Lecture 9Outline of previous lectureI. Insect systematics part 2a. Plecopterab. Embiidinac. Zorapterad. Dermapterae. Grylloblattodeaf. Mantophasmatodeag. Orthopterah. Phasmatodeai. MantodeaOutline of current lectureII. Insect systematics part 3a. Blattodeab. Isopterac. Psycopterad. Phthirapterae. ThysanopteraCurrent LectureBlattodea (“cockroaches”)ScavengersPronaotal shieldEnlarged-covers most of head and anterior thoracic regionOotheca- sclerotized egg casingLeave in different areasNear skinks, household appliancesHouse can easily be infested by these oothecaKnown as water bugsCome in all shapes and sizesTropic and subtropics climate-warmLike living underthingsAdapted for runningDorsal flattenedParametabolismNymphs4,000 species12 considered pestsTexasAmerican cockroaches-pests (kitchen and indoors)Very fast runnersOriental (campuses-glossy black)Slow roaches-not well developed wingsStairwellsGerman cockroachesReproduce quicklyFlyBrown bandedWell developed wingsNot known vectorsCan cause asthmaexubia- shedding of exoskeletonMale-lumbs on pronaotal shieldIsoptera “termites”Iso-equalTera-wings (equal in length)Chewing mouth partsFeed on wood (cellulose)Social: caste systemLarge individuals living togetherEach has their own jobWorker-pale-tend gardens and food (do the work)Soldiers-Muscular head-protect colonyWilling to die for colonyDo not reproducePrimary reproductive-fly off and will produce new colonySecondary reproductive- female will stay in the colony-queenFull of eggsCan lay 60-80 eggs a daySymbiontsNot born with-must get from other members of colonistsAnal feedingPsycoptera (“wood lice”)Expanded clypeusAttach to upper lip (labrum)Give big headed lookWell developed wingsMoist environmentsUnder stones, bark, wookExploit open nichesPhthiraptera (“lice”)Phth-louseAptera-no wingDifferent from your bookEctoparasitesLives on the outside of another thingGets nutrition from another organism-fur, feather, blood (predators consume other organism)Anoplura “sucking lice”Feed on blood or other fluidsMallophaga “chewing lice”Larger headsBig mandiblesFeed on fur, skin, feathersNitLayer eggs on hostsGlued on single fair or featherHighly sclerotized**worry about after natural disastersspread easilydirty conditionsMost common-head liceSingle louse can jump from one kid to anotherEasy to get rid ofThysanoptera (“thrips”)PhytophagousSpread plant diseaseUnder 3 mm longPaddle on wings-swim through the airChewing mouthpartsENTO 208 1st Edition Lecture 9Outline of previous lecture I. Insect systematics part 2a. Plecopterab. Embiidinac. Zorapterad. Dermapterae. Grylloblattodeaf. Mantophasmatodeag. Orthopterah. Phasmatodeai. MantodeaOutline of current lecture II. Insect systematics part 3 a. Blattodeab. Isopterac. Psycopterad. Phthirapterae. ThysanopteraCurrent Lecture  Blattodea (“cockroaches”)- Scavengers- Pronaotal shield o Enlarged-covers most of head and anterior thoracic region These 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.- Ootheca- sclerotized egg casingo Leave in different areas o Near skinks, household appliances  House can easily be infested by these ootheca- Known as water bugs - Come in all shapes and sizes - Tropic and subtropics climate-warm- Like living underthingso Adapted for running o Dorsal flattened - Parametabolismo Nymphs- 4,000 specieso 12 considered pests - Texas o American cockroaches-pests (kitchen and indoors) Very fast runners o Oriental (campuses-glossy black) Slow roaches-not well developed wings  Stairwells o German cockroaches  Reproduce quickly  Fly o Brown banded  Well developed wings - Not known vectorso Can cause asthma - exubia- shedding of exoskeleton - Male-lumbs on pronaotal shield  Isoptera “termites”- Iso-equal - Tera-wings (equal in length)- Chewing mouth parts o Feed on wood (cellulose)- Social: caste system o Large individuals living togethero Each has their own job  Worker-pale-tend gardens and food (do the work) Soldiers-Muscular head-protect colony  Willing to die for colony  Do not reproduce  Primary reproductive-fly off and will produce new colony  Secondary reproductive- female will stay in the colony-queen  Full of eggs  Can lay 60-80 eggs a day - Symbiontso Not born with-must get from other members of colonists o Anal feeding  Psycoptera (“wood lice”)- Expanded clypeus o Attach to upper lip (labrum) o Give big headed look- Well developed wings - Moist environments o Under stones, bark, wook- Exploit open niches Phthiraptera (“lice”)- Phth-louse - Aptera-no wing o Different from your book o Ectoparasites Lives on the outside of another thing  Gets nutrition from another organism-fur, feather, blood (predators consume other organism) o Anoplura “sucking lice”  Feed on blood or other fluids o Mallophaga “chewing lice” Larger heads Big mandibles  Feed on fur, skin, feathers o Nit  Layer eggs on hosts  Glued on single fair or feather  Highly sclerotized o **worry about after natural disasters  spread easily  dirty conditions o Most common-head lice  Single louse can jump from one kid to another  Easy to get rid of  Thysanoptera (“thrips”)- Phytophagous- Spread plant disease - Under 3 mm long - Paddle on wings-swim through the air - Chewing