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Setshwantsho sa khathune sa Common backswimmer
Nom. 1069 ya 1 402

Common backswimmer

Notonecta glauca
Ka ga leina: Its common names come from the way it swims on its back, using its hind legs like oars in a boat.1
Ga e na kotsiGa e na kotsi go batho. Ga go na sepe se o tshwanetseng go tshwenyega ka sone.
Diboko le dikhukhwane Go lomaE ja: Nama
Kotsi go batho: Kotsi e nnyeJaaka go tlhabiwa ke notshe kgotsa go le kwa tlase. Ga e na kotsi go batho.

The common backswimmer is a small water insect that swims upside down, under the surface of ponds. It hunts other small water creatures and can fly between ponds when the weather is warm. It is the most common backswimmer in much of its range.1

E tshela kwa
Large parts of Europe, North Africa, and east through Asia to Siberia and China1
Yuropa
Gae
It lives under the water surface in ponds, and it is also the most widespread of the four British water-boatmen. In warm late summer and autumn it flies between ponds.1
Boleele
1,3 cm go ya go 1,6 cm (0,5 in go ya go 0,6 in)1
Lebelo le le kwa godimo
e ka nna 0,45 km/h (0,28 mph)
Go thuma, kakanyo fela
E ja eng?
It is a predator. It either waits for prey to pass by or swims and actively hunts it. It often feeds on mosquito (Culex) larvae at the surface, and mature females also dive to the bottom of shallow ponds to catch isopods (Asellus).1
Ka nnete!Setshwantsho sa Common backswimmer
Common backswimmer. Setshwantsho: ingridaltmann. CC BY 4.0, iNaturalist.

Tsela ya go e lemoga

  • Swims and rests on its back1
  • Body length is about 13 to 16 mm1
  • Females are larger than males1
  • Hind legs are fringed with hair and held out to the sides like oars when resting1
  • Body is covered in hairs, except on the head and legs1

Maatla a botlhole

Go loma

Botlhole bo tswa ka meno a yone fa e loma.

E kotsi go le kae go batho?

Kotsi go batho: Kotsi e nnyeJaaka go tlhabiwa ke notshe kgotsa go le kwa tlase. Ga e na kotsi go batho.

Fa e loma

  • Ya meriri e e tlhabang ya diboko: e tlose ka theipi e e kgomarelang, morago o tlhatswe letlalo. O se ka wa gotlha.
  • Fa e lomile: tlhatswa le go tsidifatsa. Batla thuso ya bongaka fa motho a ikutlwa a sa siama kgotsa a tswa madi bonolo.

Ka gale leletsa nomoro ya gago ya tshoganyetso pele (112, 000, 911). Se ke kaelo e e akaretsang ya thuso ya ntlha, ga se kgakololo ya bongaka. Motheo wa thuso ya ntlha

Nna o babalesegile

  • O se ka wa ama, wa tshwara kgotsa wa tshwenya phologolo ya naga, le fa e le e nnye, le fa e lebega e robetse kgotsa e sule.
  • E fe sebaka. Fa o kopana le yone, ritibala, boela morago ka bonya mme o e tlogele e tsamaye ka tsela ya yone.
  • Fa e nngwe e go loma: ritibala, o se ka wa tshikinyega, leletsa nomoro ya gago ya tshoganyetso (112, 000, 911) kgotsa o ye bookelong ka bonako. Gopola gore e ne e lebega jang, setshwantsho se a thusa.

Ga e go batle. E dirisa botlhole jwa yone go tshwara dijo kgotsa go itshireletsa, mme e rata go iphitlha go feta. Go le gontsi ka go nna o babalesegile

Kae mo lefatsheng?

AforikaAsiaYuropaAmerika BokoneAmerika BorwaAustralia le Oceania

E kgolo go le kae?

E telele go le kae?

Common backswimmer e ka nna 1,6 cm ka boleele (0,6 in)Thoro ya raese e ka nna 7 mm (0,3 in)Ledi la euro e le 1 e ka nna 2,3 cm (0,9 in)
khutshwane go feta monwana wa gago o monnye

Common backswimmer e kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sefetleng sa gago (browser). Ga go sepe se se bolokwang kgotsa se se romelwang gope.

E bonako go le kae?

go botlhokwa go itse

Dintlha

1

It breathes air but has no gills. It keeps a thin film of air around its body, which can last up to 120 days.1

2

It can tell prey from other backswimmers by the surface waves they make. Prey waves are between 70 and 140 Hz, while other backswimmers make waves below 40 Hz.1

3

Its air film reduces drag when it dives. Scientists use it as a model for reducing drag, with possible uses such as on ships.1

4

It can see in both day and night. Its pupil takes about 40 minutes to adjust to daylight and about 50 minutes to adjust to night light.1

Ya baitseanape ba botlhole

Leina la saense
Notonecta glauca
Setlhopha
Diboko le dikhukhwane
Lelapa
Notonectidae2
Lekoko
Hemiptera
Dikontinente
Yuropa
Masea
It reproduces in the spring, and young backswimmers, called larvae, live in the water.1
Kotsi go batho
1 / 5: Kotsi e nnye3

Kwa dintlha di tswang teng

  1. Notonecta glauca (Wikipedia (CC BY-SA 4.0))
  2. Notonecta glauca (iNaturalist): maina le thulaganyo ya mefuta.
  3. Venom Wiki: seelo sa kotsi, bogolo jo bo tlwaelegileng le kakanyo ya lebelo ke tsa rona. Bona kafa re di balang ka teng: Kafa re lekanyang kotsi ka teng.

Ntlha nngwe le nngwe mo tsebeng e e na le nomoro e e supang motswedi wa yone. Fa re dirile phoso, maitshwarelo, re barati ba diphologolo, e seng kgatiso ya saense. Re bolelele kwa [email protected] mme re tla e baakanya.

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Tse dingwe tsa setlhopha se se tshwanang: Diboko le dikhukhwane

Oak processionaryDiboko le dikhukhwaneE utlwisa botlhoko felaO se ka wa amaPine processionaryDiboko le dikhukhwaneE utlwisa botlhoko felaO se ka wa amaCommon bombardier beetleDiboko le dikhukhwaneGa e na kotsiBrown-tail mothDiboko le dikhukhwaneE utlwisa botlhoko felaO se ka wa amaMasked hunterDiboko le dikhukhwaneE utlwisa botlhoko felaPine-tree lappetDiboko le dikhukhwaneE utlwisa botlhoko felaO se ka wa ama

E tshela gape kwa: Yuropa

Common European adderDivaepara le diboloboloE tlhoka ngakaSpanish flyDiphologolo tse dingwe tse di botlhole go di ama kgotsa go di jaE tlhoka ngakaO se ka wa amaCommon waspDinotshe, diwasepe le dihoneteE utlwisa botlhoko felaEuropean hornetDinotshe, diwasepe le dihoneteE utlwisa botlhoko felaFire salamanderDigwagwa tsa botlhole, digwagwa tse dingwe le dinewtE utlwisa botlhoko felaO se ka wa amaWestern honey beeDinotshe, diwasepe le dihoneteE utlwisa botlhoko fela
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