EVERY state in the US has a Life Insurance Guarantee Fund, that in theory is supposed to operate somewhat like the FDIC does for banks. The laws vary a bit from state to state, but they do provide some some measure of protection.
Get the facts about your policy - a copy of it and some record that you paid premium and that it would still have been in force at the time the former company went insolvent. Then contact the fund in your state -- usually through the state insurance department in your state. Or contact the N'tl. Org. of Life & Health Insurance Guaranty Associations, which may still be in Herndon, VA - its phone number was (and may still be) 703-481-5206.