The first is changing Hanno Blue Hemiargus hanno to Ceraunus Blue Hemiargus ceraunus. The identity of the Cuban species has changed over the years in the various publications that I have been able to check as follows:
1975, Riley – Hemiargus hanno filenus
1994, Smith, Miller & Miller - Hemiargus hanno filenus
1999, Alayo & Hernández - Hemiargus hanno filenus
2004, Hernández – Cyclargus ceraunus filenus
2011, Barro, Núñez & Larramendi - Hemiargus hanno filenus
Current thinking is that Ceraunus Blue Hemiargus ceraunus is a N & C American species that extends south as far as Panama and through the Greater Antilles (including Cuba and the Isla de Juventud) as far as Hispaniola whilst Hanno Blue is a S American species (range uncertain) also found in the Lesser Antilles and extending as far as north as Puerto Rico. Whether this will be the end of the story who knows?
Melanie Lalonde (University of Manitoba) has however recently clarified the taxonomy of the Junonia species in North America in her MSc thesis (Lalonde, M. M. L. 2016) using molecular and morphological data. Tropical Buckeye has been reassigned as Junonia zonalis, and Mangrove Buckeye has been reassigned as Junonia neildi. Of course published books cannot be changed but websites can and so I have done so here. Hopefully the fact that the latest scientific names get away from the genoveva/evarete confusion of recent decades will lead to a period of stability in names. In the American Southwest, Common Buckeye Junonia coenia has now been split into J. coenia and J. grisea. Lalonde is continuing her research into Junonia and perhaps we can expect further revelations in the future.