Calyx: the cap or crown of the mushroom bodies of the procerebrum: see also egg-calyx.
Campanulate: bell-shaped: more or less ventricose at the base and a little recurved at the margin.
Campestral: applied to species inhabiting open fields.
Campodeiform: applied to larval forms which, in their early stages at least, resemble Campodea: = leptitorm.
Canadian zone: is that part of the boreal region comprising the southern part of the great transcontinental coniferous forests of Canada, the northern parts of Maine, New Hampshire and Michigan, and a strip along the Pacific Coast reaching south to Cape Mendocino and the greater part of the high mountains of the United States and Mexico. In the east covers Green. Adirondack and Catskill Mountains and the higher mountains of Pennsylvania, West Virginia, Virginia, western North Carolina and eastern Tennessee. In the Rockies extends continuously from British Columbia to western Wyoming and in the Cascades from British Columbia to southern Oregon with a narrow interruption along the Columbia River.
Canaliculate: channelled; longitudinally grooved, with a deeper concave line in the middle.
Cancellate: cross-barred: latticed: with longitudinal lines decussate by transverse lines.
Canescent: hoary, with more white than gray.
Canine teeth: applied to the sharp and conical teeth of mandibles in predatory species: = dentes caninae.
Cantharidin: the substance that gives the meloid beetles their blistering power composition, C10H12O4 (von Furth).