394 GLOSSARY. 



Ochreous, yellow with a slight tinge of brown. 



Orbicular, round. 



Order, the subdivision of a class. 



Osmateria, scent-organs of the larvas of the genus Papilio. 



Oval, broadly elliptical. 



Ovate, egg-shaped. 



Overlaid, heavily sprinkled with scales of a different color from the 



ground color ; clouded ; overcast. 

 Palpi, in butterflies, the three jointed organs beneath the head 



between which the tongue is coiled like a watch-spring. 

 Piceous, pitchy ; the color of pitch. 

 Pile, very minute, short hairs. 

 Pilous, having long, sparse hairs. 

 Polymorphous, applied to a species existing in several different forms 



as to color, markings, or size. 

 Porrect, straight out. 



Posterior angle, the angle formed by the outer margin and the pos- 

 terior or hind margin of the fore wing. 

 Posterior margin, that portion of the fore wing-s which is opposite 



the costa. 



Proboscis, the tongue, or sucking organ. 

 Prolegs, the fleshy legs of caterpillars. 

 Pronotum, the anterior part of the covering of the thorax; the 



covering of the thorax. 

 Prothorax, the first division of the thorax, to which the first pair 



of legs are attached. 



Pruinous, hoary ; covered with a whitish powder. 

 Pubescent, coated with fine hair or down. 

 Punctured, marked with small impressed dots. 

 Pupa, the third stage of an insect, counting the egg the first ; the 



chrysalis. 



Pupate, to assume the pupa form. 

 Pupil, of an ocellus, the central point. 

 Quadrangular, having four angles. 

 Quadrate, square, or nearly square. 

 Remote, separate ; not near together. 

 Reniform, kidney-shaped. 

 Reticulate, resembling net-work. 



Retractile, capable of being exserted or drawn in at pleasure. 

 Retuse, ending in an obtuse sinus. 



