Callosamia securifera?

Hi Reverend,
As far as I know, the males of Callosamia securifera are completely diurnal and do not fly at night and would not be attracted to lights. Female Callosamia secruifera are occasionally taken at lights.
Both males and females of Callosamia angulifera fly at night and both genders are taken at lights.
Callosamia promethea males are also diurnal and do not fly at night.
Hence, by process of elimination, assuming you attracted these males at lights, the male depicted is Callosamia angulifera. It is quite difficult to distinguish between angulifera and secrufera males, but the darker subterminal area of the hindwing in your specimen is also more characteristic of angulifera, so I would classify them as angulifera.
You are correct that securifera are sometimes observed inland, and you are not out of their range. You can actually expect to encounter all three Callosamia species in your area with females of all species responding to lights, but only angulifera males responding to lights.
Bill Oehlke
PS: I have sent you a personal message.