Hello,

Thank you for your question, description, and clear photos.

I am sorry you have been stung several times by this insect.

Based on your photos, this insect appears to be some kind of spider wasp belonging to the family/group pompilidae. As indicated by their common name (spider wasp) they typically feed on spiders. Female spider wasps sting and paralyze spiders to bring back to their nests for their young. They are solitary wasps meaning they do not live in groups but adults live singly. They are not typically aggressive but can sting when handled or if they feel threatened. 

Spider wasps do not typically come indoors, but they may be accidentally flying inside or coming in through an opening. Spider wasps will sometimes use old or rotting wood for nesting sites. Those found indoors can be swatted or lightly sprayed with a ready-to-use household aerosol insecticide. Do not use lawn and garden liquid concentrate insecticides indoors. We typically do not recommend using insecticides indoors when at all possible to help minimize exposure. The risk of exposure to toxic materials is much higher indoors than outdoors.

If and when choosing an insecticides for use indoors, carefully read the product label. Look for instructions on how to apply indoors. Check to see that your pest is listed. Read and follow pesticide label directions carefully. Store pesticides only in the original container and out of reach of children and pets. Keep children and pets out of sprayed areas until the spray has dried and the room aired. Do not use insecticides in any way that might contaminate food or food handling surfaces. Insecticides can be classified as residual or non–residual, a general indication of how long the insecticide will remain active after it has been applied. Residual insecticides persist for several hours to several weeks and are used for accidental invaders and household residents such as ants, cockroaches and fleas. Residual insecticides may come as sprays, dusts or baits. In most cases the label will state that the product controls pests on contact and for several days or weeks after application.

I would be on the lookout for any nests which may take the form of tunnels in wood or soil, or mud cells attached to objects. Also look for gaps/cracks that can be sealed, window screening repairs, or door weather-stripping that might be wearing out. The best control option is identifying where the wasps are coming from and managing their entry point to prevent them from coming indoors.

If these wasps continue to be an issue you may want to contact a professional pest control company for further help and control options.