Ctenidium: a comb-like structure occurring on any part of an insect.
Cubital: referring or belonging to the cubits.
Cubital cell: the wing area between the cubits and anal vein; in the plural, all the cells bounded anteriorly by the cubits or its branches (Comst.); in Diptera (Schiner), = radial 3 (Comst.), = 3d posterior cell (Loew); in Hymenoptera (Norton), = radial 3, 4 and 5 (Comst.).
Cubital forks: the branching or points of separation of the branches of the cubits.
Cubital nerve or vein: see cubits.
Cubitus: of Comstock, is the 5th in the series of longitudinal veins extending from base, and usually two branched before reaching outer margin: in Orthoptera; = the internomedian and ulnar: in Neuroptera, a main longitudinal vein next behind the medius and before the anal: the tibia of the anterior leg.
Cuckoo spit: liquid in the form of bubbles produced by members of the family Cercopidae and which often conceals the producer.
Cucullate: hooded; somewhat hood-shaped.
Cucullus: a hood: see capillitium.
Cuilleron: see alula.