USED IN ENTOMOLOGY. 



89 



Nopalry: a plantation of cacti for raising cochineal insects. 



Normal: of the usual form or type: not out of the ordinarj'. 



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



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



Notocephalon: in some acjuatic Hemiptera. that part of the head which is 



apparent from a dorsal aspect. 

 Notodont: with toothed backs: applied to a series of moths whose larvse are 



more or less conspicuously humped on dorsal surface. 

 Notopleural suture: = dorso-pleural suture; q. v. 



Nototheca: that part of the pupa covering upper surface of abdomen. 

 Notum: the dorsal or upper part of a segment: ^ tergum. 

 Nucha: the upper surface of the neck connecting head and thorax. 

 Nucleate: with, or having a nucleus. 

 Nucleolus: the .small portion of matter in the nucleus most readily affected 



by staining fluids. 

 Nucleus : a well-defined, differentiated, round or oval body imbedded in the 



cell contents. 

 Nude -us: naked: a surface devoid of hair, scales or other vestiture. 

 Nuditas: = nudity. 



Nudity: the state of being naked or bare of vestiture. 

 Nurses: worker ants or worker bees which care for the eggs, larvae and 



pupa;, but do not forage, the latter function being taken up later, when nurs- 

 ing is given up. 

 Nutant: nodding; the tip bent toward the horizon. 

 Nutritive chamber: an enlarged section of ovarian tube, filled with granular 



nutritive material used in developing the egg cells. 

 Nymph: the larval stage of insects with incomplete metamorphosis: applies 



also to their pupal stage, and sometimes used as =; pupa. 

 Nympha inclusa: = coarctate pupa; q. v. 

 Nymphipara: applied to insects that bear living young in an advanced stage 



of development : see also pupipara. 







Ob-: as a prefix, means inversely. 



Obconic: conic, with the apex pointing downward. 



Obcoidate: inversely heart-shaped, with the point applied to the base of an- 

 other object or pt-rt. 



Obese -us: unnaturally distended: usually applied to the abdomen. 



Oblate: flattened; applied to a spheroid of which the diameter is shortened 

 at two opposite ends. 



Oblique: any direction between perpendicular and horizontal. 



Oblique vein: in Odonata; an apparent cross-vein situated between Mj and 

 Rs, distad to the level of the nodus and inclined obliquely, from its front 

 end, backward and outward ; in reality the basal part of Rs. 



Obliterate: nearly washed out; indistinct. 



Oblong: longer than broad. 



Obovate: inversely egg-shaped: the narrow end downward. 



