USED IN ENTOMOLOGY. 63 



Homologous: implies that organs are identical in general structure and 

 origin, though they may have developed in different ways for special pur- 

 poses : see analogous. 



Homomorpha: insects in which the larvae resemble the adults. 



Homonomous: pertaining to homology of parts arranged on a transverse 

 axis : similarly developed and of equal function. 



Homonym: a name similar to or like another already used for a species in 

 the same genus, or for a genus in the same kingdom : such names are said 

 to be preoccupied. 



Homonymous: where the same name is applied to different conceptions. 



Homophonous: words differently written but indistinguishable in sound, ap- 

 plied to different conceptions. 



Homoplastic: implies that organs, similar in situation and purpose, are not 

 structurally the same, or have not the same origin. 



Homoptera: an ordinal term applied to those Hemiptera in which the pri- 

 maries are of the same consistence throughout. 



Homotenous: retaining the primitive form: applied to insects without or 

 with an incomplete metamorphosis. 



Homotype: is a specimen named by another than the author after compari- 

 son with the type. 



Honey dew: a sweetish excretion produced by certain insects, notably Aphids 

 and Coccids, and exuding from the surface of some galls. 



Honey tubes: small tubes or tubercles on the abdomen of plant lice and 

 other insects through which a sweetish liquid or honey dew is excreted : 

 siphonets ; siphuncles ; cornicles. 



Hood: of the maxilla is the galea; q. v. : in Tingitidce the elevated portion 

 of the prothorax, often covering the head. 



Hooked hairs: = gathering hairs; q. v. 



Horismology: see orismology. 



Horizontal: said of wings when held parallel to the horizon. 



Horn: a pointed chitinous process of the head: in the plural form applied to 

 the antennas ; q. v. 



Host: the individual infested by or upon which a parasite grows: also ap- 

 plied to the maker of a cell or other structure in which guest flies or other 

 insects take up their abode. 



Hudsonian zone: is that part of the boreal region comprising the northern 

 part of the great transcontinental coniferous forests. In the eastern 

 United States restricted to the cold summits of the highest mountains, 

 from northern New England to western North Carolina : in the west it 

 covers the higher slopes of the Rocky and Sierra-Cascade systems. 



Humeral: relating to the shoulder or humerus. 



Humeral angle: in Lcpidoptcra, that angle of the wings at the base of costa, 

 near the point of attachment to the body : in Coleoptera, the outer anterior 

 angle of elytra : in Orthoptera, the obtusely rounded angle formed by the 

 deflection of the sides of the pronotum from the dorsum. 



Humeral bristles: in Diptera, are situated on the humeral callus. 



Humeral callus: in Diptera, is a rounded callus forming the anterior supe- 

 rior angle of the mesothorax. 



