(Spilogale gracilis) and eastern spotted skunks (Spilogale putorius) cannot mate because the eastern spotted skunks are known to breed in late winter, while western spotted skunks breed in fall. Then there is the case two species of crickets, the spring field cricket (Gryllus veletis) and fall field cricket (Gryllus pennsylvanicus). While spring field crickets mature in spring, fall field species mature in fall.
Cicadas (Magicicada septendecim)
Cicadas of the species Magicicada septendecim, which are found in the United States, become adults on 17-year cycles.
Malaysian orchid (Dendrobium anosmum)
Malaysian orchids of the species Dendrobium anosmum are found from Sri Lanka and Indochina to New Guinea sunoochi
