USED IN ENTOMOLOGY. 33 



Crepuscular: active or flying at dusk. 



Crescentiform: like a lumile or crescent. 



Crescentric: lunulate. 



Crest: a prominent, longitudinal carina ori the upper surface of any part of 



the head or body. 

 Crested: see cristate. 

 Cretaceous: chalky white: the third, uppermost and latest of the three great 



divisions of the mesozoic or secondary rocks. 

 Cribrate: pierced with closely set, small holes. 

 Cribriform: with perforations like those of a sieve. 

 Crineous: dark-brown, with a slight admixture of yellow and gray. 

 Crinite-us: with tufts of long thin hair: see lanuginose. 

 Crispate-us: with a wrinkled or fluted margin. 

 Crista: a ridge or crest. 



Cristate: with a prominent carina or crest on the upper surface: == crested. 

 Cristiform: in the form of a sharp ridge or crest. 

 Cristula: a small crest. 



Cristulate: with little crescent-like ridges or crests. 

 Croceous: saffron yellow; yellow with an admixture of red [pale cadmium 



yellow]. 



Crocus: = croceous. 



Crook: the hook or recurved tip of the antenna in Hesperida. 

 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 pupse. 



Crown: the top of head in Lepidopfera; 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 Dipt era, 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-cesopha- 



geal ganglion. 



Crus: a leg or leg-like structure. 

 Crustaceous: hard, like the shell of a crab. 

 Crypto: hidden, concealed. 

 Cryptocerata: a division of Hctcroptcra with small antennae concealed in a 



groove under the head : = adeloceratous : see gymnocerata. 

 Cryptogastra: with the venter or belly covered or concealed. 

 Cryptopentamera: feet 5- jointed, the 4th joint small and concealed. 

 Cryptotetramera: feet 4-jointed, one of them small and concealed. 

 Cryptothorax: a supposed thoracic ring between meso- and meta-thorax. 

 Crypts: minute secretory follicles or cavities: specifically, large gland-like 



structures between the epithelial cells in chylific ventricle. 



