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Bugs Lab
Final
| Question | Answer |
|---|---|
| Family Culicidae (mosquitoes) characteristics? | -Greatest significance. -1 pair of wings, 1 pair halteres. - Long antennae of many similar segments. -Wings have costa around the apex with scales on wing veins. -Long proboscis. -Females suck blood. |
| Mosquito lifecycle? Larva characteristics? | 4 aquatic larval instars= wigglers. -Enlarged thorax -anal papillae on 9th segment -Respiratory siphon on 8th abdominal. -Pupae have comma shape. Paddles on tail. -Tumblers, have respiratory trumpets |
| Nematocera | -Long antennae of many similar segments -Larvae have distinct, sclerotized head capsules. |
| Toxorhynchitinae | -Large, colorful. -Large, curved proboscis. -Do not bloodfeed as adults, larvae are predaceous. |
| Anophelinae | -Vectors of human malaria. -Eggs single with floats. -No siphon, palmate hairs on abdomen, tergal plates on abdomen. -short and broad breathing trumpet on pupae, abdominal spines -Palps as long as proboscis -Light/dark scales along wing veins |
| Culicinae | -Aedes, Culex. -Eggs single or rafted, no floats. -Siphon, no palmate hairs or tergal plate. -No abdominal spines, breathing trumpets short/long and skinny -Palps much shorter than proboscis -Scales on wings have no distinct patterns; may have mixt |
| Immune response? | Piercing/sucking mouthparts with stylets in labium inserted, locate vessel, blood feed. Saliva contains proteins (allergens). Naive host= little reaction. Antibodies produced result in itching reaction. Complete feeding when red with blood. |
| Wheal? Flare? | Hard, raised spot Red tissue surrounding wheal. |
| Female vs. male? | Male antennae are plumose and feathery. female are filiform with fewer lateral hairs. most females have short palps (minus Anopheles) Males have abdomen claspers. |
| Anopheles vs. Aedes vs. Culex larvae | Anopheles: no respiratory siphon Aedes: short respiratory siphon, 1 tuft Culex: long respiratory siphon, multi-tuft |
| Anopheles vs. Culex vs. Aedes adult. Scutellum on bottom of thorax. | Anopheles: wings spotted, palps as long as proboscis Culex:narrow wing scales, post-spiracular or no bristles, tip of abdomen blunt Aedes: tip of abdomen pointed, white scales on abdomen basal. |
| Tabanidae | Brachycera. Horse flies, deer flies, clegs. Stylate, discal cell, padfoot (2 pulvilli and an empodium), bright eyes, large wings with dark pigment, sickle-like mandibles and a sponging labella. Larva have Graber's organ |
| Tse tse flies, hippoboscid | Cyclorrhapha. Produce 1 egg at a time. LARVIPOSITION: egg hatches inside female, goes through 3 instars. Tse tse transmit Trypanosoma. Adult flies are morphologically distinct; plumose arista on antenna, hatchet-shaped cell |
| muscid | lack bristles on hypopleuron myiasis flies piercing or sponging. house fly, face fly, stable fly, horn fly |
| Siphonaptera | Endopterygote.Eggs laid in the nestPupation in silken cocoon sexes feed on blood. Relatively specific. |
| Anatomy | Flattened LATERALLY setae, bristles, combs point backward piercing-sucking antennae small and in groove. apterous: no wings. genal: head pronotal: thorax Ocular bristle |
| Diseases | Oriental: murine typhus, plague. Human: plague Northern rat flea: plague |
| Tapeworm | Flea larvae infected by egg (OVUM). Infected larvae develops, is ingested by vertebrate. Larvae infects SI and grows. Anterior: SCOLEX. for attachment. 4 suckers, ROSTELLUM of hooks. Worm made of proglottids. Gravid/ripe with egg packets at end. |
| Stylate antennae Aristate | Stylus, postpedicel, pedicel, scape Arista, pedicel, scape |
| Spiracles of muscid | curvy opening, complete button, complete peritreme |
| Acari | Chelicerata, Class Arachnida. no antennae. Body= idiosoma. incomplete metamorphosis. Larva have 3 pr legs. |
| Integument | outer covering of ticks, tough and waterproof. |
| Capitulum | Mouthparts, which form a tube. 2 chelicerae are from it. Has sensory structures. |
| Mites | Very small. Most are free living, some are parasites Itch mite: mange Chiggers, scrub typhus. |
| Ticks | All parasitic. Survive without food, resist desiccation. Hypostome is mouth, pair of palps Festoons Capituli and palps can extend laterally |
| Ixodidae | Hard ticks. Hard, shiny SCUTUM like a shield Mouthpart visible in front of body. Pulvilli. Spiracle large, behind 4th leg. FEMALES LITTLE SCUTUM |
| Argasidae | Soft ticks. No scutum, rough integument. ventral mouthparts. Nymphs/adults no pulvilli. Spiracle in front of 4th leg. Longer feeders. |
| Venomous | Toxic. Bite, sting, a nd secretion. Used to subdue prey (spiders, scorpions), or defensively (millipedes, blister beetles, moths) |
| Scorpions | Sting on posterior of last segment. bulbous base, sharp curved barb injects venom. venom from oval glands. Ejected from lumen. 2 body seg (CT and abdomen) 8 legs, 1 pr chelicerae. |
| Spiders | Bite with chelicerae, modified as fangs. Poison glands near tip. Raise from groove, ram into prey. DANGEROUS: black widow (latrodectus mactans)red/orange hourglass on underside. Loxosceles reclusa: necrotic damage, fiddle-shaped mark on top of C.thor |
| Chilopoda | Centipedes. elongate, flattened dorsoventrally Many segments, 1 pr of legs. Front legs= poison jaws attached to venom glands. Last pair of legs is longer, for pinching. |
| Diplopoda | Millipedes. Rounded, each segment has 2 prs legs No venom. Secrete vesicating fluid from dorsolateral surface. Irritates, blisters |
| Urticating | Stinging, like hairs. Flexible hairs, rigid bristles and spines. irritate or are filled with poison from a gland at hair base. Cause burning sensation and inflammation. |
| Hymenoptera | Bees. Stingers modified ovipositor. |
| Was it worm like? was it firmly attached? Did it jump? Beetle like? Tiny? Fly? | Centipede, caterpillar. tick, louse flea blister beetle mite, imamture tick fly, mosquito, bee, wasp hornet. |
| Time of year? Time of day? where? Own pets? Fish, hunt, hike? | Spring/summer, arthropod. Night: mosq, bed bugs In: fleas, mites, bed bugs. out: flies, mosq, fire ants, chiggers Fleas, ticks, mites Ticks, chiggers, flies, mosquitos. |
| Garden or yard? Clean attic, garage, shed? Bats/birds? | Flies, mosq, fire ants, chiggers. Spider, scorpion Mites, soft ticks |
| Legs or feet Trunk Genitals Arms/hands head, neck, face | Flea, mosq, black fly, spider, centi, scorpion, fire ants -chig, BBs, scabies, ticks, lice, spiders, mites -scaies -mosq, flies, mites, midges, spiders, fleas cent, sand, wheel. -Mosq, black, midge, sand, lice, kissing, ddeer flies |
| Single lesion Few Multiple Scattered Grouped Linear (bed bugs, fleas, chiggers, fire ants) | -tick, spider, centipede, wheel bug, kissing -fleas, mosq, stable, horse/deer, kiss, sand -mosq, black, biting midge, fleas, lice, chig, seed ticks, mites, bed bugs, scabies. -mosq, deer horse, black, midge, head/body lice -fleas, pubic, chig, scabies |
Created by:
nrdelis
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