51 Cos 



Coronate. — (Egg.) Surrounded at the superior 

 extremity with a circle of strong spines, for the 

 reception of another egg, whereby they hang 

 together. (L. corona, a crown.) 



Coronet. — An ellipsoidal ridge, seen in the puparia 

 of the males of Lecaniinae. (L. corona.) 



Coronula. — A coronet, or semi-coronet of spines. 

 (L. corona.) 



Corpus. — The body ; the whole crust of the insect ; 

 consisting of the exoderma or external covering, 

 and the esoderma or internal cuticle, which 

 lines it. (L. body.) 



Costa. — A longitudinal raised rib. (L. a rib.) 



Costa. — (Wing.) The outer margin of the wing 

 when it is outspread. (L. costa, a rib.) 



Costal. — Pertaining to the costa. (L. costa.) 



Costal cell {cellula cosfalit^), Costal area [area 

 costalis). That part of the wing lying between 

 the anterior margin and the costal nervure. 

 If the cell is divided by minor nervures — the 

 costal cells or ccllulm costaJes. (L. costa, a rib, 

 and area.) 



Costal nervure {nervura costalis). — The first principal 

 nerve of the wing, it is the strong nervure which 

 runs along the upper edge of each wing, either 

 on the extreme edge or just below it. (L. costa, 

 and Gr. neuron, a nerve.) 



Costal region {regio costalis). — The wings of insects 

 present a somewhat triangular figure ; the 

 upper portion or side of this figure is called the 



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