USED IN ENTOMOLOGY. 25 



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. 

 Chelate: bearing a chela or claw; applied when claws are capable of being 



drawn down or back upon the last tarsal joint. 

 Chiasma: an X-like crossing of nerve fibers. 

 Chirotype: a specimen upon which a manuscript name is based. 

 Chitin: the material forming the hard parts of the insect body; it is a secre- 

 tion (or a metamorphosis?) of the epidermis, differing from horn by its 



insolubility in boiling liquor potassae: = elytra, entomolin. 

 Chitinogenous: applied to that layer of epidermal cells which secretes the 



chitin. 



Chitinization: the process of depositing or filling with chitin. 

 Chitinized: filled in with or hardened by chitin. 

 Chitinous: composed of chitine or like it in texture: as a color term is 



amber yellow. 



Chlorophane: an oily, greenish yellow pigment found in insects. 

 Chlorophyll: the green coloring matter of plants; one of the substances 



found in the blood of insects. 

 Chordotonal: responsive to vibrations; applied to the ear-like structures in 



Orthoptera. 



Chorion: the shell or covering membrane of an insect egg. 

 Chromatin: the minute granules that make up the chromoplasm of a cell 



nucleus. 

 Chromosome: one of the segments into which the chromoplasmic filaments 



of a cell nucleus breaks up just before indirect division. 

 Chrysalis or -id: applied specifically to the intermedial stage between larva 



and adult in butterflies : see pupa. 

 Chrysargyrus: silvery gilt. 

 Chyle: the food-mass after it has passed through the gizzard and is mixed 



with the secretions of the salivary glands and csecal structures, ready to be 



assimilated. 



Chylific ventricle: the true stomach in which the chyle is prepared and di- 

 gestion begins. 



Cibarian: referring to the mouth parts. 

 Cicatricose: a surface having scars with elevated margins like those of 



small-pox. 



Cicatrix: a scar: an elevated, rigid spot. 

 Cilia: fringes; series of moderate or thin hair arranged in tufts or single 



lines ; thin scattered hair on a surface or margin. 

 Ciliate: fringed: set with even, parallel hairs or soft bristles. 

 Cilium, pi. Cilia: q. v. 

 Cimicine: an oily fluid of disagreeable odor secreted by certain Heteroptera 



and used as a means of defense. 

 Cimier: the head crest in Pierid chrysalids. 



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