from spaceNiads-live for several years-feed and store calories12-24water pollutionFavorite food of fishCant fight back-no jawsAquatic larvae2-3 caudal filametnswings erect over the back, flexibleOdonata (“dragonflies” “damselflies” )Aquatic larvaeLarge mandables4 wings-hind wings are widerlarge compound eyes that meet dorsalywings are horizontal at rest’eat any flying insects-mosquitosDamselfies-4 wings narrow at baseRest-wings held verticalyWide dorsal compound eyesHemmimetabolous-niadsSit and wait for preyNiadsHuge labium-attack other organismsAnal breathingENTO 208 1st EditionLecture 7 Outline of previous lecture I. MetamorphosisII. Exoskeleton III. Molting IV. Ticks Outline of current lecture I. Primitive a. Collembola b. Diplura c. Protura d. Thysanurae. Ephemetopteraf. OdonataCurrent lecture Primitive - collembola (“springtails”)-means wedgeo less than 6mm longo high surface to volume ratio-worried about desiccation o must be in moist soilo abundant when cool out o no metamorphisis- Nymphs o furculumThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. allows them to jump 50-100 times body  off 4th ventral segment of abdomen-sternumo retinaculum elastic band that holds furculum in placeo collophore  first abdominal segment osmoregulation-water intake  sticky substance/turn over o spermatophone  package of sperm primitive-drop and pray method - grasping method  love garden  rain of fire-sleeping place sperm around her  mating dance - Diplura (“diplurans”)-two tailed o Less than 5 mm long o Live in soil (moist environment) Wood/grass o Metabolous metamorphosis o No eyes o Bead like antennae o Spermatifors only valid for 2 days o Simple bodies  Cerci-2 abdominal –can be broken off and regrow Long vs. short pincher and sclariterized - Long-sensory impute-plant feeders - Short-predators - Protura (“proturans”)-most primitive o First tail o 3 major body parts o no eyes, wings, antennae o live in soil-feed on decomposing matter o gas exchange through cuticle  No antennae Enlarged forelegs - Thysanura (“silver fish” “firebrats”)o Thysan-frunged o Ura-tail o Mandibulate mouthparts o Three caudal appendages o Long segmented antennae o Compound eyes-smallo Antennae for sensoryo Household pests  Feed on starch, paper, cardboards o Silver fish-mimic ants - Ephemetoptera (mayflies)o No mouthparts in adult stage-die early-mate and lay eggs  Sworms-can last a week-cam see from space o Niads-live for several years-feed and store calories 12-24o water pollution o Favorite food of fish Cant fight back-no jaws o Aquatic larvaeo 2-3 caudal filametnso wings erect over the back, flexible - Odonata (“dragonflies” “damselflies” )o Aquatic larvae o Large mandables o 4 wings-hind wings are widero large compound eyes that meet dorsaly o wings are horizontal at rest’ eat any flying insects-mosquitos o Damselfies-4 wings narrow at base o Rest-wings held verticaly o Wide dorsal compound eyes o Hemmimetabolous-niads  Sit and wait for preyo Niads Huge labium-attack other organisms Anal