Western yellowjacket
The western yellowjacket is a social wasp with a yellow and black body. It lives across the western half of North America and has spread to the Hawaiian Islands, where it is considered a major pest. Its colonies can grow very large in places without cold winters.1

Kako jo prepoznaš
- Yellow and black pattern, typical of social wasps in the genus Vespula1
- Most females have a continuous yellow ring around each eye, known as an eye-loop1
- A diamond-shaped black mark on the first tergum (the upper plate of the abdomen)1
- Nests are made of wood fibres and enclosed in a paper envelope, with an entrance tunnel of 10 to 30 cm at the bottom1
Pogosto zamenjujejo z: It is often misidentified as V. germanica, which has a similar diamond-shaped black mark. The continuous yellow eye-loop around each eye usually tells the western yellowjacket apart, though males often lack it.1
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Nevarnost za ljudi: BolečeLahko zelo boli, a skoraj nikoli ni resno.
Če piči
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Ostani varen
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- Pusti ji prostor. Če jo srečaš, ostani miren, počasi stopi nazaj in jo pusti, da gre svojo pot.
- Če te piči: ostani miren, ne premikaj se, pokliči številko za klic v sili (112, 000, 911) ali hitro pojdi v bolnišnico. Zapomni si, kako je izgledala, fotografija pomaga.
Ne preži nate. Strup uporablja, da ulovi hrano ali se zaščiti, in se veliko raje skrije. Več o varnosti
Kako velika je?
Kako dolga je?
krajša od tvojega mezinca
zmore preleteti celo nogometno igrišče v 16 sekundahKakšne velikosti je Western yellowjacket v primerjavi s TABO?
Samo matematika v tvojem brskalniku. Nič se ne shrani in nič se nikamor ne pošlje.
Kako hitra je?
Dejstva
Workers settle dominance within the nest by mauling, where one wasp chews on another that stays still.1
In Hawaii, the western yellowjacket has become so invasive that it is labelled a major pest.1
The nest is kept cleaner than those of many other social wasps, with waste, prey remains and dead larvae removed.1
Only the inseminated queen survives the winter, entering diapause (a resting state) until spring.1
Most foraging happens close to the nest, usually within about 335 metres, though some trips reach about 550 metres.1
Cold weather limits the number of western yellowjackets, but in places without cold winters their population can grow very quickly.1
Od kod so dejstva
- Vespula pensylvanica (Wikipedia (CC BY-SA 4.0))
- Vespula pensylvanica (iNaturalist): imena in razvrstitev.
- Venom Wiki: stopnja nevarnosti, tipična velikost in ocena hitrosti so naše lastne. Poglej, kako jih določimo: Kako ocenjujemo nevarnost.
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