Quant au bouleau, a priori c'est pas bon...
"Of the two Epiphora species that are generally available, mythimnia is probably the easier one to breed. At least they do accept more different food plants then bauhiniae. Besides Ceanothus and Zizyphus, they will also do well on other Rhamnaceae like Rhamnus species. Epiphora bauhiniae does not grow well on Rhamnus. Reports of Betula used as food plant are erroneous. Young caterpillars will reluctantly start to eat. However mortality is so high that none of the caterpillars will make it to the final instar. If you do not have Rhamnaceae, then you should go for Euphorbiaceae. Croton is a natural host. Trying other plants out the spurge family like Homolanthus or even Euphorbia makes a lot more sense then Betula. Whatever you give them to eat, do not overcrowd, keep warm and dry with a medium humidity for best chance of success. They need five weeks of growth from first instar to cocoon."