94 EXPLANATION OF TERMS 



Ova glebata: eggs laid or concealed in lumps of dung. 



Ova imposita: eggs laid in the substance that is to serve as food for the 



larva. 



Oval: egg-shaped, with both ends similar. 

 Ova pilosa: eggs that are covered with hair; usually from the abdomen of 



the female. 

 Ovarian tube: a tubular structure in which are developed the cells forming 



the future ova : a single one of the mass which, taken together, form the 



ovaries. 

 Ovaries: a mass of ovarian tubes, lying one on each side of the body cavity 



of the female, in each of which tubes eggs or ova are developed : the indi- 

 vidual tubes of an ovary all converge to one oviduct. 

 Ovariole: an ovarian tube; q. v. 

 Ovary: singular of ovaries; q. v. 

 Ovate: in outline, egg-shaped or oval. 

 Oviduct: the tube through which the egg passes from ovarian tubes into 



vagina : sometimes used in the sense of ovipositor ; q. v. 

 Oviform: egg-shaped. 



Oviparous: where reproduction is through eggs laid by the female. 

 Oviposition: the act of depositing the eggs. 

 Ovipositor: the tubular or valved structure by means of which the eggs are 



placed ; usually concealed ; but sometimes extended far beyond the end of 



the body. 



Oviscapt: = ovipositor; q. v. 

 Ovivalvule: in Ephemeroptera; is an appendage of the female reproductive 



organs. 

 Ovoviviparous: when living young are born from eggs which are hatched 



in the body of the parent. 



Pacific coast humid area: is that faunal area of the transition zone com- 

 prising the western parts of Washington and Oregon between the Coast 

 Mountains and Cascade range; parts of northern California and most of 

 the coast region from near Cape Mendocino south to the Santa Barbara 

 Mountains. To the south and east it passes into the arid transition and 

 in places into the upper Sonoran. 



Pad: the pulvillus, or that part of it which is capable of extension and re- 

 traction in some Coleoptera. 



Paddle: the flattened joints of posterior tarsi in aquatic Hemiptcra. 



Paedogenesis: reproduction in the sexually immature or larval stage. 



Paedogenetic: reproducing in the sexually immature or larval stage. 



Pagina: the surface of a wing: P. superior, is the upper surface; P. inferior, 

 the lower surface: in Orthoptcra, the external flattened surface of the 

 caudal femora. 



Pagiopoda: Hcteroptcra, in which the posterior coxae are not globose and 

 the articulation is a hinge joint: see trochalopoda. 



Pagiopodous: those Hctcroptera which have the coxae of the hind legs 

 hinged and the femora grooved. 



