Crocus: =croceous.
Crook: the hook or recurved tip of the antenna in Hesperidae.
Crop: the dilated portion of the alimentary canal behind the gullet which serves to receive and hold the food previous to its slower passage through the digestive tract: = ingluvies.
Crotchets: the curved spines or hooks on the prolegs of caterpillars and on the cremaster of pupae.
Crown: the top of head in Lepidoptera; also used as = coronet or corona.
Cruciate: shaped like a cross; applied to wings when the inner margins lie one over the other; or to incumbent wings that overlie only at the apex: in Diptera, applied to bristles when they cross in direction.
Cruciato-complicatus: folded crosswise: incumbent wings when the inner margins overlap; not well distinguished from cruciate.
Crura: the legs or, more specifically, the thighs.
Crura cerebri: two large cords that connect the supra- with the sub-oesophageal ganglion.
Crus: a leg or leg-like structure.