it depends largely on where you live. if you're near museums or zoos that include a collection of live or preserved specimens, you might be able to find work as a collection manager or a caretaker. you will need at least a bachelor's in invertebrate zo/animal husbandry/museum curation/a related major.
if you live in an area of agricultural importance, like California or Hawaii or Madagascar, you can get a job working in pest exclusion which would include doing things like inspecting goods at a border station, or working in a lab identifying and maintaining specimens for research. you'll need a bachelor's in agricultural sciences for the former, and if you actually want to make any money at the latter you'll need a master's or doctorate.
i work in an ento lab at a student level and it does not pay for jack.
your other entomology career alternative is as a private businessman; breeding, rearing, and selling your favorite critters is a time-consuming but rewarding task. you could also become a private collector and sell preserved specimens like God of Insects.
no degree required, but you'll need a lot of independent study and experience to properly identify your specimens.
ultimately i would recommend against getting a bachelor's degree in entomology unless you are serious about going for post graduate studies. of the five ento bachelors i know, four of them work in retail and the fifth makes less than $30k/year in a position that goes nowhere.
a more general degree, like agricultural sciences or animal biologyspecializing in inverts, will increase the field of jobs for which youwill be eligible.