USED IN ENTOMOLOGY. 57 



Genu: knee; the joint between femur and tibia. 



Genus: an assemblage of species agreeing in some one character or series of 

 characters ; usually considered as arbitrary and opinionative, though some 

 consider it a natural assemblage. 



Geometrid: larvae which, when walking, alternately elevate and straighten 

 the middle of their body: opposed to rectigrade; q. v. 



Geodephagous: = adephagous ; q. v. 



Geodromica: terrestrial Hctcroptcra in which the antennae are not concealed. 



Geophilous: living on the ground: species that live on the surface or come 

 freely into contact with it. 



Germarium: an ovary: that portion of an ovarian tube containing the cell 

 elements. 



Germ-ball: reproductive cells in larvae from which, exceptionally, young may 

 develop as buds. 



Germ-band or Germinal band: that portion of a young embryo which is to 

 become the future insect, when it is in the form of a band or strap and 

 may or may not show the division into the future segments. 



Gerontogeic: belonging to the old world: see neogeic. 



Gibba: a rounded protuberance or prominence. 



Gibbous: hump-backed; protuberant: said of a macula when it resembles a 

 moon more than half full. 



Gibbus: when the whole surface forms a hump or obtuse cone. 



Gills: respiratory structures which function in water; distinguished as true 

 or blood gills where contained blood conveys the absorbed oxygen from 

 the gill to the tissues, and as tracheal gills when this conveyance is by 

 contained tracheae. 



Gilvus: = flavus ; q. v. 



Ginglymus: a hinge joint that permits flexion in one plane. 



Gizzard: a pouch-like structure between the crop and chylific ventricle fur- 

 nished with chitinous teeth or plates, in which the food is prepared for the 

 digestive juices by grinding or merely sifting = cardia. 



Glaber -rous smooth ; free from all vestiture. 



Gland: a cellular sac which separates or secretes from the blood specific 

 portions to produce characteristic products e. g., wax, saliva, silk, etc. 



Gland-bearing prominence: in Diaspina, a prominence on the margin, bear- 

 ing a gland opening on the dorsal surface. 



Gland orifice: in Coccida, the external opening through which a gland pours 

 its secretions. 



Gland spines: in Coccidce, spiny appendages, each of which is supplied with 

 a single gland whose opening is at the tip. 



Glandular: having the character or function of a gland: used as descriptive 

 of specialized hairs, spines or other processes. 



Glassy: transparent; glass-like in appearance. 



Glaucus: shining sea-green: whitish blue inclining to gray lavender. 



Globose: formed like a globe or sphere. 



Globulin: an albumenoid protein compound formed in the blood of insects. 



Glochis: a barbed point. 



