Based on Lemaire's descriptions, I feel they are all most likely Paradirphia lasiocampina. However, one in particular (#5) seems to far exceed the stated wingspan (males: 74-83mm; females: 88-103mm) by Lemaire.
Please offer comments by number to Bill Oehlke.
Much prior to 2012, Kirby Wolfe, Chris Conlan and Stefan Naumann have all looked at these specimens and have indicated they are all within variation of Paradirphia lasiocampina.
Based on recent DNA barcoding analysis (2012), I feel the moths on this page are more likely Lemaireodirphia guerreroiana. Bill Oehlke
1) Paradirphia lasiocampina male, 75mm, Guerrero, Mexico, 2280m,
courtesy of Kelly Price, tentative id by Bill Oehlke.
2) Paradirphia lasiocampina male, 77mm, Guerrero, Mexico, 2280m,
courtesy of Kelly Price, tentative id by Bill Oehlke.
3) Paradirphia lasiocampina male, 83mm, Guerrero, Mexico, 2280m,
courtesy of Kelly Price, tentative id by Bill Oehlke.
4) Paradirphia lasiocampina female, 95mm, Guerrero, Mexico, 2280m,
courtesy of Kelly Price, tentative id by Bill Oehlke.
5) Paradirphia lasiocampina male, 95.8mm (actual measurement), Guerrero, Mexico, 2280m,
courtesy of Kelly Price, tentative id by Bill Oehlke.
Please send comments by # to Bill Oehlke. Thanks for your time.