Ischnocanaba | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Lepidoptera |
Family: | Heliozelidae |
Genus: | Ischnocanaba |
Species: | I. euryzona |
Binomial name | |
Ischnocanaba euryzona Bradley, 1961 | |
Ischnocanaba is a monotypic moth of the Heliozelidae family described by John David Bradley in 1961. Its only species, Ischnocanaba euryzona, described by the same author in the same year, is found on Guadalcanal. [1]
In formal language theory, a context-free grammar (CFG) is a formal grammar whose production rules can be applied to a nonterminal symbol regardless of its context. In particular, in a context-free grammar, each production rule is of the form
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