Neuroptera: nerve-winged: an ordinal term applied to insects with four net-veined wings; mouth mandibulate: head free: thorax loosely agglutinated; metamorphosis complete: in its older use, the term applied to all net-veined insects irrespective of metamorphosis or thoracic structure.
Neuropteroidea: like the Neuroptera in the wide sense; applied to those living insects included by Linnaeus in his Neuroptera; also to those extinct forms which have a general resemblance to them.
Neurospongium: a granular matrix in the periopticon of the insect eye.
Neuter: the term applied to workers or undeveloped females in some Hymenoptera: indicated by * or *, an imperfect form of Venus sign.{Scanner's comment: I have no characters to represent the symbols. One is like the normal female (Venus) sign, but with no cross stroke on the downward stroke. The other is the symbol for Mercury or of Hermaphroditus, like a Venus sign crowned with crescent horns.}
Nidificate: to nest: applied when eggs are placed in a prepared receptaculum.
Niger: black.
Nigricans: black, tinged with gray.
Nits: the eggs of sucking lice; specifically when attached to a hair: in general, though rarely, applied in the singular to an egg.
Nitidus: shining: applied to a highly polished, smooth surface.
Niveous -eus: snowy white.