Chalastrogastra: the saw-flies: a group of Hymenoptera.
Chalceous: brassy in color or appearance.
Chalybeate: steely in appearance.
Chalybeous: metallic steel blue.
Channelled: a surface, with deep grooves or channels.
Chaperon: =clypeus or clypeus anterior.
Chaplet: a little crown; a circle of hooks or other small processes terminating a member or appendage.
Character: a quality of form, color or structure.
Cheek: see gena.
Chela: the terminal portion of a limb bearing a lateral movable claw like that of a crab; specifically applied to the feet in some Parasitica in which the opposable claw forms a clasping structure.