ENTO 208 1st Edition Lecture 14 Outline of Lecture 13I. Horse and Dee Flies: Tabanidaea. Tabanidae importanceb. Tabanidae ControlII. Bot Flies - Family: Oestridaea. Bot Fly Importance b. New World Skin Bot Flies c. Old World Skin Bot Flies d. Nose Bot Fly e. Stomach Bot Fly f. Human Bot flyg. Bot Fly controlOutline of Lecture 14I. MosquitoesII. Identificationa. Species III. Life CycleIV. Common misconception:V. TerminologyCurrent LectureI. Mosquitoes – Order: Diptera, Family: Culicidaei. Found on every inhabitable continentii. Most important arthropod affecting human healthb. Morphologyi. Antenna, proboscis, 3 pairs of legs, one pair of wingsii. Females are largeriii. Males have more “feathery” antennae II. Identificationi. Many can be identified with the naked eye- Palp length relative to proboscis, blunt or pointed abdomen, scale shape, scale banding patterns, overall sizeThese 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.ii. Diagnostic features sometimes lost via trapiii. Some species require a compound scope (tarsal claws, genitalia, etc.)b. Anophelesi. Palps as long as proboscisii. Often patterns on wingsc. Aedesi. Most common nearby (albopictus)ii. Pointed abdomen, dark body (w/ or w/out bands)iii. Very diverseiv. Aegypt can transmit yellow fever, dengue, chikrngunya, eastern equine encephalitisv. albopictus have white lines on thoraxvi. vexans is un patternedd. Psorophorai. Pointed abdomenii. Bug with fuzzy legsiii. Yellow and brown (with bands on ciliate <-giant bodies)iv. Ferox have “white boots”e. Culexi. Blunt abdomenii. Golden scalesiii. Most abundant in college stationiv. Can transmit West Nilef. Culisetai. Large version of culexii. Blunt abdomeniii. Armpit hairsg. Coquillettidiai. Blunt abdomenii. Broad, salt and pepper scalesiii. White bands on legsiv. Large III. Life Cyclea. Eggs laid individually (anopheles [in a pattern], aedes) or on rafts (cuvex)b. Larvae – 4 instars, wrigglers, aquatici. Variation in respiration:-Sit on top of the water so that the dorsal spiracles are open to the air-Siphon -Attach to a plantc. Pupae – tumblersd. Adult – i. only females blood feed-some are autogenous [don’t need blood meal to lay eggs]-tocorhycites does not blood feed [its larvae are predatious]-females have several gonotrophic cyclesii. male & female also feed on sugar sourcesIV. Common misconception:a. More rain = more mosquitoesi. Some mosquitoes are “flood water” species, some are “container”-Not all equally efficient vectors of diseaseii. Culex lays its eggs in rafts that do NOT resist desiccationiii. Eggs of those that lay singly DOV. Terminologya. Oviposition – laying eggsb. Gonotrophic cycle – cycle of egg production from blood meal to layingi. Parous – females that have completed a gonotrophic cycleii. Nulliparous – females that have not completed a gonotrophic cyclec. Diapause – physiological state of arrested developmentd. Dissemination – the spread of a disease agent from gut to rest of bodyi. Allows agent to reach salivary gland for transmission to hoste. Extrinsic incubation period – interval between uptake of agent by vector and when the vector is capable of transmitting the agent to a