yoov tshaj cum yog cov kab me me uas nyias ob txhais ceg thiab ntev proboscis. Lawv feem ntau tsis meej pem nrog yoov tshaj cum, tab sis muaj qhov sib txawv tseem ceeb ntawm lawv. Leej twg yog yoov tshaj cum? Lawv nyob qhov twg? Dab tsi hem kev sib ntsib nrog lawv rau ib tus neeg?
Mosquitoes: piav qhia thiab hom
Raws li ntau yam kev kwv yees, muaj li ntawm 300 txog 1000 hom yoov tshaj cum. Nyob rau tib lub sij hawm, cov ncauj lus kom ntxaws txog lawv yog xyaum tsis pom nyob rau hauv pej xeem sau. Lawv yog cov kab uas muaj ob-tis ntev-whiskered los ntawm tsev neeg npauj npaim.
yoov tshaj cum yog cov kab me me uas muaj xim daj lossis grey-xim av. Lawv muaj ob txhais ceg ntev, elongated oval tis, qhov loj ntawm qhov yuav luag sib npaug rau qhov ntev ntawm lub cev. Kab yog npog nrog cov plaub hau me me thiab saib me ntsis shaggy. Cov plaub hau txawm loj hlob raws ntug tis.
Mus yoov tshaj cum muaj qhov muag dub. Lawv lub qhov ntswg txuas ntxiv mus rau pem hauv ntej thiab tig mus rau hauv proboscis, uas lawv pub. Txiv neej yoov tshaj cum yog cov kab uas tsuas yog herbivorous. Lawv haus paj nectar, cog cov kua txiv, thiab aphids, kua txiv qab zib secreted los ntawm aphids. Tsuas yog poj niam tom lawv xwb. Nrog lawv cov proboscis, lawv tho cov tawv nqaij ntawm cov tsiaj thiab nqus cov ntshav.
chaw faib khoom
yoov tshaj cum nyiam thaj chaw uas muaj huab cua kub thiab av noo, yog li qhov kev sib txawv loj tshaj plaws ntawm cov tsiaj tau pom nyob rau hauv thaj chaw sov thiab subtropical. Lawv pom nyob rau hauv Balkans, Southern Europe, South thiab Southeast Asia, Middle East, North thiab Central Africa.
Txawm li cas los xij, qee hom tsiaj nyob hauv thaj chaw huab cua sov. Nyob rau sab qaum teb Asmeskas, lawv muaj nyob hauv Mexico, Tebchaws Asmeskas thiab txawm tias Canada. Nyob rau hauv Eurasia, sab sauv txwv ntawm lawv thaj chaw mus txog Fabkis, Mongolia, Georgia, lub Caucasus, Abkhazia thiab Sochi.
Kab tsis zam qhov txias txias, yog li lawv tsis nyob hauv Arctic thiab Antarctic. Lawv kuj tsis tuaj ntawm ntau lub tebchaws Pacific, suav nrog New Zealand.
Reproduction
yoov tshaj cum muaj plaub theem:
- egg;
- larva;
- chrysalis;
- imago.
Tus poj niam nteg qe rau hauv qhov chaw txias thiab ntub nrog kev nkag mus rau cov as-ham. Feem ntau, ib ntus "tsev" rau lawv yog cov av noo, burrows ntawm cov nas me thiab lwm yam kab. Nyob rau hauv lub chaw kuaj mob, lub excrement ntawm noog thiab luav yog ib qho chaw zoo rau lawv. Ib tug neeg nteg qe 30-60 qe ib zaug.
Rau qhov kev loj hlob thiab kev vam meej ntawm yoov tshaj cum yav tom ntej, xav tau ntshav, uas yog ib txwm coj los ntawm leej niam uas saib xyuas lawv. Lub qe theem kav los ntawm 4 hnub mus rau ib lub lis piam, cov ntsiab lus no txawv nyob ntawm seb hom yoov tshaj cum. Thaum pib ntawm lub neej, tshwj xeeb horny outgrowth yog nyob rau ntawm lub taub hau ntawm cov me nyuam, tsim los qhib lub plhaub muaj zog ntawm lub qe. Nws poob tam sim ntawdtom qab yug me nyuam.
Ib tug yoov tshaj cum yog ib lub teeb xim uas zoo li tus kab ntsig me me. Nws muaj plaub theem ntawm txoj kev loj hlob, thaum lub sij hawm qhov tsos thiab loj hloov. Kev hloov pauv mus rau txhua theem tshiab yog nrog rau molt.
