Part 95

Neurilemma: the external sheath of a nerve fibre.

Neuroblast: the large cell in the early embryo, from which the nervous system develops.

Neuromere: that part of a body segment pertaining to the nervous system.

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.

Nocturnal: species that fly or are active at night.

Nodal furrow: in Odonata; a transverse suture, beginning at a point in costal margin corresponding to the nodus, and extending toward inner margin.

Nodal sector: in Odonata; = media 2 (Comst.): arises from upper sector of arculus near nodus and extends to outer margin.

Node: a knot or knob: in the plural refers to the small segment or segment between thorax and main portion of abdomen in ants.

Nodiform: in the form of a knot or knob.

Nodicorn: with antennae that have the apex of each joint swollen.

Nodose -us: knotted or with knots; a body with one or more knotted parts a sculpture with almost isolated knots.

Nodule: a little knot, lump or node.

Nodulose -us -ate: with small nodes or nodules: a surface sculpture of knots or links, connected by an undulating line.

Nodus: in Odonata; a stout, oblique, short vein at the place where the anterior margin of the wings is sometimes drawn in.

Nopalry: a plantation of cacti for raising cochineal insects.

Normal: of the usual form or type: not out of the ordinary.

Notate: marked by spots: with a series of depressed marks as a sculpture.

Notched: indented, cut or nicked; usually a margin.

Notocephalon: in some aquatic Hemiptera, that part of the head which is apparent from a dorsal aspect.