HEXAPODA. 65 



The veins are frequently designated by nunnbers ; the 

 following table will indicate the correspondence of the num- 

 bers with the names: 



I. Costa. 

 II. Subcosta. 



III. Radius. 



IV. Premedia. 

 V. Media. 



VI. Postmedia. 

 VII. Cubitus. 

 VIII. 1 



IX. 

 X. 



et aL 



V Anal. 



Fig. yS.—Diagram of wing-, showing margbs, 

 angles, and veins. 



m. 



FIG i^.—'D\2,gx^m. of wing of moth, showing: the arrangement of the veins ; veins IV and 



VI are wanting. 