Thaum kawg, cov larvae (thaum lub Tsib Hlis-Lub Rau Hli) ua pupae. Thaum lub sij hawm no, kab tsis txav thiab tsis pub. Tom qab ob lub lis piam, lawv hloov mus ua neeg laus. Qhov no tshwm sim nyob rau tib lub sijhawm, ntau yoov tshaj cum yug ib zaug, ua rau tib neeg thiab tsiaj txhu tsis yooj yim.
Qhov txawv ntawm yoov tshaj cum
yoov tshaj cum feem ntau tsis meej pem nrog yoov tshaj cum. Txawm nyob hauv Is Taws Nem, cov ntaub ntawv hais txog lawv feem ntau nthuav tawm raws li cov neeg sawv cev ntawm tib hom. Qhov no yog qhov tseeb tiag. yoov tshaj cum, txawm hais tias lawv nyob rau ob-tis ntev-whiskered kab, sawv cev rau ib tsev neeg nyias. Lawv kuj muaj ob txhais ceg ntev thiab proboscis, thiab tseem pub tsuas yog cov kua txiv hmab txiv ntoo. Nov yog qhov uas qhov sib xws tseem ceeb kawg.
yoov tshaj cum txawv ntawm qhov tsos, ua tsaug rau lub teeb ntxoov xim, lub cev plaub hau. Hauv qhov loj, lawv ncav cuag li 3 hli, thaum yoov tshaj cum loj hlob mus txog 5 hli. Nyob rau hauv ib qho chaw ntsiag to, tis ntawm yoov tshaj cum yog me ntsis tsa, nyob ntawm lub kaum sab xis. Hauv cov yoov tshaj cum, ntawm qhov tsis sib xws, lawv quav sib npaug rau lub cev, pw tag nrho raws nraub qaum.
Qhov ntau ntawm yoov tshaj cum, txawm tias nws mus txog thaj tsam huab cua, tseem nqaim dua. Lawv yog cov thermophilic, yog li lawv nyob hauv cov teb chaws kub sab qab teb. yoov tshaj cum nyob txhua qhov chaw tsuas yog Antarctica. Lawv nrawm dua thiab nrov nrov thaum lub sijhawmDavhlau emit ib tug annoying buzz, squeak. yoov tshaj cum tsis zoo thiab qeeb flyers, lawv nyob ntsiag to heev. Hauv tebchaws Ltalis, lawv txawm tau txais lub npe menyuam yaus uas txhais tau tias "tom qab ntsiag to."
yoov tshaj cum, tsis zoo li yoov tshaj cum, tsis nqa cov kab mob malaria, tab sis kis cov neeg raug tsim txom nrog lwm cov kab mob. Ua ntej plunging rau hauv daim tawv nqaij nrog lawv cov proboscis, lawv ua ob peb dhia hauv kev tshawb nrhiav qhov chaw zoo tshaj plaws los tom. yoov tshaj cum tsis dhia, tab sis tom tam sim ntawd, ces nkag los ntawm tus tswv tsev lub cev.
yoov tshaj cum
Nws zoo dua tsis txhob kuaj ntawm koj tus kheej daim tawv nqaij seb yoov tshaj cum yog dab tsi. Kab yog ib qho txaus ntshai tshaj plaws nyob hauv lub ntiaj teb, vim nws nqa cov kab mob ntawm cov kab mob loj. Technically, yoov tshaj cum tsis tom, tab sis pierces ntawm daim tawv nqaij thiab txhaj tshuaj tshwj xeeb rau anesthetize thiab tiv thaiv cov ntshav txhaws. Qhov no muab sijhawm rau nws haus dej kom tsis pom kev thiab ya mus.
Qhov zoo tshaj plaws, kev sib cuam tshuam nrog nws xaus nrog khaus thiab khaus ntawm tom. Tab sis nrog rau cov qaub ncaug ntawm yoov tshaj cum, kab mob feem ntau nkag mus rau tus tsiaj lub cev. Kab tuaj yeem ua rau mob dermatitis, yoov tshaj cum kub cev, leishmaniasis, bartonellosis, roj hmab rwj thiab lwm yam kab mob.
yoov tshaj cum yog tshwm sim nyob rau thaj tsam subtropical ntawm Lub Ntiaj Teb Qub: los ntawm cov cheeb tsam yav qab teb ntawm Portugal thiab sab qaum teb ntawm Africa, mus rau Is Nrias teb thiab Pakistan. Leishmaniasis tshwm sim nyob rau ntau tshaj 80 lub teb chaws thoob ntiaj teb, tshwj xeeb tshaj yog nyob rau hauv Is Nrias teb, Bangladesh, Brazil, Sudan, Ethiopia, Saudi Arabia thiab Peru.
