Yellow Jackets / Hornets
Those bees that really do not look like bees, and that are darting in and out of an entrance area are Yellow Jackets. These are a Vespid wasp and are a member of the hornet family (vespula hymenoptera). They can be very aggressive when disturbed.
Suggestion to the homeowner who has these in their structure... call us!
This is a bald-face hornet nest sent from Little Rock, Arkansas. These hornets are not inhabitants of the the north Texas area. The Yellow jacket hornet (below) is very common to north Texas, and we remove quite a few of these each year. Notice that they are not the same shape as the bald-face. Yellow jackets are mostly ground- or structure-dwellers.