Unknown buzzing black bug with yellow legs

Unknown buzzing black bug with yellow legs

Observation - Unknown buzzing black bug with yellow legs. Description: I found this bug buzzing around my house one rainy night this week. When I first heard very loud buzzing I presumed I would find some kind of bee but was surprised to find this winged bug! It was approximately 2 inches in length, black with six yellow-ora

I found this bug buzzing around my house one rainy night this week. When I first heard very loud buzzing I presumed I would find some kind of bee but was surprised to find this winged bug! It was approximately 2 inches in length, black with six yellow-orange legs and what appears to be quite a sting! Buzzed like a bumble bee.

I am curious to know what it is as I have never seen one before; so would appreciate some help identifying it and any information on its ecology.

Many thanks :)