Insect and Spider Identification: CLOSED: Help ID these flying bugs in white fluffy cocoon, 1 by uglymotherpluck

uglymotherpluck wrote:
I found this white fluffy cocoon on the back of a papaya leaf, so I put it in a jar w/ plastic wrap on top -poked a few tiny holes ( thank God they weren't any larger! ) and left it for a day or 2 and found hundreds of these flying bugs in it! I killed them cause I thought they were bad news, but maybe not? I live in the Virgin islands. I'd like to know if I should be keeping an eye out for these.