Genosyntype: one of a series of species upon which a genus is founded, no one species being mentioned as type.
Genus: 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: larva which, when walking, alternately elevate and straighten the middle of their body: opposed to rectigrade; q.v.
Geodephagous: = adephagous; q.v.
Geodromica: terrestrial Heteroptera 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.
Germanium: 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.