The answers slightly depends on whether you include all killing methods.
Surely, mosquitos that spread malaria kill more people than any other insect, but technically, that's the malaria, not the insect itself.
Locusts swarms destroy crops causing famine and thus also death, but will only do so when in very large numbers. In this case, the insects themselves are responsible, but only indirectly. I think bees kill most when it comes to stings, but the victims are usually allergic to bee stings. The giant Asian hornet seems to have the nastiest sting out there. It can be lethal even to people that are not allergic, but causes less fatalities than the bee stings (probably occurs less).
So, in pure numbers: mosquitos, in (direct or indirect) responsibility: bees.
the thing is there is a different amount every year so there is no real answer
Hippos are considered to be more dangerous to humans than rhinos. Hippos are responsible for more human fatalities each year due to their aggressive and territorial nature, while rhinos are known to be more solitary and less likely to attack unless provoked.
Other People!
Jaguars normally kill around 1-3 people every year.
The most dangerous animal on earth is the lowly mosquito. Mosquitoes are responsible for more deaths than all the other animals combined, including deaths caused by other humans. This little blood sucker can transmit such deadly diseases as malaria, yellow fever, several forms of encephalitis, dengue fever, West Nile virus and several others. It is estimated that between 750,000 and a million people (or more) die each year world wide due to diseases transmitted by the mosquito.
by not being stupid...stupidity kills more people every year then anything esle
sharks. if your killed by a hair dryer then it must be suicide.
Tse tse flies kills 31 people every year.
Currently the mosquitos kills more people every year than any other animal.
Breast cancer kills more womenthan heart disease.
Africanized honey bee ( also known as killer bee ), kills 40 people every year.
tiger
The mosquito, which through disease it carries, kills many people every year.
coconuts kill more people! its surprising ah?
air pollution kills 4, 400 people in china every year. so think about it, 4, 400 get polluted every year in china which means there is allot of other people dying out there. so about 10, million people every year!!!!!
There are more people killed each year from a 22lr than any other gun!! There are more people killed each year from a 22lr than any other gun!!
to keap the world in balance