Zygænidæ (zije nide)

pl. [NL. (Leach, 1819), gæna: also wrongly called Anthrocerida. The family comprises a more or le definite and characteristic series of moths intermediate between the Bombycidæ and the Castniidæ. By most modern authors a section of the old family Zygænidæ is separated into a family Agaristidæ. The Zygænidæ proper have pectinate antennæ, rather narrow wings rounded at the tip, and a venation similar to the arctians. Their larvæ are short, hairy, and transform in cocoons composed entirely of silk or mainly of hair. The European forms belong mainly to Zygzæna, while the principal American genera are Procris, Harris in a, Ctenucha, Lycomorpha, and Glaucopis, the lat ter containing more than 100 South American species. 150 species, mainly South American under than Euchromia is another large genus, comprising more cris. Also Zygana, Zygænides, Zygænoidea, and Zygenides. 2. In ichth., a family of sharks, named from the genus Zygæna: now called Sphyrnidæ (which see). See cut under hammerhead.